SECTION 13 31 23

TENSIONED FABRIC STRUCTURES

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PART 1    GENERAL
1.1	SECTION INCLUDES
A.	Tensile Facade Systems.
B.	Tensioned Fabric Structures.
1.2	RELATED REQUIREMENTS
A.	Tensile Facade Systems:
1.	Architect's drawings indicate design intent with respect to sizes, shapes, and configurations of the tensile facade system.
2.	Manufacturer is responsible for structural design, detailing, fabrication, supply, and installation of the Work specified herein. Include the following items:
a.	Architectural tensile facade system as indicated on the Drawings and Specifications.
b.	Perimeter, catenary, and sectionalized aluminum tension frame system with tension clips.
c.	Structural steel, struts, and beams as indicated on the Drawings.
d.	Specifications for finishes, covers, and fasteners.
3.	Manufacturer supplies and installs each component and accessory required for a complete tensile facade system, whether or not specifically shown or specified.
4.	Specification intent is to establish the Manufacturer's undivided, single-source responsibility for the Work specified herein.
B.	Tensioned Fabric Structures:
1.	Architect's drawings indicate design intent with respect to sizes, shapes, and configurations of the tensioned fabric structure.
2.	Manufacturer is responsible for structural design, detailing, fabrication, supply, and installation of the Work specified herein. Include the following items:
a.	Architectural membrane as indicated on the Drawings and Specifications.
b.	Perimeter, catenary, and sectionalized aluminum clamping system.
c.	Structural steel, masts, trusses, struts, and beams as indicated on the Drawings.
d.	Cables and fittings.
e.	Fasteners and gasketing.
3.	Manufacturer supplies and installs each component and accessory required for a complete tensioned fabric structure whether or not specifically shown or specified.
4.	Specification intent is to establish the Manufacturer's undivided, single-source responsibility for the Work specified herein.
5.	Element sizes, material strengths, forces, and quantities shown on the contract documents are to be taken as a developed concept. Final structural analysis and design are the responsibility of the Manufacturer. Manufacturer is responsible at the time of bid to determine any additional costs related to their design and member sizing for the tensioned fabric structure.
1.3	RELATED SECTIONS
A.	Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 - General Requirements, apply to this Section.
B.	Section 03 30 00 - Cast-in-Place Concrete for concrete footings, posts of tensioned fabric structures and concrete caissons, and for posts of tensile facade system structural supports.
C.	Section 05 12 00 - Structural Steel Framing for steel structure supporting tensioned fabric structures and tensile facade systems.
D.	Section 05 12 13 - Architecturally-Exposed Structural Steel Framing for steel structure supporting tensioned fabric structures and tensile facade systems.
E.	Division 09 - Finishes.
F.	Division 10 - Specialties.
1.4	REFERENCES
A.	American Society of Civil Engineering (ASCE):
1.	ASCE/SEI 7-22 - Minimum Design Loads and Associated Criteria for Buildings and Other Structures.
B.	American Welding Society (AWS):
1.	AWS D1.1/D1.1M:2025: Structural Welding Code - Steel.
2.	AWS D1.2/D1.2M:2026: Structural Welding Code - Aluminum.
C.	Association for Materials Protection and Performance (AMPP):
1.	SSPC-SP 10: SSPC Painting Manual, Volume 2, Systems and Specifications.
D.	ASTM International (ASTM):
1.	ASTM A29/A29M-23: Standard Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought.
2.	ASTM A36/A36M-19: Standard Specification for Carbon Structural Steel.
3.	ASTM A123/A123M-24: Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products.
4.	ASTM A153/A153M-23: Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware.
5.	ASTM A276/A276M-25: Standard Specification for Stainless Steel Bars and Shapes.
6.	ASTM A312/A312M-25: Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes.
7.	ASTM A492-95(2019): Standard Specification for Stainless Steel Rope Wire.
8.	ASTM A500/A500M-23: Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes.
9.	ASTM A554-26: Standard Specification for Welded Stainless Steel Mechanical Tubing.
10.	ASTM A572/A572M-25: Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel.
11.	ASTM A603-19: Standard Specification for Metallic-Coated Steel Structural Wire Rope.
12.	ASTM A666/A666M-24: Standard Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar.
13.	ASTM A743/A743M-21: Standard Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application.
14.	ASTM B221-21: Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes.
15.	ASTM E108-25: Standard Test Methods for Fire Tests of Roof Coverings.
16.	ASTM E136-26: Standard Test Method for Assessing Combustibility of Materials Using a Vertical Tube Furnace at 750 Degrees C.
17.	ASTM E84-26a: Standard Test Method for Surface Burning Characteristics of Building Materials.
E.	California Code of Regulations (CCR):
1.	Title 19. Public Safety - Division 1. State Fire Marshal.
F.	International Code Council (ICC):
1.	International Building Code (IBC).
G.	National Fire Protection Association (NFPA):
1.	NFPA 701: Standard Methods of Fire Tests for Flame Propagation of Textiles and Films.
H.	Occupational Safety and Health Administration (OSHA):
1.	Fall Protection Certification and Training.
2.	Safety and Health Fundamentals Certificate Program for Construction.
I.	U.S. Green Building Council (USGBC):
1.	Environmental Product Declaration (EPD).
2.	Leadership in Energy and Environmental Design (LEED) v5.
1.5	DEFINITIONS
A.	DFT: Dry film thickness.
B.	Tensile Facade System: Facade panel system consisting of a tensile membrane supported by an extruded aluminum frame and retained by a metal bracket and clip system.
C.	Tensioned Fabric Structure: Tensioned membrane-covered canopy fabric supported by a metal frame and cable system anchored to a ground foundation. The fabric exhibits low elongation characteristics under tension and is capable of anticlastic configuration. Flat or mono-axially curved fabric application configurations are not allowed.
1.6	ACTION SUBMITTALS
A.	Comply with provisions of Section 01 33 00 - Submittal Procedures.
B.	Product Data: Include the following:
1.	Manufacturer's styles, material descriptions, construction details, fabrication details, dimensions of individual components and profiles, hardware, fittings, mounting accessories, features, and finishes.
2.	Rated capacities, light transmissions, and operating characteristics of furnished specialties and accessories.
3.	Manufacturer's preparation instructions and recommendations.
4.	Manufacturer's storage and handling requirements.
5.	Manufacturer's installation requirements and methods.
C.	Shop Drawings:
1.	Include details of materials, construction, and finishes.
2.	Include relationships with adjacent construction.
3.	Tensile Facade Systems:
a.	Include plans, elevations, sections, mounting heights, and frame assembly details.
b.	Determine preliminary support frame member sizes with wall thicknesses.
c.	Determine preliminary footing layout and foundation design with final sizes, shapes, and depths.
d.	Include fabric attachment hardware and details.
e.	Include details of fabric panel anchorage and connection details.
f.	Include dimensions for length of spans, seam locations, and interferences with building construction.
4.	Tensioned Fabric Structures:
a.	Include plans, elevations, sections, mounting heights, and frame assembly details.
b.	Determine preliminary member sizes with wall thicknesses. 
c.	Determine preliminary footing layout and foundation design with final depths. 
d.	Include fabric attachment hardware and details. 
e.	Identify and include direction, details, and locations of fabric seams. 
f.	Include details of fabric membrane dimensions indicating length of spans, sag in curvature, and actual shaded area.
D.	Samples for Initial Selection: Electronic file of available frame finish colors.
E.	Verification Samples:
1.	Fabric: Deliver three (3) 8.5 x 11 inch (215.9 x 279.4 mm) samples of fabric as selected by the Architect.
2.	Frame Finish: Deliver three (3) sample chips, not less than 2 x 3 inches (50.8 x 76.2 mm) in size.
F.	Delegated Design Submittals:
1.	Calculations:
a.	Include engineering calculations showing wind load requirements of the local Building Department with fastener and erection details.
b.	Signed and sealed by a Professional Engineer licensed in the same State as the project location.
2.	Engineering Drawings: Signed and sealed by a Professional Engineer licensed in the same state as the project location.
a.	Include plans, elevations, sections, mounting heights, and frame assembly details.
b.	Include frame member sizes and required wall thicknesses.
c.	Identify welding requirements.
d.	Detail bolted or pinned connections for frame assembly.
e.	Identify required sizes of bolts, pins, plates, and tubing.
f.	Verify and confirm fabric meets minimum engineering performance requirements.
g.	Detail fabric attachment methods and identify thicknesses of each membrane plates, clamps, and other attachment components.
h.	Identify each cable size and pretension requirement.
i.	Deliver anchor bolt plans before foundation work begins. Include location, diameter, and projection of anchor bolts required to attach the tensioned fabric structures to foundation. Indicate column reactions at each location.
G.	Sustainable Design Submittals:
1.	Product Data for LEED Building Product Selection and Procurement Credit:
a.	For products containing recycled content, deliver documentation indicating percentages by weight of post-consumer and pre-consumer recycled content.
1)	Documentation must be supported by Manufacturer's inventory or a product-specific EPD.
2)	Include a statement indicating the cost for each product, excluding labor and overhead, to facilitate project-wide sustainability calculations.
b.	For products claiming the Local Sourcing Bonus, deliver documentation indicating the cost for each product.
1)	Include a statement verifying the location of extraction, manufacture, and point of purchase.
2)	Include distance to the Project site for each material to verify it falls within the required 100 mile (160km) radius.
H.	Schedule of Values: Deliver within two (2) weeks of project award.
1.7	INFORMATIONAL SUBMITTALS
A.	Qualification Data: For Manufacturer, Installers, Welders, and Professional Engineer.
B.	Welding certificates.
C.	Fabric manufacturer's warranty.
1.8	CLOSEOUT SUBMITTALS
A.	Operation and Maintenance Manuals:
1.	Tensile Facade Systems:
a.	Maintenance Data:
1)	Methods for maintaining tensile facade system. 
2)	Precautions for cleaning materials and methods detrimental to fabrics, finishes, and performance.
2.	Tensioned Fabric Structures:
a.	Maintenance Data:
1)	Methods for maintaining fabrics and finishes.
2)	Precautions for cleaning materials and methods detrimental to fabrics, finishes, and performance.
1.9	QUALITY ASSURANCE
A.	Qualifications:
1.	Manufacturer Qualifications: Company specializing in manufacturing products specified in this Section with a minimum of five (5) years documented experience.
2.	Installer Qualifications: Company specializing in performing Work of this Section with minimum two (2) years documented experience with projects of similar scope and complexity.
3.	Source Limitations: Obtain system components from a single source manufacturer.
4.	Tensile Facade Systems:
a.	Manufacturer's Fabrication Qualifications: Manufacturer employing skilled workers who custom fabricate tensile facade systems similar in size and complexity to those required for this Project with a successful record of in-service performance. 
1)	Manufacturer's responsibilities include the fabrication of tensile facade system and providing professional engineering services.
2)	Manufacturer's engineering services must utilize Finite Element Analysis software that performs fabric form finding and includes fabric material properties and pre-stress characteristics.
3)	Manufacturer must have complete a minimum of five (5) successful projects similar in size and specified fabric material.
4)	Manufacturer must have been in continuous operation as a professional tensile facade system manufacturer for minimum of ten (10) years prior to this Project.
5)	Manufacturer must be a Made-in-America in-house manufacturing facility for both frame and fabric components.
b.	Installer Qualifications:
1)	Must be a licensed contractor with required insurance to legally perform work in the State where the tensile facade system is installed. 
2)	Obtain insurance coverage required by the Project.
c.	Welding Qualifications: Qualify personnel and procedures according to the following:
1)	AWS D1.1/D1.1M: Structural Welding Code - Steel.
2)	AWS D1.2/D1.2M: Structural Welding Code - Aluminum.
5.	Tensioned Fabric Structures:
a.	Manufacturer Qualifications: Manufacturer employing skilled workers who custom-fabricate tensioned fabric structures similar to those required for this Project and whose products have a record of successful in-service performance.
1)	Manufacturer must be an active member of Advanced Textiles Association (ATA) and Fabric Structures Association (FSA).
2)	Manufacturer's responsibilities include fabricating and installing tensioned fabric structures and providing professional engineering services needed to assume engineering responsibility.
3)	Manufacturer's engineering services must utilize Finite Element Analysis software that performs fabric form finding and includes fabric material properties and prestress characteristics.
4)	Manufacturer must have a minimum of ten (10) successful projects of similar size and similar specified fabric material.
5)	Manufacturer must have been in continuous operation as a professional tensioned fabric structure manufacturer for minimum of ten (10) years prior to this Project. 
6)	Manufacturer must be an American owned company. 
7)	Manufacturer must have an in-house Made-in-America manufacturing facility for both frame and fabric membrane components. 
8)	Manufacturer must have in-house installers with 10 hours of OSHA training certificates. 
b.	Installer Qualifications:
1)	Must be a licensed contractor with required insurance to legally perform work in the State where the tensile facade system is installed. 
2)	Obtain insurance coverage required by the Project. 
c.	Welding Qualifications: Qualify personnel and procedures according to the following:
1)	AWS D1.1/D1.1M: Structural Welding Code - Steel.
2)	AWS D1.2/D1.2M: Structural Welding Code - Aluminum.
B.	Certifications:
1.	Supervisors: Completed 30 hours of OSHA Safety and Health Fundamentals Certificate Program for Construction.
2.	Installers: First aid training certified.
C.	Mock-Ups: Construct a mock-up with actual materials in sufficient time for Architect's review and to not delay construction progress. Locate mock-up as acceptable to Architect and construct temporary foundations and support.
1.	Demonstrate workmanship quality and visual appearance via mock-up.
2.	If mock-up is not acceptable, rebuild mock-up until satisfactory results are achieved.
3.	Retain mock-up during construction as a standard for comparison with completed work.
4.	Do not alter or remove mock-up until work is completed or removal is authorized.
1.10	PRE-INSTALLATION CONFERENCE
A.	Convene a conference approximately two weeks before scheduled commencement of the Work. Attendees include Architect, Contractor, and trades involved. Agenda to include schedules, responsibilities, critical path items, and approvals.
1.11	DELIVERY, 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.
1.12	PROJECT CONDITIONS
A.	Environmental Conditions: Maintain temperature, humidity, and ventilation within manufacturer's recommended limits for optimum results. Do not install products under environmental conditions outside manufacturer's recommended limits.
B.	Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit installation in exterior locations. Perform installation according to manufacturer's written instructions and warranty requirements.
C.	Field Measurements:
1.	When installation is indicated to fit to other work, verify dimensions by Project Site field measurements before fabrication starts. Include measurements on Shop Drawings and deliver to Architect for approval.
2.	Allow clearances for fenestration operation throughout the entire operating range. Notify Architect of discrepancies immediately.
3.	Coordinate fabrication schedule with construction progress to avoid any delays to the Project.
1.13	WARRANTY
A.	Special Warranty: Manufacturer agrees to repair or replace components that fail in material or workmanship within one (1) year from the date of Substantial Completion.
1.	Failures include, but are not limited to:
a.	Structural or framework failures.
b.	Fabric deterioration including any seam failure.
c.	Deterioration of metals, metal finishes, and any other materials beyond normal weathering.
B.	Warranty Period for Fabrics: Manufacturer's Limited Warranty.
C.	Warranty Period for Cables, Securement Devices, and Accessories: One (1) year from date of Substantial Completion.
PART 2    PRODUCTS
2.1	MANUFACTURERS
A.	Acceptable Manufacturer: Eide Industries, Inc., which is located at:<BR />16215 Piuma Ave.<BR />Cerritos, CA 90703-1528<BR />Toll Free Tel: 800-422-6827<BR />Tel: 562-402-8335<BR />Fax: 562-924-2233<BR />Email: request info (info@eideindustries.com);Web: https://www.eideindustries.com 
B.	Substitutions: Not permitted.
C.	Requests for substitutions will be considered per the provisions of Section 01 25 00 - Substitution Procedures. Requests must include an engineering analysis and pricing information. Engineering analysis must include the following:
1.	Finite Element Analysis under various load cases.
2.	Fabric form finding of membrane.
3.	Adequate membrane gradient under load displacement to allow water runoff.
4.	Frame member and cable sizing.
5.	Footing reaction loads.
2.2	TENSILE FACADE SYSTEMS
A.	Performance and Design Requirements:
1.	Regulatory Requirements: Comply with requirements of Authorities Having Jurisdiction (AHJ) for the Project location.
a.	Building Code Criteria: Comply with International Building Code requirements.
b.	Local Building Codes: Comply with requirements and respective loading criteria for snow loads, live loads, dead loads, wind speed, and seismic loads.
2.	Delegated Design:
a.	Engage a qualified Professional Engineer to design tensile facade system.
b.	Design Engineering requirements include, but are not limited to, the following: 
1)	Prepare structural design drawings defining the precise interface geometry determination, reaction loads imposed on structural steel framing, anchoring loads, connection details, interfaces, and seam layouts.
c.	Engineering of Tensile Facade System: Fittings and accessories must withstand structural loads indicated. Determine allowable design working stresses of railing materials based on the following:
1)	Steel: 72 percent of minimum yield strength.
2)	Stainless Steel: 60 percent of minimum yield strength.
3)	Aluminum: Lesser of minimum yield strength divided by 1.65 or minimum ultimate tensile strength divided by 1.95.
3.	Corrosion Control: Prevent galvanic action and other forms of corrosion by insulating metals and other materials from direct contact with incompatible materials.
4.	Life Safety: Detail the tensile facade system such that no life safety issues are created if fabric membranes or associated parts are lost. System must not rely on any membrane for structural stability.
5.	Structural Performance: Tensile facade system must withstand effects of gravity loads and the following loads per requirements of ASCE/SEI 7:
a.	Wind Loads: To be determined by Manufacturer's Engineer of Record.
b.	Live Loads: To be determined by Manufacturer's Engineer of Record.
c.	Seismic Loads: To be determined by Manufacturer's Engineer of Record.
6.	Thermal Movements: Allowance for thermal movements from ambient and surface temperature changes.
a.	Material Surface Temperature Change: 22 to 158 degrees F (5.56 to 70 degrees C).
B.	Facade Fabric Materials:
1.	Performance Requirements:
a.	Fire-Test-Response Characteristics:
1)	Flame-Resistance Ratings: Passes NFPA 701.
2)	Meets or exceeds requirements of CCR, Title 19. Public Safety - Division 1. State Fire Marshal.
2.	Acceptable Fabric Manufacturer: Serge Ferrari North America, Inc. which is located at: 504 Hillsboro Technology Drive, Deerfield Beach, FL 33441; Tel: 954-942-3600; Web: www.sergeferrari.com.
3.	Facade Fabric:
a.	Material: Serge Ferrari Frontside Safe P 35.
b.	Material: Serge Ferrari Frontside View 381.
c.	Material: Serge Ferrari Soltis Horizon 86.
d.	Material: Serge Ferrari Soltis Perform 92.
e.	Color: To be selected from the fabric manufacturer's range of available colors.
C.	Tensile Facade System Frame, Fittings, and Accessories:
1.	General: Include standard accessories from Manufacturer as specified. Factory fabricate and finish accessories to greatest extent possible using Manufacturer's standard procedures and processes. Use indicated profiles including dimensional and structural requirements.
2.	Fabric Retention Frame: Constructed of extruded 6061-T6 aluminum alloy conforming to ASTM B221.
3.	Support Frame Material: Constructed of cold rolled carbon steel unless otherwise specified by the Architect in Drawings.
a.	Steel and Iron:
1)	Bars: Carbon steel, hot-wrought, Grade 1010; ASTM A29/A29M.
2)	Plates, Shapes, and Bars: Carbon structural steel conforming to ASTM A36, or high-strength low-alloy columbium-vanadium structural steel conforming to ASTM A572, Grade 50, as indicated on the Drawings.
3)	Steel Tubing:
a)	Structural Tubing: ASTM A500/A500M, Grade B or C; cold-formed, welded or seamless.
b)	Mechanical Tubing: ASTM A513/A513M, Type 1 Hot Rolled or Type 5 Drawn Over Mandrel; electric-resistance-welded carbon steel.
4.	Aluminum Support Extrusions:
a.	Include Manufacturer's job specific parts list.
b.	Extruded Bars and Shapes: Aluminum alloy 6063-T5 or T52; ASTM B221.
5.	Metal Surface Appearance: Finish with smooth seamless surfaces and without seam marks, roller marks, rolled trade names, stains, discolorations, or blemishes.
D.	Tensile Facade Frame Finish:
1.	Frame Finish: Polyester powder coat unless otherwise specified by the Architect on Drawings.
a.	Polyester Powder Coat Finish:
1)	Commercial blast clean surface in accordance to SSPC-SP 10.
2)	Apply polyester powder coat of 3 mils minimum thickness.
3)	Color: As selected from manufacturer's available stock colors.
b.	Three Part Paint Finish for Corrosive Environments:
1)	Commercial blast clean surface in accordance to SSPC-SP 10.
2)	Primer: One (1) coat of PPG Dimecoat 9 at 3.0 mils dry DFT minimum.
3)	Paint: One (1) coat of PPG Amerlock 2 at 3.0 mils DFT minimum.
4)	Paint: One (1) coat of PPG PSX 700 at 3.0 mils DFT minimum.
5)	Total Thickness: 9.0 mils DFT minimum.
6)	Color: As selected from manufacturer's available stock colors.
2.3	TENSIONED FABRIC STRUCTURES
A.	Performance and Design Requirements:
1.	Regulatory Requirements: Comply with requirements of Authorities Having Jurisdiction for the Project location.
a.	Building Code Criteria: Comply with International Building Code requirements.
b.	Local Building Codes: Comply with requirements and respective loading criteria for snow loads, live loads, dead loads, wind speed, and seismic loads.
2.	Delegated Design:
a.	Engage a qualified professional engineer to design tensioned fabric structure. 
b.	Design Engineering requirements include, but are not limited to, the following:
1)	Prepare structural design drawings defining the precise interface geometry determination, reaction loads imposed on structural steel framing, anchoring loads, connection details, interfaces, and seam layouts.
2)	Structural calculations for the tensioned fabric structure include:
a)	Large deflection numerical shape generation to insure a stable, uniformly stressed, three dimensionally curved shape that is in static equilibrium with the internal prestress forces and is suitable to resist each applied load.
b)	Large deflection finite element method structural analysis of the membrane system under each applicable wind and seismic load.
c)	Connection design including bolts, welds, and ancillary member sizing.
d)	Biaxial fabric test specification, interpretation, and fabric compensation determination.
e)	Accurate generation of the two dimensional compensated fabric templates required to generate the three dimensional equilibrium shape.
c.	Engineering of Tensioned Fabric Structure: Fittings and accessories must withstand structural loads indicated. Determine allowable design working stresses of railing materials based on the following:
1)	Steel: 72 percent of minimum yield strength.
2)	Stainless Steel: 60 percent of minimum yield strength.
3)	Aluminum: Lesser of minimum yield strength divided by 1.65 or minimum ultimate tensile strength divided by 1.95.
3.	Control of Corrosion: Prevent galvanic action and other forms of corrosion by insulating metals and other materials from direct contact with incompatible materials.
4.	Life Safety: Detail the tensioned fabric structure such that no life safety issues are created if fabric membranes or associated parts are lost. System must not rely on any membrane for structural stability.
5.	Railings: Determine allowable design working stresses of railing materials based on the following:
a.	Aluminum: Lesser of minimum yield strength divided by 1.65 or minimum ultimate tensile strength divided by 1.95.
b.	Copper Alloys: 60 percent of minimum yield strength.
c.	Stainless Steel: 60 percent of minimum yield strength.
d.	Steel: 72 percent of minimum yield strength.
e.	Thermal Movements: Allow for thermal movements from ambient and surface temperature changes.
f.	Temperature Change:
1)	Ambient: 120 degrees F (48.89 degrees C).
2)	Material Surface: 180 degrees F (82.22 degrees C).
6.	Structural Performance: Tensioned fabric structure must withstand the effects of gravity loads and the following loads and stresses within limits and under conditions indicated per requirements of ASCE/SEI 7:
a.	Wind Loads: To be determined by Manufacturer's Engineer of Record.
b.	Live Loads: To be determined by Manufacturer's Engineer of Record.
c.	Snow Loads: To be determined by Manufacturer's Engineer of Record.
d.	Seismic Loads: To be determined by Manufacturer's Engineer of Record.
B.	Canopy Fabric Materials:
1.	Performance Requirements:
a.	Fabric thickness and tensile strength: Meet or exceed engineering requirements with a safety factor of five (5).
b.	Fire-Test-Response Characteristics:
1)	Flame-Resistance Ratings: Passes NFPA 701.
2)	Noncombustible: Passes ASTM E136 and E108.
3)	Flame Spread: Class A; ASTM E84.
c.	Porosity: Waterproof or 20 percent open mesh.
2.	PTFE Fabric:
a.	Subject to compliance with the requirements, furnish and install products by one of the following:
1)	Chukoh: Skytop product line.
2)	Saint Gobain: Sheerfill product line.
3)	Taconic: Solus product line.
4)	Verseidag: Duraskin product line.
b.	Color: As indicated on Drawings.
3.	PVC Fabric:
a.	Subject to compliance with the requirements, furnish and install products by one of the following:
1)	Hiraoka.
2)	Mehler: Polymar product line.
3)	Naizil.
4)	Seaman Corporation: Shelter-Rite product line.
5)	Serge Ferrari Textiles: Precontraint product line.
b.	Color: As indicated on Drawings.
4.	High Density Polyethylene (HDPE):
a.	Subject to compliance with the requirements, furnish and install products by one of the following:
1)	Polyfab.
2)	Synthesis.
3)	Monotec 370.
b.	HDPE fabric must be designed to avoid contact with PVC material.
c.	Threads: HDPE fabric must be sewn with PTFE thread to avoid premature failure due to UV deterioration.
d.	Stitching: Fabric must be sewn with chain stitching to prevent bursting at the seams.
e.	Color: As indicated on Drawings.
C.	Canopy Frame, Strands, Fittings, and Accessories:
1.	Frame material: Cold rolled carbon steel unless otherwise specified by the Architect in Drawings.
a.	Steel and Iron:
1)	Bars: Hot-rolled, carbon steel, Grade 1010; ASTM A29/A29M.
2)	Plates, Shapes, and Bars: ASTM A36 or ASTM A572 per engineering requirements. 
3)	Tubing: ASTM A500 cold formed or ASTM A513.
b.	Stainless Steel:
1)	Bars and Shapes: Type 316L; ASTM A276.
2)	Castings: Grade CF 8M or CF 3M; ASTM A743/A743M.
3)	Pipe: Grade TP 316L; ASTM A312/A312M.
4)	Sheet, Strip, Plate, and Flat Bar: Type 316L; ASTM A666.
5)	Tubing: Grade MT 316L; ASTM A554.
c.	Aluminum:
1)	Extruded Bars and Shapes: Alloy 6063-T5/T52; ASTM B221.
2.	Strands and Fittings: 
a.	Performance and Design Requirements:
1)	Strands in contact with PTFE fabric must be PVC coated.
2)	Any strand in contact with HDPE fabric must never have PVC coating.
b.	Manufacturers: Subject to compliance with the requirements, furnish and install products by one of the following:
1)	Crosby Group.
2)	Frontier Technologies.
3)	Jack Rueben and Sons.
4)	John A. Batchelor Co Inc.
5)	McMaster-Carr.
6)	Ronstan International Inc.
c.	Galvanized Steel Structural Strands:
1)	Strand: 1x19 configuration; zinc-coated, galvanized steel structural wire strand conforming to ASTM A603.
2)	Strand End Terminations and Fittings: Forged or machined steel, hot-dip galvanized conforming to ASTM A153. Fittings rated for 100 percent efficiency, capable of developing the full catalog breaking strength of strand without slippage or structural failure.
d.	Stainless Steel Structural Strands:
1)	Strand: 1x19 configuration; Type 316 stainless steel wire strand conforming to ASTM A492.
2)	Strand Terminations and Fittings: Type 316 stainless steel; fittings rated for 100 percent efficiency to develop the full catalog breaking strength of the 1x19 strand without slippage or structural failure.
3.	Accessories:
a.	Base Plates and Anchor Bolts: 
1)	Base Plates Supported on Concrete: Furnish and set on shims, leveling plates, or leveling nuts. Grouting by the Contractor.
2)	Anchor bolt locations furnished by the Manufacturer and used by the Contractor to set the bolts. Contractor must carefully check setting of the bolts and ensure their proper position prior to placing of concrete. Contractor provided anchor bolts must have two (2) nuts and washers.
3)	Repair damaged threads or cut to permit full tightening of nuts.
4)	Anchor bolts must have adequate thread length above concrete for the leveling nut, the base plate, the top nut, the washers, and at least two (2) full threads exposed on top. Any concrete that impedes the required thread length must be chipped away by the Contractor prior to the installation of the frame.
4.	Metal Battens for Securing Canopy Fabric to Structural Steel Frame: Constructed of extruded 6061-T6 aluminum alloy conforming to ASTM B221.
5.	Metal Surface Appearance: Finish with smooth seamless surfaces and without seam marks, roller marks, rolled trade names, stains, discolorations, or blemishes.
D.	Canopy Frame Finish:
1.	Polyester Powder Coat Finish:
a.	Commercial blast clean surface per requirements of SSPC-SP 10.
b.	Apply primer and polyester powder coat paint to a minimum of 3 mils thick.
c.	Color: As selected from manufacturer's available stock colors.
2.	Two Part Paint Finish for Corrosive Environments: Five (5) years.
a.	Commercial blast clean surface per requirements of SSPC-SP 10.
b.	Primer Material: One (1) coat of Tnemec 90/97 at 3.0 mils DFT minimum.
c.	Paint Material: One (1) coat of Tnemec Series 1095 or 1096 at 3.0 mils DFT minimum.
d.	Total Thickness: 6.0 mils DFT minimum.
e.	Color: As selected from manufacturer's available stock colors.
f.	Warranty: Five (5) years for gloss and color retention.
3.	Two Part Paint Finish for Corrosive Environments: Ten (10) years.
a.	Commercial blast clean surface in accordance to SSPC-SP 10.
b.	Primer Material: One (1) coat of Tnemec 90/97 at 3.0 mils DFT minimum.
c.	Paint Material: One (1) coat of Tnemec Series 750 at 3.0 mils DFT minimum.
d.	Total Thickness: 6.0 mils DFT minimum.
e.	Color: As selected from manufacturer's available stock colors.
f.	Warranty: Ten (10) years for gloss and color retention.
4.	Galvanizing:
a.	Comply with ASTM A123/A123M or ASTM A153/A153M for hot-dip galvanizing as applicable.
b.	Unless indicated to remain as weep holes, fill vent and drain holes that are exposed in the finished Work by plugging with zinc solder and filing off smooth.
PART 3    EXECUTION
3.1	EXAMINATION
A.	Examine structural steel framing and other substrates with Installer present for:
1.	Compliance with requirements for installation tolerances.
2.	Other conditions affecting performance of the Work.
B.	Prepare and deliver a written report endorsed by Installer listing conditions detrimental to performance. 
C.	Proceed with installation only after unsatisfactory conditions have been corrected.
3.2	PREPARATION
A.	Clean surfaces thoroughly prior to installation.
B.	Prepare surfaces using Manufacturer's recommended methods for achieving the best result for the substrate under the Project conditions.
3.3	INSTALLATION - TENSILE FACADE SYSTEMS
A.	Proceed with installation only when existing and forecasted weather conditions permit work to be performed per Manufacturer's recommendations.
B.	Install per Manufacturer's instructions, approved submittals, and in proper relationship with adjacent construction.
C.	Erect frame and fabric per Manufacturer's recommended installation procedures.
D.	Eliminate fabric wrinkles by applying adequate pre-stresses.
E.	Field assemble tensile facade system support frame with bolted or pinned connections.
F.	Field welding is not permitted.
3.4	INSTALLATION - TENSIONED FABRIC STRUCTURES
A.	Proceed with installation only when existing and forecasted weather conditions permit work to be performed per Manufacturer's recommendations.
B.	Install per Manufacturer's instructions, approved submittals, and in proper relationship with adjacent construction.
C.	Erect frame and fabric per Manufacturer's recommended installation procedures.
D.	Apply adequate prestress to eliminate fabric wrinkles and excess cable sag. Membranes with extreme twist or shallow catenary curves are more prone to wrinkles. Minimize wrinkles with adjustments.
E.	Field assemble structure with bolted or pinned connections.
F.	Field welding is not permitted.
3.5	FIELD QUALITY CONTROL
A.	Manufacturer's Field Service: Engage a factory-authorized service representative to test and inspect components, assemblies, and equipment installations including connections.
B.	Prepare and deliver test and inspection reports.
3.6	MEMBRANE PATCHING
A.	Each patching must be done by trained and authorized personnel.
B.	Minor repairs are defined as:
1.	A patch, no larger than one (1) percent of the fabric panel area.
2.	Sewn or sealed reinforcement at corners or joints.
3.	Sewing and sealing no greater than 12 inches (304.8 mm) in length.
C.	One patch maximum per membrane will be permissible.
D.	Two patches maximum will be allowed for the entire project.
E.	Sewn or sealed reinforcements are allowed at each corner when necessary.
3.7	ADJUSTING
A.	Requests for adjustments are allowed within twelve (12) months from date of Substantial Completion. 
B.	Manufacturer must adjust the system on-site to suite actual occupied conditions.
C.	Adjustments must be performed during other-than-normal occupancy hours during one (1) on-site visit.
3.8	CLEANING AND PROTECTION
A.	Clean products per Manufacturer's recommendations. 
B.	Touch-up, repair, or replace damaged products before Substantial Completion.
3.9	CLOSEOUT ACTIVITIES
A.	Demonstration: Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust cable and fabric tension and to clean and maintain canopy fabric.

END OF SECTION