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Find over 500 more construction specifications | Arcat.com
         
Air Balance Louvers
 
         
SECTION 08 91 00
 
         
LOUVERS
 
         
 
         
Copyright 2019 - 2019 ARCAT, Inc. - All rights reserved

          ** NOTE TO SPECIFIER ** Air Balance; louvers.
This section is based on the products of Air Balance, which is located at:
450 Riverside Dr.
Wyalusing, PA 18853
Tel: 570-746-1888
Fax: 570-746-9286
Email: request info
Web: http://airbalance.com
[ Click Here ] for additional information.
 
          PART 1GENERAL
 
          1.1SECTION INCLUDES
          ** NOTE TO SPECIFIER ** Delete items below not required for project.
 
          A.Louvers and accessories including the following:
          1.Fixed, extruded-aluminum louvers.
          2.Fixed, formed-metal louvers.
          3.Fixed, acoustical louvers.
          4.Louver screens.
          5.Blank-off panels.
 
          1.2RELATED SECTIONS
          ** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
 
          A.Section 08 11 00 - Metal Doors and Frames.
 
          B.Section 09 90 00 - Painting and Coating.
 
          1.3REFERENCES
          ** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
 
          A.ASTM International (ASTM):
          1.ASTM A 240 - Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
          2.ASTM A 653 - Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process
          3.ASTM A 780 - Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings
          4.ASTM B 209 - Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate
          5.ASTM B 221 - Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes
          6.ASTM D 1187 - Standard Specification for Asphalt-Base Emulsions for Use as Protective Coatings for Metal
          7.ASTM E 90 - Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements.
          8.ASTM E 413 - Classification for Rating Sound Insulation.
          9.ASTM E 488 - Standard Test Methods for Strength of Anchors in Concrete Elements
          10.ASTM E 966 - Standard Guide for Field Measurements of Airborne Sound Attenuation of Building Facades and Facade Elements.
          11.ASTM E 1332 - Standard Classification for Rating Outdoor-Indoor Sound Attenuation.
          12.ASTM E 1886 - Standard Test Method for Performance of Exterior Windows, Curtain Walls, Doors, and Impact Protective Systems Impacted by Missile(s) and Exposed to Cyclic Pressure Differentials
          13.ASTM E 1996 - Standard Specification for Performance of Exterior Windows, Curtain Walls, Doors, and Impact Protective Systems Impacted by Windborne Debris in Hurricanes
 
          B.American Architectural Manufacturers Association (AAMA):
          1.AAMA 611 - Voluntary Specification for Anodized Architectural Aluminum.
          2.AAMA 2604 - Voluntary Specification, Performance Requirements and Test Procedures for High Performance Organic Coatings on Aluminum Extrusions and Panels.
          3.AAMA 2605 - Voluntary Specification, Performance Requirements and Test Procedures for Superior Performing Organic Coatings on Aluminum Extrusions and Panels.
 
          C.Air Movement and Control Association International, Inc. (AMCA):
          1.AMCA 500-L - Laboratory Methods of Testing Louvers for Rating.
          2.AMCA 501 - Louver Application Manual and Design Guide.
 
          D.Florida Building Code, Miami-Dade County NOA; Test Protocols for High Velocity Hurricane Zone.
          1.TAS 100 A-95 Test Procedure for Wind and Wind Driven Rain Resistance and/or Increased Windspeed Resistance of Soffit Ventilation Strip and Continuous or Intermittent Ventilation System Installed at the Ridge Area.
          2.TAS(PA)201 - Impact Test Procedures.
          3.TAS(PA)202 - Criteria for Testing Impact and Nonimpact Resistant Building Envelope Components Using Uniform Static Air Pressure.
          4.TAS(PA)203 - Criteria for Testing Products Subject to Cyclic Wind Pressure Loading.
 
          E.Sheet Metal & Air Conditioning Contractors' National Association (SMACNA):
          1.SMACNA - Architectural Sheet Metal Manual.
 
          1.4DEFINITIONS
 
          A.Louver Terminology: Definitions of terms for metal louvers contained in AMCA 501 apply to this Section unless otherwise defined in this Section or in referenced standards.
 
          B.Horizontal Louver: Louver with horizontal blades (i.e., the axes of the blades are horizontal).
 
          C.Vertical Louver: Louver with vertical blades (i.e., the axes of the blades are vertical).
 
          D.Drainable-Blade Louver: Louver with blades having gutters that collect water and drain it to channels in jambs and mullions, which carry it to bottom of unit and away from opening.
 
          E.Wind-Driven-Rain-Resistant Louver: Louver that provides specified wind-driven rain performance, as determined by testing according to AMCA 500-L.
 
          1.5SUBMITTALS
 
          A.Submit under provisions of Section 01 30 00 - Administrative Requirements.
 
          B.Product Data:
          1.Manufacturer's data sheets on each product to be used.
          2.Preparation instructions and recommendations.
          3.Storage and handling requirements and recommendations.
          4.Typical installation methods.
 
          C.Shop Drawings: Include details of materials, construction and finish. Include relationship with adjacent construction.
          ** NOTE TO SPECIFIER ** Delete if not required.
 
          D.Delegated Design Submittal: For louvers indicated to comply with structural performance requirements, including analysis provided by manufacturer.
 
          E.Product Test Reports: Based on evaluation of comprehensive tests performed according to AMCA 500-L by a qualified testing agency or by manufacturer and witnessed by a qualified testing agency, for each type of louver and showing compliance with performance requirements specified. Louver shall be licensed to bear the AMCA certified ratings seal.
 
          1.6QUALITY ASSURANCE
 
          A.Manufacturer Qualifications: Company specializing in manufacturing products specified in this section with a minimum five years documented experience.
 
          B.Source Limitations: Provide each type of product from a single manufacturing source to ensure uniformity.
 
          1.7DELIVERY, STORAGE, AND HANDLING
 
          A.Store and handle in strict compliance with manufacturer's written instructions and recommendations.
 
          B.Protect from damage due to weather, excessive temperature, and construction operations.
 
          PART 2PRODUCTS
 
          2.1MANUFACTURERS
 
          A.Acceptable Manufacturer: Air Balance, which is located at: 450 Riverside Dr.; Wyalusing, PA 18853; Tel: 570-746-1888; Fax: 570-746-9286; Email: request info; Web: http://airbalance.com
          ** NOTE TO SPECIFIER ** Delete two of the following three paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
 
          B.Substitutions: Not permitted.
 
          C.Substitutions: Subject to approval products manufactured by Airline Louvers, Arrow United Industries, Cesco Products, and Louvers and Dampers will be acceptable
 
          D.Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
 
          2.2PERFORMANCE REQUIREMENTS
          ** NOTE TO SPECIFIER ** Delete Delegated Design if not required.
 
          A.Delegated Design: Design louvers, including comprehensive engineering analysis by a qualified professional engineer, using structural performance requirements and design criteria indicated.
 
          B.Structural Performance: Louvers shall withstand the effects of gravity loads and the following loads and stresses within limits and under conditions indicated without permanent deformation of louver components, noise or metal fatigue caused by louver-blade rattle or flutter, or permanent damage to fasteners and anchors. Wind pressures shall be considered to act normal to the face of the building:
          ** NOTE TO SPECIFIER ** Select one of the three wind loads subparagraphs below. Delete options not required.
          1.Wind Loads: Determine loads based on pressures as indicated on Drawings.
          2.Wind Loads: Determine loads based on a uniform pressure of 20 lbf/sq. ft. (957 Pa), acting inward or outward.
          3.Wind Loads: Determine loads based on pressures indicated below:
          a.Corner Zone: Within ____ feet of building corners, uniform pressure of _____, acting inward, and _____, acting outward.
          b.Other Than Corner Zone: Uniform pressure of _____, acting inward, and _____, acting outward.
          ** NOTE TO SPECIFIER ** Delete if not required.
 
          C.Windborne-Debris-Impact Resistance: Louvers located within 30 feet (9.1 m) of grade shall pass large-missile testing requirements in ASTM E 1996, when tested according to ASTM E 1886. Test specimens shall be no smaller in width and length than louvers indicated for use on Project.
          ** NOTE TO SPECIFIER ** Enhanced protection applies to essential facilities. Delete protection level not required.
          1.Protection level: Basic.
          2.Protection level: Enhanced.
          ** NOTE TO SPECIFIER ** Wind Zone regions are defined by the IBC. Delete zones not required.
          3.Wind Zone: 1.
          4.Wind Zone: 2.
          5.Wind Zone: 3
          6.Wind Zone: 4
          ** NOTE TO SPECIFIER ** Component Importance Factor is generally 1.0 unless the structure is in Seismic Use Group III and louver is necessary for continued operation of facility or failure of louver could impair continued operation of facility, in which case the Component Importance Factor is 1.5. Delete factor not required.
          7.Component Importance Factor: 1.0.
          8.Component Importance Factor: 1.5.
          ** NOTE TO SPECIFIER ** Delete if louvers are sufficiently oversized that performance is not critical.
 
          D.Louver Performance Ratings: Provide louvers complying with requirements specified, as demonstrated by testing manufacturer's stock units identical to those provided, except for length and width according to AMCA 500-L.
          ** NOTE TO SPECIFIER ** Thermal Movements requirement may not be needed for most louvers, but should be retained for continuous louver assemblies. Delete if not required.
 
          E.Thermal Movements: Allow for thermal movements from ambient and surface temperature changes.
          ** NOTE TO SPECIFIER ** Delete option not required.
          1.Temperature Change (Range): 120 deg F (67 deg C), ambient; 180 deg F (100 deg C), material surfaces.
          2.Temperature Change (Range): _____.
 
          F.SMACNA Standard: Comply with recommendations in SMACNA's "Architectural Sheet Metal Manual" for fabrication, construction details, and installation procedures.
          ** NOTE TO SPECIFIER ** Delete if not required.
 
          G.UL and NEMA Compliance: Provide motors and related components for motor-operated louvers that are listed and labeled by UL and comply with applicable NEMA standards.
          ** NOTE TO SPECIFIER ** Delete if not required.
 
          2.3FIXED, EXTRUDED-ALUMINUM LOUVERS
          ** NOTE TO SPECIFIER ** Delete product types not required.
 
          A.Horizontal, Non-Drainable-Blade Louver:
          ** NOTE TO SPECIFIER ** Delete Basis of Design products not required.
          1.Basis of Design: Model AATL30; as manufactured by AIR BALANCE.
          a.Louver Depth: 0.465 inches (11.8 mm).
          b.Blade Profile: Plain blade.
          c.Blade Spacing: 0.775 inches (19.7 mm).
          d.Blade Angle: 30 degrees.
          e.Free Area: 11.5 sq.ft. (1.07 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          ** NOTE TO SPECIFIER ** Delete thickness option not required.
          f.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          g.Frame and Blade Nominal Thickness: Not less than 0.060 inch (1.52 mm) for blades and 0.080 inch (2.03 mm) for frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          h.Continuous line.
          2.Basis of Design: Model AATL42; as manufactured by AIR BALANCE.
          a.Louver Depth: 0.465 inches (11.8 mm).
          b.Blade Profile: Plain blade.
          c.Blade Spacing: 0.775 inches (19.7 mm).
          d.Blade Angle: 42 degrees.
          e.Free Area: 9.68 sq.ft. (0.899 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          ** NOTE TO SPECIFIER ** Delete thickness option not required.
          f.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          g.Frame and Blade Nominal Thickness: Not less than 0.060 inch (1.52 mm) for blades and 0.080 inch (2.03 mm) for frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          h.Continuous line.
          3.Basis of Design: Model A150; as manufactured by AIR BALANCE.
          a.Louver Depth: 1-1/2 inches (38 mm).
          b.Blade Profile: Plain blade with center baffle.
          c.Blade Spacing: 1-1/2 inches (38 mm).
          d.Blade Angle: 30 degrees.
          e.Free Area: 7.37 sq.ft. (0.68 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.153 inch wg (38 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 459 fpm (2.3 m/s).
          ** NOTE TO SPECIFIER ** Delete thickness option not required.
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          i.Frame and Blade Nominal Thickness: Not less than 0.060 inch (1.52 mm) for blades and 0.080 inch (2.03 mm) for frames.
          4.Basis of Design: Model A245; as manufactured by AIR BALANCE.
          a.Louver Depth: 2 inches (50 mm).
          b.Blade Profile: Plain blade with center baffle.
          c.Blade Spacing: 2-3/4 inches (70 mm).
          d.Blade Angle: 45 degrees.
          e.Free Area: 7.23 sq.ft. (0.67 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.15 inch wg (37 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 748 fpm (3.8 m/s).
          ** NOTE TO SPECIFIER ** Delete thickness option not required.
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          i.Frame and Blade Nominal Thickness: Not less than 0.060 inch (1.52 mm) for blades and 0.080 inch (2.03 mm) for frames.
          5.Basis of Design: Model A455; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Plain blade.
          c.Blade Spacing: 4 inches (100 mm).
          d.Blade Angle: 45 degrees.
          e.Free Area: 9.09 sq.ft. (0.84 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.16 inch wg (40 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 886 fpm (4.5 m/s).
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          i.Continuous line.
          6.Basis of Design: Model A465; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Plain blade with center baffle.
          c.Blade Spacing: 4 inches (100 mm).
          d.Blade Angle: 45 degrees.
          e.Free Area: 9.02 sq.ft. (0.84 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.145 inch wg (36 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 932 fpm (4.7 m/s).
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          i.Continuous line.
          7.Basis of Design: Model A430; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Plain blade.
          c.Blade Spacing: 3.5 inches (89 mm).
          d.Blade Angle: 37 degrees.
          e.Free Area: 9.16 sq.ft. (0.85 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.121 inch wg (30 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 876 fpm (4.5 m/s).
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          i.Continuous line.
          8.Basis of Design: Model A440; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Plain blade.
          c.Blade Spacing: 3 inches (76 mm).
          d.Blade Angle: 30 degrees.
          e.Free Area: 7.66 sq.ft. (0.71 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.121 inch wg (30 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 763 fpm (3.9 m/s).
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          i.Continuous line.
          9.Basis of Design: Model A655; as manufactured by AIR BALANCE.
          a.Louver Depth: 6 inches (150 mm).
          b.Blade Profile: Plain blade with center baffle.
          c.Blade Spacing: 5.375 inches (137 mm).
          d.Blade Angle: 45 degrees.
          e.Free Area: 8.73 sq.ft. (0.81 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.13 inch wg (32 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 1093 fpm (5.6 m/s).
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          i.Continuous line.
 
          B.Horizontal, Drainable-Blade Louver:
          ** NOTE TO SPECIFIER ** Delete Basis of Design products not required.
          1.Basis of Design: Model A258; as manufactured by AIR BALANCE.
          a.Louver Depth: 2 inches (50 mm).
          b.Blade Profile: Drainable blade with center baffle.
          c.Blade Spacing: 2.75 inches (70 mm).
          d.Blade Angle: 45 degrees.
          e.Free Area: 7.23 sq.ft. (0.67 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.12 inch wg (30 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 901 fpm (4.6 m/s).
          ** NOTE TO SPECIFIER ** Delete thickness option not required.
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          i.Frame and Blade Nominal Thickness: Not less than 0.060 inch (1.52 mm) for blades and 0.080 inch (2.03 mm) for frames.
          2.Basis of Design: Model A435; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Drainable blade.
          c.Blade Spacing: 3.5 inches (89 mm).
          d.Blade Angle: 37 degrees.
          e.Free Area: 9.07 sq.ft. (0.84 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.136 inch wg (34 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 868 fpm (4.4 m/s).
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          3.Basis of Design: Model A424; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Drainable blade with center baffle.
          c.Blade Spacing: 4 inches (100 mm).
          d.Blade Angle: 45 degrees.
          e.Free Area: 8.37 sq.ft. (0.78 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.138 inch wg (34 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 942 fpm (4.8 m/s).
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          i.Continuous line. Visible mullion required every 10 feet (3048 mm) maximum.
          4.Basis of Design: Model A445D; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Drainable blade with center baffle.
          c.Blade Spacing: 5 inches (127 mm).
          d.Blade Angle: 45 degrees.
          e.Free Area: 8.16 sq.ft. (0.76 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.19 inch wg (47 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 1021 fpm (5.2 m/s).
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          5.Basis of Design: Model A635; as manufactured by AIR BALANCE.
          a.Louver Depth: 6 inches (150 mm).
          b.Blade Profile: Drainable blade with center baffle.
          c.Blade Spacing: 4.5 inches (114 mm).
          d.Blade Angle: 35/42 degrees.
          e.Free Area: 8.97 sq.ft. (0.83 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.12 inch wg (30 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: Minimum 1250 fpm (6.4 m/s).
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          i.Continuous line. Visible mullion required every 10 feet (3048 mm) maximum.
          6.Basis of Design: Model A634; as manufactured by AIR BALANCE.
          a.Louver Depth: 6 inches (150 mm).
          b.Blade Profile: Drainable blade with center baffle.
          c.Blade Spacing: 4.5 inches (114 mm).
          d.Blade Angle: 35/42 degrees.
          e.Free Area: 8.91 sq.ft. (0.83 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.12 inch wg (30 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: Minimum 1250 fpm (6.4 m/s).
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          i.Continuous line. Visible mullion required every 10 feet (3048 mm) maximum.
          7.Basis of Design: Model A4DHP; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Drainable blade with center baffle.
          c.Blade Spacing: 3 inches (76 mm).
          d.Blade Angle: 35 degrees.
          e.Free Area: 9.63 sq.ft. (0.89 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.13 inch wg (32 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 909 fpm (4.6 m/s).
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          8.Basis of Design: Model A6DHP; as manufactured by AIR BALANCE.
          a.Louver Depth: 6 inches (152 mm).
          b.Blade Profile: Drainable blade.
          c.Blade Spacing: 4 inches (100 mm).
          d.Free Area: 10.06 sq.ft. (0.93 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          e.Pressure Drop: 0.13 inch wg (32 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          f.Point of Beginning Water Penetration: 1103 fpm (5.6 m/s).
          g.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          9.Basis of Design: Model A220; as manufactured by AIR BALANCE.
          a.Performance Requirements:
          1)AMCA: Certified for Air Performance and Water Penetration
          2)Miami-Dade: TAS(PA)201, TAS(PA)202, TAS(PA)203
          b.Louver Depth: 4 inches (100 mm).
          c.Blade Profile: Drainable blade with center baffle.
          d.Blade Spacing: 4 inches (100 mm).
          e.Blade Angle: 45 degrees.
          f.Free Area: 8.37 sq.ft. (0.78 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          g.Pressure Drop: 0.138 inch wg (34 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          h.Point of Beginning Water Penetration: 1075 fpm (5.5 m/s).
          ** NOTE TO SPECIFIER ** Delete thickness option not required.
          i.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          j.Frame and Blade Nominal Thickness: Not less than 0.060 inch (1.52 mm) for blades and 0.080 inch (2.03 mm) for frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          k.Continuous line. Visible mullion required every 10 feet (3048 mm) maximum.
          10.Basis of Design: Model A320; as manufactured by AIR BALANCE.
          a.Performance Requirements:
          1)AMCA: Certified for Air Performance and Water Penetration
          2)Miami-Dade: TAS(PA)201, TAS(PA)202, TAS(PA)203
          b.Louver Depth: 6 inches (152 mm).
          c.Blade Profile: Drainable blade.
          d.Blade Spacing: 4 inches (100 mm).
          e.Blade Angle: 37.5 degrees.
          f.Free Area: 9.24 sq.ft. (0.86 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          g.Pressure Drop: 0.14 inch wg (35 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          h.Point of Beginning Water Penetration: Minimum 1250 fpm (6.4 m/s).
          i.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line mullions are optional. Delete if not required.
          j.Mullions: Continuous line. Visible mullion required every 10 feet (3048 mm) maximum.
          ** NOTE TO SPECIFIER ** Delete mullion types not required.
          11.Mullion Type: Exposed.
          12.Mullion Type: Semi-recessed.
          13.Mullion Type: Fully recessed.
          ** NOTE TO SPECIFIER ** Delete if not required.
          14.AMCA Seal: Mark units with AMCA Certified Ratings Seal.
 
          C.Horizontal, Continuous-Line, Drainable-Blade Louver:
          1.Basis of Design: Model A650; as manufactured by AIR BALANCE.
          2.Louver Depth: 6 inches (150 mm).
          ** NOTE TO SPECIFIER ** If project has specific blade spacing or angle requirements indicate them below. Delete if not required.
          3.Blade Spacing: 4.5 inch () on center.
          4.Blade Angle: 45 degree blade angle.
          5.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          6.Free Area: Not less than 8.4 sq.ft. (0.78 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          7.Pressure Drop: Not more than 0.10 inch wg (25 Pa) static pressure drop at 850 fpm (4.3 m/s) free-area velocity.
          8.Point of Beginning Water Penetration: Not less than 1200 fpm (6.1 m/s).
          9.Continuous line.
 
          D.Horizontal, Wind-Driven-Rain-Resistant Louver:
          ** NOTE TO SPECIFIER ** Delete Basis of Design products not required.
          1.Basis of Design: Model A200; as manufactured by AIR BALANCE.
          a.Louver Depth: 2 inches (50 mm).
          b.Blade Profile: Chevron.
          c.Blade Spacing: 1 inches (25 mm).
          d.Free Area: 6.93 sq.ft. (0.64 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          e.Pressure Drop: 0.38 inch wg (95 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          f.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          g.Continuous line.
          2.Basis of Design: Model A490; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Chevron.
          c.Blade Spacing: 1.625 inches (41 mm).
          d.Free Area: 7.50 sq.ft. (0.70 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          e.Pressure Drop: 0.26 inch wg (65 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          f.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          g.Continuous line.
          3.Basis of Design: Model A590; as manufactured by AIR BALANCE.
          a.Louver Depth: 5 inches (127 mm).
          b.Blade Profile: Chevron.
          c.Blade Spacing: 2 inches (52 mm).
          d.Free Area: 7.08 sq.ft. (0.66 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          e.Pressure Drop: 0.2 inch wg (50 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          f.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          g.Continuous line.
          4.Basis of Design: Model A500; as manufactured by AIR BALANCE.
          a.Louver Depth: 5 inches (127 mm).
          b.Blade Profile: Chevron.
          c.Blade Spacing: 2.25 inches (57 mm).
          d.Free Area: 7.73 sq.ft. (0.72 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          e.Pressure Drop: 0.208 inch wg (52 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          f.Point of Beginning Water Penetration: 1141 fpm (5.8 m/s).
          g.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          5.Basis of Design: Model A675; as manufactured by AIR BALANCE.
          a.Louver Depth: 6 inches (152 mm).
          b.Blade Profile: Straight/Chevron.
          c.Blade Spacing: 3.5 inches (89 mm).
          d.Free Area: 7.07 sq.ft. (0.66 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          e.Pressure Drop: 0.16 inch wg (40 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          f.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          g.Continuous line.
          6.Basis of Design: Model A750; as manufactured by AIR BALANCE.
          a.Louver Depth: 7 inches (178 mm).
          b.Blade Profile: Chevron.
          c.Blade Spacing: 2.25 inches (57 mm).
          d.Free Area: 7.22 sq.ft. (0.67 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          e.Pressure Drop: 0.33 inch wg (82 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          f.Point of Beginning Water Penetration: 1187 fpm (6.0 m/s).
          g.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          h.Continuous line.
          7.Basis of Design: Model A850; as manufactured by AIR BALANCE.
          a.Louver Depth: 8 inches (203 mm).
          b.Blade Profile: Chevron.
          c.Blade Spacing: 2.25 inches (57 mm).
          d.Free Area: 9.01 sq.ft. (0.84 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          e.Pressure Drop: 0.48 inch wg (120 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          f.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          g.Continuous line.
          8.Basis of Design: Model A520; as manufactured by AIR BALANCE.
          a.Performance Requirements:
          1)AMCA: Certified for Air Performance, Water Penetration and Wind Driven Rain
          2)Miami-Dade: TAS(PA)201, TAS(PA)202, TAS(PA)203
          b.Louver Depth: 5 inches (127 mm).
          c.Blade Profile: Chevron.
          d.Blade Spacing: 2 inches (52 mm).
          e.Free Area: 7.08 sq.ft. (0.66 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.32 inch wg (80 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: Minimum 1250 fpm (6.4 m/s).
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          i.Continuous line.
          ** NOTE TO SPECIFIER ** Delete wind driven rain performance requirements not required.
          9.Wind Driven Rain Performance:
          a.Effectiveness: Not less than 99 percent.
          b.Effectiveness: Not less than 95 percent.
          c.Effectiveness: Not less than 80 percent.
          d.Effectiveness: Not less than _____ percent.
          e.Rainfall Rate and Wind Speed: 3 inches (75 mm) per hour and 29 mph (13 m/s).
          f.Rainfall Rate and Wind Speed: 8 inches (200 mm) per hour and 50 mph (22.4 m/s).
          g.Core-Area Intake Velocity: 300 fpm (1.5 m/s).
          h.Core-Area Intake Velocity: 400 fpm (2.0 m/s).
          i.Core-Area Intake Velocity: 500 fpm (2.5 m/s).
          ** NOTE TO SPECIFIER ** Delete if not required.
          10.AMCA Seal: Mark units with AMCA Certified Ratings Seal.
 
          E.Vertical, Wind-Driven-Rain-Resistant Louver:
          ** NOTE TO SPECIFIER ** Delete Basis of Design products not required.
          1.Basis of Design: Model A328; as manufactured by AIR BALANCE.
          a.Louver Depth: 3 inches (76 mm).
          b.Blade Profile: Chevron.
          c.Blade Spacing: 0.8125 inches (21 mm).
          d.Free Area: 7.06 sq.ft. (0.66 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          e.Pressure Drop: 0.083 inch wg (21 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          ** NOTE TO SPECIFIER ** Delete thickness option not required.
          f.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          g.Frame and Blade Nominal Thickness: Not less than 0.060 inch (1.52 mm) for blades and 0.080 inch (2.03 mm) for frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          h.Continuous line.
          2.Basis of Design: Model A491; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Chevron.
          c.Blade Spacing: 1.625 inches (41 mm).
          d.Free Area: 7.58 sq.ft. (0.70 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          e.Pressure Drop: 0.26 inch wg (65 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          f.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          g.Continuous line.
          3.Basis of Design: Model A624; as manufactured by AIR BALANCE.
          a.Louver Depth: 6 inches (150 mm).
          b.Blade Profile: Chevron.
          c.Blade Spacing: 1.625 inches (41 mm).
          d.Free Area: 8.51 sq.ft. (0.79 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          e.Pressure Drop: 0.103 inch wg (26 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          f.Point of Beginning Water Penetration: Minimum 1250 fpm (6.4 m/s).
          g.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          h.Continuous line.
          4.Basis of Design: Model A800; as manufactured by AIR BALANCE.
          a.Louver Depth: 8 inches (200 mm).
          b.Blade Profile: Chevron.
          c.Blade Spacing: 1.25 inches (32 mm).
          d.Free Area: 4.41 sq.ft. (0.41 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          e.Pressure Drop: 0.13 inch wg (32 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          f.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          g.Continuous line.
          5.Basis of Design: Model A680; as manufactured by AIR BALANCE.
          a.Performance Requirements:
          1)AMCA: Certified for Air Performance and Wind-Driven Rain
          2)Miami-Dade: TAS-100(A)-95, TAS(PA)201, TAS(PA)202, TAS(PA)203
          b.Louver Depth: 6 inches (150 mm).
          c.Blade Profile: Chevron.
          d.Blade Spacing: 1.625 inches (41 mm).
          e.Free Area: 7.85 sq.ft. (0.73 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.103 inch wg (26 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          h.Continuous line.
          6.Basis of Design: Model A820; as manufactured by AIR BALANCE.
          a.Performance Requirements:
          1)AMCA: Certified for Air Performance and Wind-Driven Rain.
          2)Miami-Dade: TAS-100(A)-95, TAS(PA)201, TAS(PA)202, TAS(PA)203, ASTM E1996, ASTM E330, and ASTM E1886.
          b.Louver Depth: 8 inches (200 mm).
          c.Blade Profile: Chevron.
          d.Blade Spacing: 1.625 inches (41 mm).
          e.Free Area: 4.69 sq.ft. (0.44 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.19 inch wg (47 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: Minimum 1250 fpm (6.4 m/s).
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          i.Continuous line.
          ** NOTE TO SPECIFIER ** Delete wind driven rain performance requirements not required.
          7.Wind Driven Rain Performance:
          a.Effectiveness: Not less than 99 percent.
          b.Rainfall Rate and Wind Speed: 3 inches (75 mm) per hour and 29 mph (13 m/s).
          c.Rainfall Rate and Wind Speed: 8 inches (200 mm) per hour and 50 mph (22.4 m/s).
          d.Core-Area Intake Velocity: 300 fpm (1.5 m/s).
          e.Core-Area Intake Velocity: 400 fpm (2.0 m/s).
          f.Core-Area Intake Velocity: 500 fpm (2.5 m/s).
          ** NOTE TO SPECIFIER ** Delete if not required.
          8.AMCA Seal: Mark units with AMCA Certified Ratings Seal.
 
          F.Horizontal, Sight-Proof, Drainable-Blade Louver:
          ** NOTE TO SPECIFIER ** Delete Basis of Design products not required.
          1.Basis of Design: Model A481; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Inverted Y.
          c.Blade Spacing: 3 inches (76 mm).
          d.Free Area: 5.98 sq.ft. (0.56 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          e.Pressure Drop: 0.36 inch wg (90 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          f.Point of Beginning Water Penetration: 920 fpm (4.7 m/s).
          g.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          2.Basis of Design: Model A482; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Inverted Y.
          c.Blade Spacing: 3 inches (76 mm).
          d.Free Area: 5.98 sq.ft. (0.56 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          e.Pressure Drop: 0.35 inch wg (87 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          f.Point of Beginning Water Penetration: 984 fpm (5.0 m/s).
          g.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          3.Basis of Design: Model A281; as manufactured by AIR BALANCE.
          a.Louver Depth: 2 inches (50 mm).
          b.Blade Profile: Inverted Y.
          c.Blade Spacing: 1.75 inches (44 mm).
          d.Free Area: 4.43 sq.ft. (0.41 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          e.Pressure Drop: 0.40 inch wg (100 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          f.Point of Beginning Water Penetration: 924 fpm (4.7 m/s).
          g.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          4.Mullion Type: Exposed.
 
          G.Vertical, Sight-Proof, Drainable-Blade Louver:
          ** NOTE TO SPECIFIER ** Delete Basis of Design products not required.
          1.Basis of Design: Model A485; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Chevron.
          c.Blade Angle: 70 degrees.
          d.Blade Spacing: 3 inches (76 mm).
          e.Free Area: 6.22 sq.ft. (0.58 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.50 inch wg (125 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 789 fpm (4.0 m/s).
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          2.Basis of Design: Model A486; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Chevron.
          c.Blade Angle: 70 degrees.
          d.Blade Spacing: 3 inches (76 mm).
          e.Free Area: 6.22 sq.ft. (0.58 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.50 inch wg (125 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 848 fpm (4.3 m/s).
          h.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          3.Basis of Design: Model A482; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Inverted Y.
          c.Blade Spacing: 3 inches (76 mm).
          d.Free Area: 5.98 sq.ft. (0.56 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          e.Pressure Drop: 0.35 inch wg (87 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          f.Point of Beginning Water Penetration: 984 fpm (5.0 m/s).
          g.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          4.Basis of Design: Model A281; as manufactured by AIR BALANCE.
          a.Louver Depth: 2 inches (50 mm).
          b.Blade Profile: Inverted Y.
          c.Blade Spacing: 1.75 inches (44 mm).
          d.Free Area: 4.43 sq.ft. (0.41 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          e.Pressure Drop: 0.40 inch wg (100 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          f.Point of Beginning Water Penetration: 924 fpm (4.7 m/s).
          g.Frame and Blade Nominal Thickness: Not less than 0.080 inch (2.03 mm) for blades and frames.
          5.Mullion Type: Exposed.
          ** NOTE TO SPECIFIER ** Delete if not required.
 
          2.4FIXED, FORMED-METAL LOUVERS
          ** NOTE TO SPECIFIER ** Delete product types not required.
 
          A.Horizontal, Non-Drainable-Blade Louver:
          ** NOTE TO SPECIFIER ** Delete Basis of Design products not required.
          1.Basis of Design: Model S245; as manufactured by AIR BALANCE.
          a.Louver Depth: 2 inches (50 mm).
          b.Blade Profile: Plain blade.
          c.Blade Spacing: 2.125 inches (54 mm).
          d.Blade Angle: 45 degrees.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          e.Continuous line.
          2.Basis of Design: Model S400; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Plain blade.
          c.Blade Spacing: 4.125 inches (105 mm).
          d.Blade Angle: 45 degrees.
          e.Free Area: 8.11 sq.ft. (0.75 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.185 inch wg (46 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 614 fpm (3.1 m/s).
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          h.Continuous line.
          3.Basis of Design: Model S655; as manufactured by AIR BALANCE.
          a.Louver Depth: 6 inches (150 mm).
          b.Blade Profile: Plain blade.
          c.Blade Spacing: 6.5625 inches (167 mm).
          d.Blade Angle: 45 degrees.
          e.Free Area: 7.41 sq.ft. (0.69 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          f.Continuous line.
          ** NOTE TO SPECIFIER ** Delete thickness not required.
          4.Frame and Blade Material and Nominal Thickness: Galvanized-steel, not less than 0.052 inch (1.32 mm).
          5.Frame and Blade Material and Nominal Thickness: Galvanized-steel, not less than 0.064 inch (1.63 mm).
          6.Frame and Blade Material and Nominal Thickness: Stainless-steel, not less than 0.050 inch (1.27 mm).
          7.Frame and Blade Material and Nominal Thickness: Stainless-steel, not less than 0.062 inch (1.59 mm).
          8.Mullion Type: Exposed.
 
          B.Horizontal, Drainable-Blade Louver:
          ** NOTE TO SPECIFIER ** Delete Basis of Design products not required.
          1.Basis of Design: Model S445; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Plain blade.
          c.Blade Spacing: 4 inches (100 mm).
          d.Blade Angle: 45 degrees.
          e.Free Area: 8.00 sq.ft. (0.74 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.13 inch wg (32 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 987 fpm (5.0 m/s).
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          h.Continuous line.
          2.Basis of Design: Model S645; as manufactured by AIR BALANCE.
          a.Louver Depth: 6 inches (150 mm).
          b.Blade Profile: Plain blade.
          c.Blade Spacing: 6 inches (150 mm).
          d.Blade Angle: 45 degrees.
          e.Free Area: 8.31 sq.ft. (0.77 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.14 inch wg (35 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 952 fpm (4.8 m/s).
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          h.Continuous line.
          3.Basis of Design: Model S635; as manufactured by AIR BALANCE.
          a.Louver Depth: 6 inches (150 mm).
          b.Blade Profile: Plain blade.
          c.Blade Spacing: 3.5 inches (89 mm).
          d.Blade Angle: 35 degrees.
          e.Free Area: 8.84 sq.ft. (0.82 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.138 inch wg (34 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: Minimum 1250 fpm (6.4 m/s).
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          h.Continuous line.
          ** NOTE TO SPECIFIER ** Delete thickness not required.
          4.Frame and Blade Material and Nominal Thickness: Galvanized-steel, not less than 0.052 inch (1.32 mm) for frames and 0.040 inch (1.02 mm) for blades.
          5.Frame and Blade Material and Nominal Thickness: Galvanized-steel, not less than 0.052 inch (1.32 mm).
          6.Frame and Blade Material and Nominal Thickness: Galvanized-steel, not less than 0.064 inch (1.63 mm).
          7.Frame and Blade Material and Nominal Thickness: Stainless-steel, not less than 0.050 inch (1.27 mm).
          8.Frame and Blade Material and Nominal Thickness: Stainless-steel, not less than 0.062 inch (1.59 mm).
          9.Mullion Type: Exposed.
          ** NOTE TO SPECIFIER ** Delete if not required.
          10.AMCA Seal: Mark units with AMCA Certified Ratings Seal.
          ** NOTE TO SPECIFIER ** Delete if not required.
 
          2.5FIXED, ACOUSTICAL LOUVERS
          ** NOTE TO SPECIFIER ** Delete product types not required.
 
          A.Acoustic Performance: Provide acoustical louvers complying with ratings specified, as demonstrated by testing manufacturer's stock units identical to those specified except for length and width:
          1.Airborne sound-transmission loss according to ASTM E 90.
          2.Outdoor-indoor, sound-transmission loss according to ASTM E 966.
 
          B.Fixed, Formed-Metal Acoustical Louver: Louver with formed-metal blades filled on interior with mineral-fiber, rigid-board, acoustical insulation retained by perforated metal sheet of same material and finish as blade.
          ** NOTE TO SPECIFIER ** Delete Basis of Design products not required.
          1.Basis of Design: Model AAC482-12; as manufactured by AIR BALANCE.
          a.Louver Depth: 6 inches (150 mm).
          b.Blade Profile: Plain blade.
          c.Blade Spacing: 3.5 inches (89 mm).
          d.Blade Angle: 35 degrees.
          e.Free Area: 8.84 sq.ft. (0.82 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.138 inch wg (34 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: Minimum 1250 fpm (6.4 m/s).
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          h.Continuous line.
          2.Basis of Design: Model AAC482126; as manufactured by AIR BALANCE.
          a.Louver Depth: 12 inches (300 mm).
          b.Blade Profile: Acoustical.
          c.Blade Spacing: 6 inches (150 mm).
          d.Blade Angle: 42 degrees.
          e.Free Area: 3.98 sq.ft. (0.37 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.08 inch wg (20 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 1084 fpm (5.5 m/s).
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          h.Continuous line.
          3.Basis of Design: Model AAC482-66; as manufactured by AIR BALANCE.
          a.Louver Depth: 6 inches (150 mm).
          b.Blade Profile: Acoustical.
          c.Blade Spacing: 6 inches (150 mm).
          d.Blade Angle: 45 degrees.
          e.Free Area: 4.23 sq.ft. (0.39 sq.m.) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.11 inch wg (27 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 858 fpm (4.4 m/s).
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          h.Continuous line.
          4.Basis of Design: Model AAC482-88; as manufactured by AIR BALANCE.
          a.Louver Depth: 8 inches (200 mm).
          b.Blade Profile: Acoustical.
          c.Blade Spacing: 8 inches (200 mm).
          d.Blade Angle: 45 degrees.
          e.Free Area: 4.03 sq.ft. (0.37 sq.m) for a 48 inch (1220 mm) wide by 48 inch (1220 mm) high louver.
          f.Pressure Drop: 0.095 inch wg (24 Pa) static pressure drop at 1000 fpm (5.1 m/s) free-area velocity.
          g.Point of Beginning Water Penetration: 990 fpm (5.0 m/s).
          ** NOTE TO SPECIFIER ** Continuous line is optional. Delete if not required.
          h.Continuous line.
          5.Basis of Design: Model AAC73A; as manufactured by AIR BALANCE.
          6.Basis of Design: Model AFS401HF/AFS401LF; as manufactured by AIR BALANCE.
          ** NOTE TO SPECIFIER ** Delete materials thickness not required.
          7.Frame Material: Extruded aluminum or aluminum sheet, not less than 0.080 inch (2.03 mm).
          8.Frame Material: Galvanized-steel, not less than 0.052 inch (1.32 mm).
          9.Frame Material: Galvanized-steel, not less than 0.064 inch (1.63 mm).
          10.Blade Material: Aluminum sheet, not less than 0.063 inch (1.60 mm).
          11.Blade Material: Aluminum sheet, not less than 0.080 inch (2.03 mm).
          12.Blade Material: Galvanized-steel sheet, not less than 0.034 inch (0.86 mm).
          13.Blade Material: Galvanized-steel sheet, not less than 0.040 inch (1.02 mm).
          14.Blade Material: Galvanized-steel sheet, not less than 0.052 inch (1.32 mm).
          ** NOTE TO SPECIFIER ** Delete sound performance requirements not required.
          15.Airborne Sound-Transmission Loss: STC 10 per ASTM E 413, determined by testing in accordance with ASTM E 90.
          16.Airborne Sound-Transmission Loss: _____ per ASTM E 413, determined by testing in accordance with ASTM E 90.
          17.Outdoor-Indoor, Sound Transmission Loss: OITC 10 per ASTM E 1332, determined by testing in accordance with ASTM E 966.
          18.Outdoor-Indoor, Sound Transmission Loss: _____ per ASTM E 1332, determined by testing in accordance with ASTM E 966.
          ** NOTE TO SPECIFIER ** Delete if not required.
 
          2.6LOUVER SCREENS
 
          A.General:
          ** NOTE TO SPECIFIER ** Delete Basis of Design products not required.
          1.Basis of Design: Model AIS2; as manufactured by AIR BALANCE.
          a.Louver Depth: 2 inches (50 mm).
          b.Blade Profile: Inverted.
          c.Blade Spacing: 2.75 inches (70 mm).
          d.Blade Angle: 45 degrees.
          2.Basis of Design: Model AIS4; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Inverted.
          c.Blade Spacing: 4 inches (100 mm).
          d.Blade Angle: 45 degrees.
          3.Basis of Design: Model AIS6; as manufactured by AIR BALANCE.
          a.Louver Depth: 6 inches (150 mm).
          b.Blade Profile: Inverted.
          c.Blade Spacing: 5.375 inches (137 mm).
          d.Blade Angle: 45 degrees.
          4.Basis of Design: Model ASY; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Y.
          c.Blade Spacing: 3 inches (75 mm).
          d.Blade Angle: Vertical.
          5.Basis of Design: Model ASV; as manufactured by AIR BALANCE.
          a.Louver Depth: 4 inches (100 mm).
          b.Blade Profile: Chevron.
          c.Blade Spacing: 3 inches (75 mm).
          d.Blade Angle: Vertical.
          ** NOTE TO SPECIFIER ** Delete locations not required.
          6.Locations: Provide screen at each exterior louver.
          7.Locations: Provide screen at louvers indicated.
          8.Screen Location for Fixed Louvers: Interior face.
          ** NOTE TO SPECIFIER ** Delete screening types not required.
          9.Screening Type: Bird screening.
          10.Screening Type: Bird screening except where insect screening is indicated.
          11.Screening Type: Insect screening.
          ** NOTE TO SPECIFIER ** Delete screw type not required.
          12.Secure screen frames to louver frames with stainless-steel machine screws, spaced a maximum of 6 inches (150 mm) from each corner and 12 inches (300 mm) on center.
          13.Secure screen frames to louver frames with machine screws with heads finished to match louver, spaced a maximum of 6 inches (150 mm) from each corner and 12 inches (300 mm) on center.
          14.Louver Screen Frames: Fabricate with notched and cinched corners to louver sizes indicated.
          ** NOTE TO SPECIFIER ** Delete options not required.
          a.Metal: Same type and form of metal as indicated for louver to which screens are attached.
          b.Finish: Same finish as louver frames to which louver screens are attached.
          c.Finish: Mill finish unless otherwise indicated.
          d.Screen Frame Type: Rewirable frames with a driven spline or insert.
          e.Screen Frame Type: Non-rewirable, U-shaped frames.
          ** NOTE TO SPECIFIER ** Delete if not required.
 
          B.Louver Screening for Aluminum Louvers:
          ** NOTE TO SPECIFIER ** Delete screening options not required.
          1.Bird Screening: Aluminum, 1/2 inch (13 mm) square mesh, 0.063 inch (1.60 mm) wire.
          2.Bird Screening: Stainless steel, 1/2 inch (13 mm) square mesh, 0.047 inch (1.19 mm) wire.
          3.Bird Screening: Flattened, expanded aluminum, 3/4 by 0.050 inch (19 by 1.27 mm) thick.
          4.Insect Screening: Aluminum, 18 by 16 (1.4 by 1.6 mm) mesh, 0.012 inch (0.30 mm) wire.
          5.Insect Screening: Stainless steel, 18 by 18 (1.4 by 1.4 mm) mesh, 0.009 inch (0.23 mm) wire.
          ** NOTE TO SPECIFIER ** Delete if not required.
 
          C.Louver Screening for Galvanized-Steel Louvers:
          ** NOTE TO SPECIFIER ** Delete screening options not required.
          1.Bird Screening: Galvanized steel, 1/2 inch (13 mm) square mesh, 0.041 inch (1.04 mm) wire.
          2.Bird Screening: Stainless steel, 1/2 inch (13 mm) square mesh, 0.047 inch (1.19 mm) wire.
          3.Insect Screening: Aluminum, 18 by 14 (1.4 by 1.8 mm) mesh, 0.011 inch (0.28 mm) wire.
          4.Insect Screening: Stainless steel, 18 by 18 (1.4 by 1.4 mm) mesh, 0.009 inch (0.23 mm) wire.
          ** NOTE TO SPECIFIER ** Delete if not required.
 
          D.Louver Screening for Stainless-Steel Louvers:
          ** NOTE TO SPECIFIER ** Delete screening options not required.
          1.Bird Screening: Stainless steel, 1/2 inch (13 mm) square mesh, 0.047 inch (1.19 mm) wire.
          2.Insect Screening: Stainless steel, 18 by 18 (1.4 by 1.4 mm) mesh, 0.009 inch (0.23 mm) wire.
          ** NOTE TO SPECIFIER ** Delete if not required.
 
          2.7BLANK-OFF PANELS
          ** NOTE TO SPECIFIER ** Delete if not required.
 
          A.Uninsulated, Blank-Off Panels: Metal sheet attached to back of louver.
          ** NOTE TO SPECIFIER ** Delete materials not required.
          1.Material: Aluminum sheet for aluminum louvers, not less than 0.050 inch (1.2 mm) nominal thickness.
          2.Material: Galvanized-steel sheet for galvanized-steel louvers, not less than 0.040 inch (1.02 mm) nominal thickness.
          3.Material: Galvanized-steel sheet for galvanized-steel louvers, not less than 0.052 inch (1.32 mm) nominal thickness.
          4.Material: Stainless-steel sheet for stainless-steel louvers, not less than 0.038 inch (0.95 mm) nominal thickness.
          5.Material: Stainless-steel sheet for stainless-steel louvers, not less than 0.050 inch (1.27 mm) nominal thickness.
          ** NOTE TO SPECIFIER ** Delete finish not required.
          6.Panel Finish: Same finish applied to louvers.
          7.Panel Finish: Same finish type applied to louvers, but black color.
          ** NOTE TO SPECIFIER ** Delete attachment type not required.
          8.Attachment: Attach blank-off panels with clips.
          9.Attachment: Attach blank-off panels with sheet metal screws.
          10.Attachment: Attach blank-off panels with _____.
          ** NOTE TO SPECIFIER ** Delete if not required.
 
          B.Insulated, Blank-Off Panels: Laminated panels consisting of an insulating core surfaced on back and front with metal sheets and attached to back of louver.
          ** NOTE TO SPECIFIER ** Delete thicknesses not required.
          1.Thickness: 1 inch (25 mm).
          2.Thickness: 2 inches (50 mm).
          3.Thickness: 4 inches (100 mm).
          ** NOTE TO SPECIFIER ** Delete facing sheets not required.
          4.Metal Facing Sheets: Aluminum sheet, not less than 0.032 inch (0.81 mm) nominal thickness.
          5.Metal Facing Sheets: Galvanized-steel sheet, not less than 0.028 inch (0.71 mm) nominal thickness.
          6.Metal Facing Sheets: Stainless-steel sheet, not less than 0.031 inch (0.79 mm) nominal thickness.
          ** NOTE TO SPECIFIER ** Delete insulating cores not required.
          7.Insulating Core: Rigid, glass-fiber insulation.
          8.Insulating Core: Two-part polyurethane foam.
          9.Insulating Core: Rigid, glass-fiber insulation or two-part polyurethane foam.
          10.Insulating Core: _____.
          ** NOTE TO SPECIFIER ** Delete edge treatment types not required.
          11.Edge Treatment: Trim perimeter edges of blank-off panels with louver manufacturer's standard extruded aluminum channel frames, not less than 0.080 inch (2.03 mm) nominal thickness, with corners mitered and with same finish as panels.
          12.Edge Treatment: Trim perimeter edges of blank-off panels with louver manufacturer's standard channel frames, with corners mitered and with same finish as panels.
          13.Edge Treatment: ______.
          14.Seal perimeter joints between panel faces and louver frames with gaskets or sealant.
          ** NOTE TO SPECIFIER ** Delete finish not required.
          15.Panel Finish: Same finish applied to louvers.
          16.Panel Finish: Same finish type applied to louvers, but black color.
          ** NOTE TO SPECIFIER ** Delete attachment type not required.
          17.Attachment: Attach blank-off panels with clips.
          18.Attachment: Attach blank-off panels with sheet metal screws.
          19.Attachment: Attach blank-off panels with _____.
 
          2.8MATERIALS
          ** NOTE TO SPECIFIER ** Delete materials not required.
 
          A.Aluminum Extrusions: ASTM B 221, Alloy 6063-T5, T-52, or T6.
 
          B.Aluminum Sheet: ASTM B 209, Alloy 3003 or 5005 with temper as required for forming, or as otherwise recommended by metal producer for required finish.
 
          C.Galvanized Sheet Steel: ASTM A 653/A 653M, G60 (Z180) zinc coating, mill phosphatized.
 
          D.Galvanized Sheet Steel: ASTM A 653/A 653M, G90 (Z275) zinc coating, mill phosphatized.
 
          E.Stainless Steel Sheet: ASTM A 240/ASTM 240M, Type 304, No. 2B finish.
 
          F.Stainless Steel Sheet: ASTM A 240/ASTM 240M, Type 304, No. 2D finish.
 
          G.Stainless Steel Sheet: ASTM A 240/ASTM 240M, Type 304, No. 4 finish, with grain running parallel to length of blades and frame members.
 
          H.Stainless Steel Sheet: ASTM A 240/ASTM 240M, Type 304, No. 4 finish, with grain running perpendicular to length of blades and frame members.
 
          I.Stainless Steel Sheet: ASTM A 240/ASTM 240M, Type 304, No. 4 finish, with grain running perpendicular to length of blades and parallel to length frame members.
 
          J.Stainless Steel Sheet: ASTM A 240/ASTM 240M, Type 304, No. 6 finish.
 
          K.Fasteners: Use types and sizes to suit unit installation conditions.
          ** NOTE TO SPECIFIER ** Delete screw types not required.
          1.Use hex-head screws for exposed fasteners unless otherwise indicated.
          2.Use tamper-resistant screws for exposed fasteners unless otherwise indicated.
          3.For fastening aluminum, use aluminum or 300 series stainless-steel fasteners.
          4.For fastening galvanized steel, use hot-dip galvanized steel or 300 series stainless-steel fasteners.
          5.For fastening stainless steel, use 300 series stainless-steel fasteners.
          6.For color-finished louvers, use fasteners with heads that match color of louvers.
 
          L.Post-Installed Fasteners for Concrete and Masonry: Torque-controlled expansion anchors, made from stainless-steel components, with capability to sustain, without failure, a load equal to 4 times the loads imposed, for concrete, or 6 times the load imposed for masonry, as determined by testing according to ASTM E 488, conducted by a qualified independent testing agency.
 
          M.Bituminous Paint: Cold-applied asphalt emulsion complying with ASTM D 1187.
 
          2.9FABRICATION
 
          A.Factory assemble louvers to minimize field splicing and assembly. Disassemble units as necessary for shipping and handling limitations. Clearly mark units for reassembly and coordinated installation.
 
          B.Vertical Assemblies: Where height of louver units exceeds fabrication and handling limitations, fabricate units to permit field-bolted assembly with close-fitting joints in jambs and mullions, reinforced with splice plates.
          ** NOTE TO SPECIFIER ** Delete assembly types not required.
          1.Continuous Vertical Assemblies: Fabricate units without interrupting blade-spacing pattern unless horizontal mullions are indicated.
          2.Continuous Vertical Assemblies: Fabricate units without interrupting blade-spacing pattern where indicated.
          3.Horizontal Mullions: Provide horizontal mullions at joints unless continuous vertical assemblies are indicated.
          4.Horizontal Mullions: Provide horizontal mullions at joints where indicated.
          ** NOTE TO SPECIFIER ** Select one of two options below. First option may not be possible with some designs. Delete option not required.
 
          C.Maintain equal louver blade spacing, including separation between blades and frames at head and sill, to produce uniform appearance.
 
          D.Maintain equal louver blade spacing to produce uniform appearance.
 
          E.Fabricate frames, including integral sills, to fit in openings of sizes indicated, with allowances made for fabrication and installation tolerances, adjoining material tolerances, and perimeter sealant joints.
          ** NOTE TO SPECIFIER ** Delete frame types not required.
          1.Frame Type: Channel, unless otherwise indicated.
          2.Frame Type: Exterior flange, unless otherwise indicated.
 
          F.Include supports, anchorages, and accessories required for complete assembly.
          ** NOTE TO SPECIFIER ** Coordinate with Drawings and product descriptions.
 
          G.Provide vertical mullions of type and at spacings indicated, but not more than is recommended by manufacturer, or 60 inches (1524 mm) o.c., whichever is less.
          ** NOTE TO SPECIFIER ** Select one of first two mullion types if louvers require continuous appearance. Delete mullion types not required.
          1.Fully Recessed Mullions: Where indicated, provide mullions fully recessed behind louver blades. Where length of louver exceeds fabrication and handling limitations, fabricate with close-fitting blade splices designed to permit expansion and contraction.
          2.Continuous Line Mullions: Where indicated, provide mullions partly recessed behind louver blades so louver blades appear continuous. Where length of louver exceeds fabrication and handling limitations, fabricate with interlocking split mullions and close-fitting blade splices designed to permit expansion and contraction.
          ** NOTE TO SPECIFIER ** Delete exterior corners if not required. If required, select options required.
          3.Exterior Corners: Prefabricated corner units.
          a.Blades: Mitered and welded.
          b.Mullions at Corners with a formed cover plate.
          ** NOTE TO SPECIFIER ** Indicated subsill and extended sill locations on Drawings. Delete options not required.
 
          H.Provide subsills made of same material as louvers for recessed louvers.
 
          I.Provide subsills made of same material as louvers or extended sills for recessed louvers.
 
          J.Provide extended sills for recessed louvers.
 
          K.Join frame members to each other and to fixed louver blades with filet welds unless otherwise indicated or size of louver assembly makes bolted connections between frame members necessary:
          ** NOTE TO SPECIFIER ** Delete options not required.
          1.Welds concealed from view.
          2.Threaded fasteners may be used, as standard with louver manufacturer.
          ** NOTE TO SPECIFIER ** Delete if not required.
 
          2.10ALUMINUM FINISHES
 
          A.Finish louvers after assembly.
          ** NOTE TO SPECIFIER ** Delete finish options not required.
 
          B.Clear Anodic Finish: AAMA 611, AA-M12C22A41, Class I, 0.018 mm or thicker.
 
          C.Clear Anodic Finish: AAMA 611, AA-M12C22A31, Class II, 0.010 mm or thicker.
 
          D.Color Anodic Finish:
          ** NOTE TO SPECIFIER ** Delete thickness not required.
          1.Thickness: AA-M12C22A42/A44, Class I, 0.018 mm.
          2.Thickness: AA-M12C22A32/A34, Class II, 0.010 mm.
          ** NOTE TO SPECIFIER ** Delete colors not required.
          3.Color: Champagne.
          4.Color: Light bronze.
          5.Color: Medium bronze.
          6.Color: Dark bronze.
          7.Color: Black.
          8.Color: _____.
 
          E.Conversion-Coated Finish: AA-C12C42 (Chemical Finish: cleaned with inhibited chemicals; Chemical Finish: acid-chromate-fluoride-phosphate conversion coating).
          ** NOTE TO SPECIFIER ** Use paragraph below for conversion-coated finish if extended delay in field painting is anticipated.
 
          F.Conversion-Coated and Factory-Primed Finish: AA-C12C42R1x (Chemical Finish: cleaned with inhibited chemicals; Chemical Finish: acid-chromate-fluoride-phosphate conversion coating; Organic Coating: as specified below).
          ** NOTE TO SPECIFIER ** Delete primer option not required.
          1.Primer: Organic Coating: Air-dried primer of not less than 2-mil (0.05-mm) dry film thickness.
          2.Primer: _____.
 
          G.Baked-Enamel or Powder-Coat Finish: AAMA 2604 except with a minimum dry film thickness of 2.4 mils (0.04 mm). Comply with coating manufacturer's written instructions for cleaning, conversion coating, and applying and baking finish.
          ** NOTE TO SPECIFIER ** Delete options not required.
          1.Color and Gloss: As indicated by manufacturer's designations.
          2.Color and Gloss: Match Architect's sample.
          3.Color and Gloss: As selected by Architect from manufacturer's full range.
          4.Color and Gloss: ______.
 
          H.High-Performance Organic Finish: Two-coat fluoropolymer finish. Prepare, pretreat, and apply coating to exposed metal surfaces to comply with coating and resin manufacturers' written instructions.
          ** NOTE TO SPECIFIER ** Delete options not required.
          1.AAMA 2604 compliant.
          2.AAMA 2605 compliant.
          3.Containing not less than 50 percent PVDF resin by weight in color coat.
          4.Containing not less than 70 percent PVDF resin by weight in color coat.
          5.Color and Gloss: As indicated by manufacturer's designations.
          6.Color and Gloss: Match Architect's sample.
          7.Color and Gloss: As selected by Architect from manufacturer's full range.
          8.Color and Gloss: ______.
 
          I.High-Performance Organic Finish: Three-coat fluoropolymer finish complying with AAMA 2605. Prepare, pretreat, and apply coating to exposed metal surfaces to comply with coating and resin manufacturers' written instructions.
          ** NOTE TO SPECIFIER ** Delete options not required.
          1.Containing not less than 50 percent PVDF resin by weight in color coat.
          2.Containing not less than 70 percent PVDF resin by weight in color coat.
          3.Color and Gloss: As indicated by manufacturer's designations.
          4.Color and Gloss: Match Architect's sample.
          5.Color and Gloss: As selected by Architect from manufacturer's full range.
          6.Color and Gloss: ______.
          ** NOTE TO SPECIFIER ** Delete if not required.
 
          2.11GALVANIZED STEEL SHEET FINISHES
 
          A.Finish louvers after assembly.
 
          B.Surface Preparation: Clean surfaces with nonpetroleum solvent so surfaces are free of oil and other contaminants. After cleaning, apply a conversion coating compatible with the organic coating to be applied over it. Clean welds, mechanical connections, and abraded areas and repair according to ASTM A 780.
 
          C.Baked-Enamel or Powder-Coat Finish: Immediately after cleaning and pretreating, apply manufacturer's standard two-coat, baked-on finish consisting of prime coat and thermosetting topcoat, with a minimum dry film thickness of 2 mils (0.05 mm).
          ** NOTE TO SPECIFIER ** Delete options not required.
          1.Color and Gloss: As indicated by manufacturer's designations.
          2.Color and Gloss: Match Architect's sample.
          3.Color and Gloss: As selected by Architect from manufacturer's full range.
          4.Color and Gloss: ______.
          ** NOTE TO SPECIFIER ** Delete if not required.
 
          2.12STAINLESS STEEL SHEET FINISHES
 
          A.Repair sheet finish by grinding and polishing irregularities, weld spatter, scratches, and forming marks to match surrounding finish.
 
          PART 3EXECUTION
 
          3.1EXAMINATION
 
          A.Do not begin installation until substrates have been properly constructed and prepared.
 
          B.If substrate preparation is the responsibility of another installer, notify Architect in writing of unsatisfactory preparation before proceeding.
 
          3.2PREPARATION
 
          A.Clean surfaces thoroughly prior to installation.
 
          B.Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
 
          3.3INSTALLATION
 
          A.Install in accordance with manufacturer's instructions, approved submittals and in proper relationship with adjacent construction.
 
          B.Locate and place louvers level, plumb, and at indicated alignment with adjacent work.
 
          C.Use concealed anchorages where possible. Provide brass or lead washers fitted to screws where required to protect metal surfaces and to make a weathertight connection.
 
          D.Form closely fitted joints with exposed connections accurately located and secured.
 
          E.Provide perimeter reveals and openings of uniform width for sealants and joint fillers, as indicated.
 
          F.Protect unpainted galvanized and nonferrous-metal surfaces that are in contact with concrete, masonry, or dissimilar metals from corrosion and galvanic action by applying a heavy coating of bituminous paint or by separating surfaces with waterproof gaskets or nonmetallic flashing.
 
          G.Install concealed gaskets, flashings, joint fillers, and insulation as louver installation progresses, where weathertight louver joints are required.
 
          3.4CLEANING AND PROTECTION
 
          A.Clean products in accordance with the manufacturers recommendations.
 
          B.Touch-up, repair or replace damaged products before Substantial Completion.
 
         
END OF SECTION