Nelson Industrial Inc. Ceilings Specification

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SECTION 09500

CEILINGS

** NOTE TO SPECIFIER ** Nelson; standard and custom metal ceilings products. . This section is based on the products of Nelson Industrial, Inc., which is located at:
1155 Squires Beach Road.
Pickering, Ontario, Canada L1W 3T9.
Toll Free Tel: (800)277-6897.
Tel: (905)428-2240.
Fax: 905-428-2392
Email: architectural@nelsonindust.com
Web: www.nelsonindust.com. .

Since 1973 Nelson Industrial has been designing and manufacturing high-quality, precision-fabricated metal products for clients throughout North America. Nelson installations can be found everywhere from McDonald's to BMW; and Toronto International Airport to Harvard University. At our 100,000 square foot facility in Pickering, ON, Nelson manufactures a comprehensive range of standard and customized products through five divisions: .
- Access Doors
- Architectural Metals
- Contract Manufacturing
- Storage Products
- Automotive

.Nelson's state-of-the-art design software, modern production practices and manufacturing equipment enable us to develop a product from concept through to completion under one roof - ensuring quick and efficient management of aggressive delivery schedules, maximization of resource utilization and prompt response to customer needs. "Nuvo"-Series Metal Pan Systems are typically offered for flat and curved installations. Nelson Architectural has been dedicated for years, in supplying high quality metal ceiling panels throughout North America. Our manufacturing method has made us one of the leaders in the ceiling industry, by offering a broad range of standard solutions or custom engineering an ideal system to meet your specific needs. NuvoPan - LI Nelson's Lay-In panels uses an exposed standard T-bar grid to create a ceiling with easy lift-up access. The panels can be laid flush on the grid or with a projection below the bottom face of the tee (tegular). These popular panels typically are installed into a flat grid, are easy to install and simple to maintain. The Lay-In variety of design, durability and provision of access to the plenum, gives it a strong position in the marketplace. For a large curved area, these panels can also be applied, in particular if narrow side of panels are placed along a large radius.
NuvoPanel - NT Nelson's Noveltee Series use a standard 15/16 inch (24 mm) T-bar grid, but conceals the grid and provides a monolithic appearance. The panels can be butt joint or have a reveal between each panel. These panels are easy to install and simple to maintain. The Noveltee Series ease of installation using a standard 15/16 inch (24 mm) grid makes it ideal for new construction or even remodeling of existing areas.
NuvoPanel - HO Nelson's Hook-On Series use a common 3 inch (76 mm) deep J-channel at each panel joint line in one direction only. The J-channel is attached to a secondary support channel, typically a standard 15/16 inch (24 mm) tee-bar grid or common black iron. The system provides a concealed grid and mostly used where plank style panels are desired. Panels can be butt jointed or have up to 1/4 inch (6 mm) reveal between each panel, typically in long length of the panel. These popular panels are easy to install and removed individually by lifting upward for excess to plenum. The Hook-On Series' variety of design, durability, is ideal for all interior applications. NuvoPanel - TSP Nelson's Torsion Spring Panel System features a monolithic design that gives a 100 percent downward accessibility, making it perfect for interior or exterior use, suitable for both flat and curved installations. Every panel can be demountable with a downward motion followed by the compression of the torsion spring(s) from the slotted tee bar. The system incorporates a concealed grid consisting of pre-slotted extruded aluminum 11/2 inch by 11/2 inch (38 mm by 38 mm) tee and cross members with hanger wire or attachment to an "Uptight" clip for engagement to a secondary grid (black iron). For exterior applications the system can be engineered to various degrees of uplift and suction pressures. Delete if not required.
NuvoPlank - T+S Nelson's Plank Series, a tongue and slot system, mirrors the monolithic look of the Hook-On Series, but provide maximum durability in terms of uplift and suction pressures. The Plank Series is typically a progressive system but can be designed to provide intermediate access to plenum through means of access strips or incorporating access doors. System is ideal for large canopy or soffit applications where the need for access to plenum is limited, and durability is premium.

NuvoGrid: Nelson's Beam Grid Series system is made up of brake formed beams from aluminum or satin galvanized steel, in sizes from 2 inch by 2 inch (50 mm by 50 mm) and up, that interlock to form a visual space grid. The Grid Series system offers flexibility in design choices, module sizes, finishes and plenum masking view, which can create both a decorative and functional open ceiling environment.

SECTION 09500 - CEILINGS, Copyright 2006, ARCAT, Inc.

PART 1

GENERAL

1.1

SECTION INCLUDES

** NOTE TO SPECIFIER ** Delete items below not required for project.

Metal pan ceilings including suspension system and associated components as scheduled.

Metal panel ceilings including suspension system and associated components as scheduled.

Metal plank ceiling including suspension system and associated components as scheduled.

Metal grid ceilings including suspension system and associated components as scheduled.

1.2

RELATED SECTIONS

** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.

Section 09260 - Gypsum Wallboard.

Section 09510 - Acoustical Ceiling.

Section 15815 - Metal Ductwork.

Section 15855 - Diffusers, Registers and Grilles.

Section 16500 - Lighting Equipment.

Section 16510 - Lighting Fixtures.

1.3

REFERENCES

** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.

Aluminum Association: AA3005 H26 - Aluminum alloy and temper.

Aluminum Association: AA3003-H14 - Aluminum alloy and temper.

ASTM A 635 - Standard Specification for Steel, Sheet and Strip, Heavy-Thickness Coils, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloy with Improved Formability.

ASTM A 666 - Standard Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate and Flat Bar.

ASTM A 636 - Standard Specification for Nickel Oxide Sinter.

ASTM A 653 - Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process.

ASTM B 209 - Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate.

ASTM E 84 - Standard Test Method for Surface Burning Characteristics of Building Materials.

ASTM E 580 - Standard Practice for Application of Ceiling Suspension Systems for Acoustical Tile and Lay-in Panels in Areas Requiring Moderate Seismic Restraint.

1.4

SUBMITTALS

Submit under provisions of Section 01300.

Manufacturer's data sheets on each product to be used, including:

Preparation instructions and recommendations.

Storage, handling and maintenance instructions and recommendations.

Installation methods.

Shop Drawings: submit shop drawings for reflected ceiling plans and coordinating penetrations and ceiling mounted items. Show the following details:

Details and reflected ceiling plans for the metal ceiling system.

Clearly illustrate all components of the metal ceiling system suspension and components.

System assembly details and connections to building components.

Location of light fixtures, diffusers, speakers and other finish items.

Framing and support details for work supported by ceiling suspension system.

List of materials, dimensions, hanger fastenings and special details.

** NOTE TO SPECIFIER ** Delete selection samples if colors have already been selected.

Selection Samples: For each finish product specified, two complete sets of color chips representing manufacturer's full range of available colors and patterns.

Verification Samples: For each finish product specified, two samples, minimum size 12 inches (305 mm) square, representing actual product, color and patterns.

1.5

QUALITY ASSURANCE

Manufacturer Qualifications:

Provide metal ceiling components produced by a single manufacturer with resources adequate to deliver a product of consistent quality in terms of appearance and physical properties for all project scopes and scales without risk of delay or interruption.

** NOTE TO SPECIFIER ** Delete the next paragraph if a curved ceiling is not specified.

Provide suspension system components produced by a single manufacturer to provide compatible components for a complete curved metal panel ceiling system installation.

Installer Qualifications:

Installation work to be performed by a firm whose personnel have no less than three (3) years of successful experience on projects of similar size, requirements and complexity.

Regulatory Requirements:

The system shall be rated Class A for fire performance with a flame spread index of 25 or less and a smoke developed rating of 50 or less when tested according to ASTM method E 84.

The system to be installed shall be certified to comply with structural, wind uplift and seismic requirements of governing codes currently in effect and with these specifications requirements.

When required for the application, install required bracing for seismic restraint in accordance with ASTM E 580 and local building code.

** NOTE TO SPECIFIER ** Include a mock-up if the project size and/or quality warrant taking such a precaution. The following is one example of how a mock-up on a large project might be specified. When deciding on the extent of the mock-up, consider all the major different types of work on the project.

Mock-Up: After approval of shop drawings, provide a mock up of the specified ceiling to demonstrate aesthetic effect and set quality standard for fabrication and installation.

Finish areas designated by Architect. Mock-up shall be installed in an area where it can become part of the final installation.

Do not proceed with remaining work until workmanship, color and sheen are approved by Architect.

Refinish mock-up area as required to produce acceptable work.

1.6

DELIVERY, STORAGE AND HANDLING

Store products in manufacturer's unopened packaging until ready for installation clearly labeled with the following information: project number, item number and quantity, manufacturer's name and address, client name and address and site address.

Store and dispose of solvent-based materials, and materials used with solvent-based materials, in accordance with requirements of local authorities having jurisdiction.

Panels shall be protected with strippable PVC protector. Protector to be removed after complete installation is done to prevent damage to the panel during installation.

Store components in a fully enclosed dry space where they will be protected against damage from moisture, direct sunlight, surface contamination and other construction activities.

Comply with prescribed stacking instructions to prevent damage to the components.

Handle components in a manner to prevent damage to the surfaces and edges and prevent distortion and other physical damage.

1.7

PROJECT CONDITIONS

Maintain environmental conditions (temperature, humidity and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's absolute limits.

Begin system installation only after spaces are enclosed and weather-tight and after all wet work and overhead work has been completed.

Prior to starting installation, allow materials to reach ambient room temperature and humidity intended to be maintained for occupancy.

Coordinate with other work supported by or penetrating through the ceiling.

1.8

EXTRA MATERIALS

Provide extra material, in percentage required, matching installed material, in manufacturer's original packages and clearly labeled as attic stock.

** NOTE TO SPECIFIER ** Insert percent of installation materials for attic stock required.

Percentage: ___ percent.

Deliver extra stock and access tools to owner's representative.

PART 2

PRODUCTS

2.1

MANUFACTURERS

Acceptable Manufacturer: Nelson Industrial Inc., which is located at: 1155 Squires Beach Rd. ; Pickering, ON L1W 3T9; Toll Free Tel: 800-277-6877; Tel: 905-428-2240; Email: request info; Web: www.nelsonindust.com

** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.

Substitutions: Not permitted.

Requests for substitutions will be considered in accordance with provisions of Section 01600.

** NOTE TO SPECIFIER ** Delete the entire next article if Metal Pan Ceilings are not required.

2.2

METAL PAN CEILING SYSTEM

** NOTE TO SPECIFIER ** Nelson's Lay-In panels uses an exposed standard T-bar grid to create a ceiling with easy lift-up access. The panels can be laid on the grid, flush with the grid or with a reveal (tegular) with a depth provided typically up to 2 inches (52 mm). These popular panels typically are installed into a flat grid, are easy to install and simple to maintain. The Lay-In variety of design, durability and provision of access to the plenum, gives it a strong position in the marketplace. For large curved areas, these panels can also be applied, in particular if short sides of panels are placed along the curve. Delete if not required.

Lay-In (LI) Series: Easy lift-up access on exposed T-grid ceilings.

** NOTE TO SPECIFIER ** Select Material. Delete two of the next three paragraphs.

Material: Aluminum - ASTM B 209, alloy and temper recommended by aluminum producer and finisher for type of use and finish indicated, and with not less than the strength and durability properties of the alloy and temper for color-coated finish: 3003-H14 or as standard with manufacturer. Minimum 0.032 inch (0.81 mm). Thickness may be subject to application.

Material: Galvanized Steel: Complying with ASTM A653/A653M-05 Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed). Minimum 0.032 inch (0.81 mm). Thickness may be subject to application.

Material: Stainless Steel: Complying with ASTM A666. Minimum 0.032 inch (0.81 mm). Thickness may be subject to application.

Accessibility: System is 100 percent accessible. Every panel may be disengaged with an upward motion.

** NOTE TO SPECIFIER ** Select Panel Size. Delete seven of the next eight paragraphs.

Size: Refer to Reflected Ceiling Plan and schedule for custom sizes.

Size: 12 inches by 12 inches (305 mm by 305 mm).

Size: 12 inches by 24 inches (305 mm by 610 mm).

Size: 12 inches by 36 inches (305 mm by 914 mm).

Size: 12 inches by 48 inches (305 mm by 1219 mm).

10.

Size: 12 inches by 60 inches (305 mm by 1524 mm).

11.

Size: 24 inches by 24 inches (610 mm by 610 mm).

12.

Size: 24 inches by 48 inches (610 mm by 1219 mm).

** NOTE TO SPECIFIER ** Delete panel joint detail not required.

13.

Panel Joints: Flush lay-in (panel face installed in-line with grid level).

14.

Panel Joints: Tegular Lay-in (panel face sits below grid level):

** NOTE TO SPECIFIER ** Custom drops are also available (consult manufacturer for specific application). Delete drop not required.

Drop: Refer to Reflected Ceiling Plan and schedule for drops.

Drop: 0.350 inch (9 mm) drop.

Drop: 0.500 inch (13 mm) drop.

** NOTE TO SPECIFIER ** Delete if hold down device is not required.

Tegular lay-in with hold down device (for moderate upward load requirements).

15.

Suspension System: Formed steel or aluminum components in the "T" shape with standard main and cross tees.

** NOTE TO SPECIFIER ** Select grid. Delete one of the next two paragraphs.

9/16 inch (14 mm) wide.

15/16 inch (24 mm) wide.

16.

Hanger wire: Minimum 12 Gauge (2.66 mm) pre-stretched galvanized steel wire. Spacing between hanging points cannot exceed 48 inches (1219 mm) on center on the primary suspension.

17.

Accessories: Manufacture custom panels, trim pieces, moldings and other design particularities to match the ceiling panel material, finish and texture.

** NOTE TO SPECIFIER ** Nelson's Noveltee Series panels use the standard 15/16 inch (24 mm) T-bar grid, but conceals the grid and provides a monolithic appearance. The panels can be butt joint or provided with reveals between each panel. These panels are easy to install and simple to maintain. The Noveltee Series' variety of design, durability and provision of access to the plenum, is ideal for new construction or for remodeling of existing areas where a standard 15/16 inch (24 mm) grid exists. Delete if not required.

Noveltee (NT) Series: Downward demountable access on concealed T-grid ceilings.

** NOTE TO SPECIFIER ** Select Material. Delete two of the next three paragraphs.

Material: Stainless Steel: Complying with ASTM A666. Minimum 0.032 inch (0.81 mm). Thickness may be subject to application.

Spring Clips: Stamped stainless steel.

** NOTE TO SPECIFIER ** Select Panel Size. Delete eight of the next nine paragraphs.

Size: Refer to Reflected Ceiling Plan and schedule for custom sizes.

Size: 12 inches by 12 inches (305 mm by 305 mm).

Size: 12 inches by 24 inches (305 mm by 610 mm).

Size: 12 inches by 36 inches (305 mm by 914 mm).

Size: 24 inches by 24 inches (610 mm by 610 mm).

10.

Size: 24 inches by 48 inches (610 mm by 1219 mm).

11.

Size: 30 inches by 30 inches (762 mm by 762 mm).

12.

Size: 36 inches by 36 inches (914 mm by 914 mm).

13.

Size: 48 inches by 48 inches (1219 mm by 1219 mm).

** NOTE TO SPECIFIER ** Select panel joint. Delete two of the next three paragraphs.

14.

Panel Joints: Butt (closed) joint.

15.

Panel Joints: Beveled 3/8 inch (8 mm).

16.

Panel Joints: Reveal between panels.

** NOTE TO SPECIFIER ** Select reveal joint. Delete two of the next three paragraphs.

Up to 1/4 inch (6.35 mm) width by 1 1/2 inches (38 mm) depth.

1/2 inch (12.7 mm) width by 1/2 inch (12.7 mm) depth.

As indicated on drawings.

17.

Suspension System:

Primary Suspension: Provide primary suspension members consisting of standard roll formed main and cross tees 15/16 inch (24 mm) wide.

Secondary Suspension: Minimum 12 Gauge (2.66 mm) pre-stretched galvanized steel wire. Spacing between hanging points on main tees cannot exceed 48 inches (1219 mm) on center.

18.

Accessories: Manufacture custom panels, trim pieces, moldings and other design particularities to match the ceiling panel material, finish and texture.

** NOTE TO SPECIFIER ** Nelson's Hook-On Series use a common 3 inch (76 mm) deep J-channel at each panel joint line in one direction only. The J-channel is attached to a secondary support channel, typically a standard 15/16 inch (24 mm) T-bar grid or common Black Iron. The system provides a concealed grid similar to the Snap-In System but mostly used for plank type panels. Panels can be butt jointed or have 1/4 inch (6 mm) reveal between each panel, typically in long length of the panel. These popular panels are easy to install and removed individually by lifting upward for excess to plenum. The Hook-On Series' variety of design, durability, is ideal for all interior applications. Delete grid not required.

Hook-On (HO) Series: Upward demountable panel access on concealed J-grid.

** NOTE TO SPECIFIER ** Select Material. Delete two of the next three paragraphs.

Material: Aluminum - ASTM B 209, alloy and temper recommended by aluminum producer and finisher for type of use and finish indicated, and with not less than the strength and durability properties of the alloy and temper for color-coated finish: 3003-H14 or as standard with manufacturer. Minimum 0.050 inch (1.27 mm) Thickness may be subject to application.

Material: Galvanized Steel: Complying with ASTM A653/A653M-05 Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed). Minimum 0.050 inch (1.27 mm) Thickness may be subject to application.

Material: Stainless Steel: Complying with ASTM A666. Minimum 0.050 inch (1.27 mm) Thickness may be subject to application.

** NOTE TO SPECIFIER ** Select Panel Size. Delete two of the next three paragraphs.

Size: Refer to Reflected Ceiling Plan and schedule for custom sizes.

Size: 12 inches by 48 up to 144 inches (305 mm by 1220 up to 3658 mm).

Size: 24 inches by 48 up to 144 inches (610 mm by 1220 up to 3658 mm).

** NOTE TO SPECIFIER ** Select panel joint. Delete two of the next three paragraphs.

Panel Joints: Butt (closed) joint.

Panel Joints: Reveal between panels 1/8 inch (3 mm) c/w. gasket.

Panel Joints: Reveal between panels 1/4 inch (6 mm) c/w gasket.

10.

Suspension System:

Primary Suspension: 14 Gauge (1.98 mm) galvanized 2 1/2 inch (63.5 mm) J-channel for attachment to secondary suspension noted below or similar. Spacing of J-channels to match panel widths.

Secondary Suspension: Provide secondary suspension members consisting of 14 Gauge (1.98 mm) galvanized hanger angle 11/4 inch by 1 1/4 inch by 4 inch (31.75 mm by 31.75 mm by 102 mm) for attachment to black iron on max. 48 inch (1220 mm) perpendicular center to J-channel, or standard main and cross tees minimum 15/16 inch (24 mm) wide.

11.

Accessories: Manufacture custom panels, trim pieces, moldings and other design particularities to match the ceiling panel material, finish and texture.

NuvoPanel - TSP Nelson's Torsion Spring Panel System features a monolithic design that gives a 100 percent downward accessibility, making it the ideal interior or exterior system for high end ceilings or soffits, suitable for flat and curved installations. Every panel can be demountable with a downward motion followed by compression of the torsion springs from the slotted tee bar. The system incorporates a concealed grid consisting of pre-slotted extruded aluminum 11/2 inch by 11/2 inch (38 mm by 38 mm) tee and cross members with hanger wire or attachment to a secondary grid (black iron). System can be engineered to various degrees of uplift and suction pressures, making it ideal for exterior use. Delete if not required.

TSP Interior Series: Downward demountable with torsion spring access on extruded T-grid ceilings.

** NOTE TO SPECIFIER ** Select Material. Delete two of the next three paragraphs.

Material: Stainless Steel: Complying with ASTM A666. Minimum 0.032 inch (0.81 mm). Thickness may be subject to application.

** NOTE TO SPECIFIER ** Select Panel Size. Delete four of the next five paragraphs.

Size: Refer to Reflected Ceiling Plan and schedule for custom sizes.

Size: 24 inches by 24 inches (610 mm by 610 mm).

Size: 24 inches by 48 inches (610 mm by 1219 mm).

Size: 24 inches by 60 inches (610 mm by 1524 mm).

Size: 24 inches by 72 inches (610 mm by 1829 mm).

** NOTE TO SPECIFIER ** Select panel joint. Delete two of the next three paragraphs.

Panel Joints: Butt (closed) joint.

10.

Panel Joints: Beveled 3/8 inch (8 mm).

11.

Panel Joints: Reveal between panels.

** NOTE TO SPECIFIER ** Select reveal joint. Delete two of the next three paragraphs.

Reveal up to 1/4 inch (6.35 mm) width by 1 1/2 inches (38 mm) depth.

Reveal 1/2 inch (12.7 mm) width by 1/2 inch (12.7 mm) depth.

As shown on contract drawings.

12.

Suspension System:

Primary Suspension: Provide primary suspension members consisting of extruded aluminum T-bar components of standard 6063-T5 alloy that will meet structural requirements as defined in ASTM 635 and ASTM 636 for direct hung ceilings. When required for the application install required bracing for seismic restraint in accordance with ASTM E 580 and in accordance with local building code regulations.

Secondary Suspension: 18 Gauge 0.050 inch (1.27 mm) galvanized Uptite hanger brackets for attachment to minimum 1 1/2 inch (38.1 mm) black iron on max. 48 inch (1220 mm) perpendicular center to main tees or minimum 12 Gauge (2.66 mm) pre-stretched galvanized steel wire or threaded rods. Spacing between hanging points on main tees not to exceed 48 inches (1219 mm) on center.

Main Tees: Main tees 1 1/2 inch by 1 1/2 inch (38 mm by 38 mm) to be factory indexed and slotted to accept cross members and panel mounted torsion springs.

Cross Members: 18 Gauge 0.050 inch (1.27 mm) thick channels, nominal 24 inches (610 mm) or the length required to suit panel width. Ready to connect to main tees using pre-indexed locator holes for attachment with screws.

13.

Accessories: Manufacture custom panels, trim pieces, moldings and other design particularities to match the ceiling panel material, finish and texture.

TSP Exterior Series: Downward demountable with torsion spring access on extruded T-grid ceilings.

** NOTE TO SPECIFIER ** Select Material. Delete two of the next three paragraphs.

Material: Aluminum - ASTM B 209, alloy and temper recommended by aluminum producer and finisher for type of use and finish indicated, and with not less than the strength and durability properties of the alloy and temper for color-coated finish: 3003-H14 or as standard with manufacturer. Minimum 0.050 inch (1.27 mm) thickness. Thickness subject to application.

Material: Galvanized Steel: Complying with ASTM A653/A653M-05 Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed). Minimum 0.050 inch (1.27 mm) thickness. Thickness subject to application.

Material: Stainless Steel: Complying with ASTM A666. Minimum 0.050 inch (1.27 mm) thickness. Thickness subject to application.

** NOTE TO SPECIFIER ** For panels sizes or wind loads greater than this please contact Nelson for a specific design.

Wind Design: Panels of up to 8 SF (0.74 m2) must be capable of withstanding a downward pressure of 25 PSF (1.2 kPa) when supported on maximum 24 inch (610 mm) centers.

** NOTE TO SPECIFIER ** Select Panel Size. Delete three of the next four paragraphs.

Size: Refer to Reflected Ceiling Plan and schedule for custom sizes.

Size: 24 inches by 24 inches (610 mm by 610 mm).

Size: 24 inches by 36 inches (610 mm by 914 mm).

Size: 24 inches by 48 inches (610 mm by 1219 mm).

** NOTE TO SPECIFIER ** Select panel joint. Delete two of the next three paragraphs.

Panel Joints: Butt (closed) joint.

10.

Panel Joints: Beveled 3/8 inch (8 mm).

11.

Panel Joints: Reveal between panels.

** NOTE TO SPECIFIER ** Select reveal joint. Delete two of the next three paragraphs.

Reveal up to 1/4 inch (6.35 mm) width by 1 1/2 inches (38 mm) depth.

Reveal 1/2 inch (12.7 mm) width by 1/2 inch (12.7 mm) depth.

As shown on contract drawings.

12.

Suspension System:

Secondary Suspension: 18 Gauge .050 inch (1.27 mm) galvanized Uptite hanger brackets for attachment to minimum 11/2 inch (38.1 mm) black iron on maximum 48 inch (1220 mm) perpendicular center to main tees.

Main Tees: Main tees 11/2 inch by 11/2 inch (38 mm by 38 mm) to be factory punched to accept cross members and panel torsion springs.

Cross Members: 0.050 inch (1.27 mm) thick channels, nominal 24 inches (610 mm) or the length required to suit panel width. Ready to connect to main tees using pre-indexed locator holes for attachment with screws.

13.

Accessories: Manufacture custom panels, trim pieces, moldings and other design particularities to match the ceiling panel material, finish and texture.

Curved TSP:

** NOTE TO SPECIFIER ** Select Material. Delete two of the next three paragraphs.

Material: Aluminum - ASTM B 209, alloy and temper recommended by aluminum producer and finisher for type of use and finish indicated, and with not less than the strength and durability properties of the alloy and temper for color-coated finish: 3003-H14 or as standard with manufacturer. Minimum 0.040 inch (1.016 mm) thickness. Thickness is subject to application and curved panel span.

Material: Galvanized Steel: Complying with ASTM A653/A653M-05 Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed). Minimum 0.040 inch (1.016 mm) thickness. Thickness is subject to application and curved panel span.

Material: Stainless Steel: Complying with ASTM A666. Minimum 0.040 inch (1.016 mm) thickness. Thickness is subject to application and curved panel span.

** NOTE TO SPECIFIER ** Select Panel Size. Delete three of the next four paragraphs.

Size: Refer to Reflected Ceiling Plan and schedule for custom sizes.

Size: 24 inches by 24 inches (610 mm by 610 mm).

Size: 24 inches by 48 inches (610 mm by 1219 mm).

Size: 24 inches by 72 inches (610 mm by 1829 mm).

** NOTE TO SPECIFIER ** Select panel joint. Delete one of the next two paragraphs.

Panel Joints: Butt (closed) joint.

Panel Joints: Reveal between panels.

** NOTE TO SPECIFIER ** Select reveal joint. Delete two of the next three paragraphs.

Reveal up to 1/4 inch (6.35 mm) width by 11/2 inches (38 mm) depth.

Reveal 1/2 inch (12.7 mm) width by 1/2 inch (12.7 mm) depth.

As shown on contract drawings.

10.

Suspension System:

Primary Suspension: Provide primary suspension members consisting of factory brake formed and slotted aluminum channels typically running perpendicular to the curve of the ceiling manufactured from standard 3003-H14 alloy that will meet structural requirements as defined in ASTM 635 and ASTM 636 for direct hung ceilings. When required for the application install required bracing for seismic restraint in accordance with ASTM E 580 and in accordance with local building code regulations.

Secondary Suspension: Minimum 12 Gauge pre-stretched galvanized steel wire or threaded rods (by contractor). Spacing between hanging points on curved main tees cannot exceed 48 inches (1219 mm) on center.

11.

Accessories: Manufacture custom panels, trim pieces, moldings and other design particularities to match the ceiling panel material, finish and texture.

** NOTE TO SPECIFIER ** NuvoPlank - T+S Nelson's Plank Series, a tab and slot system, combine the monolithic look of the Hook-On Series, yet provide maximum durability in terms of uplift and suction pressures. The Plank Series is typically a progressive system but can be designed to provide access to plenum through means of access strip placed at appropriate intervals or incorporating access doors. System is ideal for large canopy or soffit areas where the need for access to plenum is limited.
Delete series not required.

T+S Series: A progressive system with limited downward demountable access on concealed grid while keeping a linear look.

** NOTE TO SPECIFIER ** Select Material. Delete two of the next three paragraphs.

Material: Aluminum - ASTM B 209, alloy and temper recommended by aluminum producer and finisher for type of use and finish indicated, and with not less than the strength and durability properties of the alloy and temper for color-coated finish: 3003-H14 or as standard with manufacturer. Minimum 0.064 inch (1.63 mm). Thickness is subject to application.

Material: Galvanized Steel: Complying with ASTM A653/A653M-05 Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed). Minimum 0.064 inch (1.63 mm). Thickness is subject to application.

Material: Stainless Steel: Complying with ASTM A666. Minimum 0.064 inch (1.63 mm). Thickness is subject to application.

** NOTE TO SPECIFIER ** For wind loads greater than this please contact Nelson for a specific design.

Wind Load Design: Designed to withstand 30 PSF (1.44 kPa) of positive or negative wind pressure when panels are supported at 24 inches (610 mm) on center.

** NOTE TO SPECIFIER ** Select Panel Size. Delete three of the next four paragraphs.

Size: Refer to Reflected Ceiling Plan and schedule for custom sizes.

Size: 12 inches to 24 inches (610 mm by 610 mm) in width.

Size: Up to 120 inches (3048 mm) in length.

Size: Refer to drawings.

Panel Joints: Butt joint.

10.

Suspension System:

Primary Suspension: Provide minimum 20 Gauge. 0.040 inch (1.0 mm) furring channel 1 inch by 2.5 inches (25 mm by 64 mm). Spacing between furring channels to be no more than 36 inches (914 mm) on center. Planks to be attached to furring channels using specified self-tapping screws.

Secondary Suspension: Provide horizontal steel members attached directly to solid vertical hangers running perpendicular to primary suspension (furring channels). Sizes and spacing between members to be determined by a professional engineer.

11.

Accessories: Manufacture custom panels, trim pieces, moldings and other design particularities to match the ceiling panel material, finish and texture.

2.3

BEAM GRID CEILING SYSTEMS

NuvoGrid: Beam Series system a plenum masking system consisting of brake formed channels (Beams).

** NOTE TO SPECIFIER ** Select Material. Delete two of the next three paragraphs.

** NOTE TO SPECIFIER ** Select Beam Height. Delete two of the next three paragraphs and insert size if not listed.

Beam Height: 2 inches (50 mm) nominal.

Beam Height: 4 inches (100 mm) nominal.

Beam Height: Other - _________________________________.

** NOTE TO SPECIFIER ** Select Beam Width. Delete two of the next three paragraphs and insert size if not listed.

Beam Width: 2 inches (50 mm) nominal.

Beam Width: 4 inches (100 mm) nominal.

Beam Width: Other - _________________________________.

** NOTE TO SPECIFIER ** Select Grid Size. Delete three of the next four paragraphs and insert size if not listed.

Grid Size: Refer to Reflected Ceiling Plan and schedule for custom grid sizes.

10.

Grid Size: 24 inches by 24 inches (610 mm by 610 mm).

11.

Grid Size: 36 inches by 36 inches (914 mm by 914 mm).

12.

Grid Size: 48 inches by 48 inches (1220 mm by 1220 mm).

13.

Grid Size: 60 inches by 60 inches (1524 mm by 15240 mm).

14.

Grid Size: Other - _________________________________.

15.

Suspension: Minimum 12 Gauge pre-stretched galvanized steel wire or 1/4 inch diameter threaded rods (by contractor). Spacing between hanging points on main beams cannot exceed 48 inches (1219 mm) on center. Provide hanger and corner brackets including beam splices as necessary to suspend ceiling grid.

16.

Accessories: Manufacture custom panels, trim pieces, moldings and other design particularities to match the ceiling panel material, finish and texture.

2.4

FABRICATION

Panel Fabrication:

Brake form metal panel to fit specified grid module from sheet metals selected for their surface flatness, smoothness, and freedom from surface blemishes where exposed to view in finished unit.

Do not use materials whose exposed surfaces exhibit pitting, seam marks, variations in flatness exceeding those permitted by referenced standards for stretched-leveled metal sheet, stains, discolorations or other imperfections.

** NOTE TO SPECIFIER ** Delete the next paragraph if TSP Series ceilings are not specified.

Factory attach torsion springs and associated attachment brackets with a minimum of two connections.

** NOTE TO SPECIFIER ** Select accessibility constraints. Only T+S Series has limited access, all others are 100 percent accessible.

Design system to be 100 percent accessible.

System has limited access at selected locations.

Panel Finish:

** NOTE TO SPECIFIER ** Custom finishes such as coil coated, or fluoropolymer are also available.

Finish: Baked polyester powder enamel finish complying with coating manufacturer's written instruction for pre-treatment, application, baking and minimum paint thickness.

** NOTE TO SPECIFIER ** Select from Nelson's standard polyester powder enamel color chart. Custom colors available upon request. Insert color required.

Color: ______________________.

** NOTE TO SPECIFIER ** Select Panel pattern. All Beam Grid systems are non-perforated. Delete 12 of the next 13 included paragraphs. For a complete list of Nelson's standard perforation patterns, request a copy of Nelson's "Perforations Patterns" data sheet. Additionally Nelson can provide custom perforation patterns upon request. Patterns shown below are a sample from our standard data sheet of the more popular patterns.

Surface Pattern:

Flat - No Surface Pattern.

Straight Pattern # 3: 0.125 inch (3.17 mm) diameter holes, 0.250 inch (6.35 mm) centers, having a 20 percent open area.

Straight Pattern # 4: 0.187 inch (4.76 mm) diameter holes, 0.375 inch (9.53 mm) centers, having a 20 percent open area.

Straight Pattern # 5: 0.250 inch (6.35 mm) diameter holes, 0.500 inch (12.70mm) centers, having a 20 percent open area.

Diagonal Pattern # 9: 0.094 inch (2.38 mm) diameter holes, 0.187 inch (4.76 mm) centers, having a 20% open area.

Diagonal Pattern # 10: 0.138 inch (3.50 mm) diameter holes, 0.266 inch (6.75 mm) centers, having a 20% open area.

Staggered Pattern # 13: 0.125 inch (3.17 mm) diameter holes, 0.250 inch (6.35 mm) centers, having a 23 percent open area.

Staggered Pattern # 14: 0.187 inch (4.76 mm) diameter holes, 0.375 inch (9.53 mm) centers, having a 23 percent open area.

Staggered Pattern # 15: 0.250 inch (6.35 mm) diameter holes, 0.500 inch (12.70 mm) centers, having a 23 percent open area.

10.

Straight Pattern # 18: 0.250 inch (6.35 mm) square holes, 0.500 inch (12.70 mm) centers, having a 25 percent open area.

11.

Straight Pattern # 20: 0.500inch (12.70 mm) square holes, 1.00 inch (25.40 mm) centers, having a 25 percent open area.

12.

Straight Pattern # 23: 0.125 inch (3.17 mm) by 1.25 inch (31.75 mm) oblong holes on 0.500 inch (12.70mm) by 1.750 inch (44.45 mm) centers, having a 15 percent open area.

13.

Straight Pattern # 24: 0.125 inch (3.17 mm) by 2.50 inch (63.50 mm) oblong holes on 0.500 inch (12.70mm) by 3.500 inch (88.90 mm) centers, having a 15 percent open area.

** NOTE TO SPECIFIER ** Delete if Acoustical Panels are not required.

Perforated Acoustical Panels:

Acoustical Fleece: 0.008 inch (0.2 mm) thick SoundTex by Freudenberg - Non-woven black acoustical textile laminated on the back of the panel. Class A fire rated.

** NOTE TO SPECIFIER ** Delete two of the next three paragraphs or all three if NRC ratngs are not required. NRC values below based on 16 inches (400 mm) space between the panel face and the slab above. The values below are meant as a guide only, with some variance expected dependant upon actual site conditions. A plenum space of less than 12 inches (300 mm) will noticeably reduce the effectiveness of the acoustical fleece.

Perforation Pattern with an open area of 10 to 15 percent with a layer of SoundTex fleece, NRC 0.65.

Perforation Pattern with an open area of 15 to 20 percent with a layer of SoundTex fleece, NRC 0.70.

Perforation Pattern with an open area of 20 to 25 percent with a layer of SoundTex fleece, NRC 0.75.

** NOTE TO SPECIFIER ** Class "A" per ASTM-84, 1.5 mil thick polyethylene and polyvinyl chloride (PVC) are standard. Both materials are available in black, white and clear facings. Note: Some building codes require the use of polyethylene due to its melting characteristics. Delete if not required.

Fully Encapsulated Acoustical Pads: Glass wool fiber completely sealed in an incombustible bag and installed with accordion pad spacers placed between the panel back and acoustical pad.

** NOTE TO SPECIFIER ** NRC 0.60 to 0.95 dependant upon perforation pattern. Delete if not required.

1 1/2 inches (38 mm) thick by 3/4 lb/ft3 (.05 kg/m3) density fully encapsulated acoustical pads: NRC as tested with perforation pattern scheduled.

** NOTE TO SPECIFIER ** Select insulation value. Delete two of the next three paragraphs.

Fully Encapsulated Pads 1.5 inches (38 mm), 3/4 lb/cu.ft. (.05 kg/m3) density insulation: R value of 5.0.

Fully Encapsulated Pads with 3/4 lb/cu.ft. (.05 kg/m3) density insulation, thickness as required: R value of 20.

Fully Encapsulated Pads with 3/4 lb/cu.ft. (.05 kg/m3) density insulation, thickness as required: R value of 30.

PART 3

EXECUTION

3.1

EXAMINATION

Do not begin installation until substrates have been properly prepared.

If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.

3.2

PREPARATION

Clean surfaces thoroughly prior to installation.

Verify and confirm ceiling layouts by actual field measurements to balance borders and minimize out-of square conditions. Coordinate all work that penetrates the ceiling.

Ceiling systems shall be centered and balanced spacing, unless indicated otherwise.

Cutouts for lights, speakers, sprinklers or other items shall be factory cut. Cutouts, when done on-site, shall be done by the ceiling installer.

3.3

INSTALLATION

Install in accordance with manufacturer's instructions.

3.4

PROTECTION

Adjust ceiling components to provide a consistent finish and appearance in conformity with pre-established tolerances and requirements. Panels showing signs of damage, either in finish or in form shall be replaced. Exposed surfaces shall be cleaned of any dirt, grease, fingerprints and marks and other imperfections with cleaning materials recommended by the manufacturer.

Protect installed products until completion of project.

Touch-up, repair or replace damaged products before Substantial Completion.

END OF SECTION