NOTE ** Naturalite hatches, heat and smoke vents; metal lids, plastic domes, drop out domes.
NOTE **
NOTE ** This section is based on products manufactured by Naturalite Skylight Systems, Butler Manufacturing Company, which is located at:
NOTE ** 803 Airport Road
NOTE ** P.O.Box 629
NOTE ** Terrell, TX 75160
NOTE ** Tel: (800) 259-7941
NOTE ** Fax: (972) 551-6129
NOTE **
NOTE ** SECTION 07724 - ROOF HATCHES AND VENTS, Copyright 1997, The Architect's Catalog, Inc.
NOTE ** HEAT AND SMOKE VENTS WITH PLASTIC DOMES:
NOTE **
NOTE ** CONDENSATION: Under certain conditions of high humidity and/or large inside to outside temperature differentials, condensation may occur on the aluminum framing and plastic glazing material. Double glazing will usually reduce the occurrence of condensation on the glazing, but will not totally eliminate it. Since plastic glazing cannot be hermetically sealed, condensation can form between the double layers of plastic but it will normally dissipate as the air space is heated by the sun. Sealed domes, where the flanges are sealed together ("bed" sealed), are more resistant to the formation of condensation and will reduce accumulation of dust and foreign matter. Sealed domes are available at additional cost.
NOTE ** PLASTIC GLAZING: Acrylic plastic is the standard glazing type, in clear and 3 standard colors. A full range of custom translucent and transparent tints is also available. Polycarbonate sheet may be required for greater impact resistance or to meet some fire code requirements. Refer to your local building code for acceptable types and possible square foot area restrictions. Do not use abrasion resistant plastic materials for domes, since they should not be thermoformed.
PART 1 GENERAL
1.1 SECTION INCLUDES
NOTE ** Delete any products not required for this project.
A. Roof hatches (scuttles).
B. Heat and smoke vents, UL/FM labelled.
C. Heat and smoke vents, non-labelled.
D. Heat and smoke vents, drop-out dome type, FM labelled.
1.2 RELATED SECTIONS
NOTE ** Delete any sections below not relevant to this project; add others as required.
A. Section 07510 - Built-Up Bituminous Roofing.
B. Section 07550 - Modified Bituminous Sheet Roofing.
C. Section 07530 - Elastomeric Membrane Roofing.
D. Section 07620 - Sheet Metal Flashing and Trim.
E. Section 07610 - Sheet Metal Roofing.
1.3 REFERENCES
NOTE ** Delete references from the list below that are not actually required by the text of the edited section.
A. AAMA 1605.1 - Voluntary Standard Uniform Load Test Procedure for Plastic Glazed Skylights by Uniform Static Air Pressure Difference; American Architectural Manufacturers Association.
1.4 SUBMITTALS
A. Submit under provisions of Section 01300.
B. Product Data: Manufacturer's descriptive literature, specifications, use limitations and recommendations.
C. Shop Drawings: Prepared specifically for this project, include:
1. Detailed plans and elevations, details of framing members, materials, sealants, fasteners, and anchors.
2. Type and thickness of formed flashing and closures.
3. Details of interface with adjacent materials.
NOTE ** Delete the following paragraph if colors are completely specified or indicated on the drawings.
D. Selection Samples: Two sets of color charts or samples, for selection of colors.
E. Glazing Samples: Two pieces of plastic glazing material in specified color, for verification.
1.5 QUALITY ASSURANCE
A. Manufacturer Qualifications: Minimum of 10 years experience in the fabrication and installation of similar products.
B. Installer Qualifications: Minimum of 2 years experience in installation of similar units.
1.6 DELIVERY, STORAGE, AND HANDLING
A. Arrange deliveries to avoid delays but to minimize on-site storage.
B. Deliver products in labelled packages.
C. Deliver, handle, and store in strict compliance with manufacturer's instructions and recommendations.
1.7 WARRANTY
A. Provide written warranty signed by manufacturer that products are free of defects in materials and workmanship. Include repair or replacement of work which exhibits defects for five years from date of completion. Defects are defined as uncontrolled leakage of water and abnormal aging or deterioration.
PART 2 PRODUCTS
2.1 MANUFACTURERS
A. Provide products made by Naturalite Skylight Systems, Butler Manufacturing Company, P.O. Box 629, 750 Airport Road, Terrell, TX 75160. ASD. Tel: (800) 527-4018. Fax: (972) 551-6420.
NOTE ** Delete one of the two following paragraphs; coordinate with Division 1 requirements. If other manufacturers must be listed, Plasteco and Wasco Products Inc. may manufacture products of equivalent performance.
B. Requests for substitution will be considered in accordance with provisions of Section 01600.
C. Substitutions: Not permitted.
D. For manufacturers not listed, submit evidence of ability to provide products that meet both performance and product requirements, including list of projects of similar design and complexity completed within the last 5 years.
E. Provide primary materials that are made by a single manufacturer.
2.2 ROOF HATCHES AND VENTS
A. Roof Hatches and Vents - Performance Requirements: Design to withstand the following loads:
NOTE ** Enter the required performance values in the paragraphs below. Hatches and vents used in low-rise construction where the roof elevation is 60 feet or less above grade should be designed to support a snow load of 20 psf and negative wind pressure of 20 psf, minimum. Greater capacity may be required depending on code requirements or project location. Heat and smoke vents are also specified to resist opening under up to 30 psf wind uplift.
1. Snow load: ___ psf (___ kPa).
2. Wind load: ___ psf (___ kPa) negative.
3. Seismic loads: As required by applicable code.
4. Dead loads.
5. Plastic Dome Lids: Show compliance with wind load requirements by testing in accordance with AAMA 1605.1.
B. Roof Hatches: Factory-assembled units, complete with pintle hinges, compensating and hold open extension springs, bulb curb gasket, inside latch, and padlock hasp. Provide the following:
1. Insulated Metal Lid:
a. Frame: 0.078 inch (2.0 mm) thick extruded aluminum.
b. Cover: 0.090 inch (2.3 mm) thick aluminum.
c. Cover: 18 gage (1.2 mm) galvalume.
d. Insulation: 1 inch (25 mm) thick fiberglass.
e. Liner: 0.040 inch (1.0 mm) thick aluminum.
2. Lid with Dome:
a. Type: Single dome.
b. Type: Double dome.
c. Dome: Acrylic plastic glazing.
d. Outer Dome Color: Colorless.
e. Outer Dome Color: White.
f. Outer Dome Color: Bronze.
g. Outer Dome Color: Grey.
NOTE ** Delete the following two paragraphs if single dome skylight has been specified. Otherwise, delete one of the two paragraphs.
h. Inner Dome Color: Colorless.
i. Inner Dome Color: White.
NOTE ** Delete all but one of the following three paragraphs. The first is the standard curb; the second is a curb for use on metal roofs. The third is only for dome-type hatches for standing seam metal roofs.
3. Curb: 0.090 inch (2.3 mm) thick aluminum, with integral cap flashing, banded hardboard insulation and 3 inch (75 mm) mounting flange.
C. Heat and Smoke Vents - Double Leaf: Automatically operated, mechanical type, factory-assembled.
1. UL listed.
2. FM listed.
3. UL and FM listed.
NOTE ** Delete one of the following. The first is the standard curb. The second is for use on metal roofs and is FM approved only.
4. Curb: 0.125 inch (3 mm) aluminum walls, with integral cap flashing, self-flashing, with 4 inch (100 mm) wide mounting flange.
5. Curb: 14 gage (1.9 mm) galvalume inner wall panel and 24 gage (0.6 mm) galvalume outer wall panel, and fiberglass insulation; metal roof accessory kit furnished by manufacturer.
NOTE ** Delete the following paragraph if not required.
6. Curb and Frame: Thermalized for condensation control.
7. Lids: Insulated, metal.
8. Lids: Plastic dome.
a. Type: Single dome.
b. Type: Double dome.
NOTE ** Delete one of the following two paragraphs. Acrylic is FM approved; polycarbonate is required for UL approval.
c. Domes: Acrylic plastic glazing.
d. Domes: Polycarbonate plastic glazing.
e. Outer Dome Color: Colorless.
f. Outer Dome Color: White.
g. Outer Dome Color: Bronze.
h. Outer Dome Color: Grey.
NOTE ** Delete the following two paragraphs if single dome skylight has been specified. Otherwise, delete one of the two paragraphs.
i. Inner Dome Color: Colorless.
j. Inner Dome Color: White.
9. Operation:
a. Open lid automatically upon fusing of fusible link assembly.
b. Open force sufficient to open despite 10 psf (4.8 kPa) snow or wind load.
c. Positively lock in the wide open position.
d. Hold lid closed when subjected to up to 30 psf (14.4 kPa) wind uplift pressure.
e. Automatically lock lid when manually closed.
10. Finish: Manufacturer's standard mill finish.
11. Hardware:
a. Connect lid to curb with pintle hinges.
b. Provide dampening devices to prevent failure of curb and frame due to stress produced by lid opening forces.
c. Lid latch: Rotary slam type; allow lid to be manually opened from inside by a single release without disturbing the latch-fusible link assembly.
NOTE ** Delete one of the following two paragraphs. Coordinate temperature required with fire alarm and suppression systems and local codes.
d. Fusible link: 165 degree F (74 degree C) UL listed.
e. Fusible link: 212 degree F (100 degree C) UL listed.
NOTE ** Delete the following if not required. Inside release is mandatory.
f. Additional outside manual release.
g. Operating and latching mechanisms completely enclosed within unit and not exposed to weather.
12. Applicable approval labels attached to each unit.
13. Size: As indicated on drawings.
14. Size: __________, inside curb dimension.
D. Heat and Smoke Vents - Single Leaf: Automatically operated, mechanical type, factory-assembled.
1. FM listed.
2. Curb: 0.125 inch (3 mm) aluminum back wall, 0.080 inch (2.0 mm) aluminum side and front walls, with integral cap flashing, self-flashing, with 4 inch (100 mm) wide mounting flange.
NOTE ** Delete the following paragraph if not required.
3. Curb and Frame: Thermalized for condensation control.
4. Lids: Insulated, metal, with 1 inch (25 mm) board insulation.
5. Lids: Plastic dome.
a. Type: Double dome.
b. Outer Dome: Polycarbonate plastic glazing.
c. Inner Dome: Acrylic plastic glazing.
d. Outer Dome Color: Colorless.
e. Outer Dome Color: White.
f. Outer Dome Color: Bronze.
g. Outer Dome Color: Grey.
h. Inner Dome Color: Colorless.
i. Inner Dome Color: White.
6. Operation:
a. Open lid automatically upon fusing of fusible link assembly.
b. Open force sufficient to open despite 10 psf (4.8 kPa) snow or wind load.
c. Positively lock in the wide open position.
d. Hold lid closed when subjected to up to 30 psf (14.4 kPa) wind up-lift pressure.
e. Automatically lock lid when manually closed.
7. Finish: Manufacturer's standard mill finish.
8. Hardware:
a. Connect lid to curb with pintle hinges.
b. Lifting mechanism: Main springs, plus gas springs providing dampening to prevent failure of curb and frame due to stress produced by lid opening forces.
c. Lid latch: Rotary slam type; allow lid to be manually opened from inside by a single release without disturbing the latch-fusible link assembly.
d. Fusible link: 165 degree F (74 degree C) UL listed.
e. Fusible link: 212 degree F (100 degree C) UL listed.
NOTE ** Delete the following if not required. Inside release is mandatory.
f. Additional outside manual release.
g. Operating and latching mechanisms completely enclosed within unit and not exposed to weather.
9. Applicable approval labels attached to each unit.
10. Size: As indicated on drawings.
11. Size: __________, inside curb dimension.
NOTE ** The following heat and smoke vents are not either UL or FM labelled.
E. Heat and Smoke Vents: Automatically operated, mechanical type, factory-assembled.
1. Curb: 0.125 inch (3 mm) aluminum walls, with integral cap flashing, self-flashing, with 3 inch (75 mm) wide mounting flange.
2. Curb: 18 gage (1.2 mm) galvalume inner wall panel and 24 gage (0.6 mm) galvalume outer wall panel, and fiberglass insulation; metal roof accessory kit furnished by manufacturer.
3. Curb Height: 9 inches (230 mm).
4. Curb Height: 12 inches (305 mm).
5. Lid Frame: 0.078 inch (2.0 mm) thick aluminum, secured directly to curb with pintle hinges.
6. Lids: Insulated, 0.080 inch (2.0 mm) thick aluminum, with 1 inch (25 mm) board insulation.
7. Lids: Plastic dome.
a. Type: Single dome.
b. Type: Double dome.
c. Domes: Acrylic plastic glazing.
d. Outer Dome Color: Colorless.
e. Outer Dome Color: White.
f. Outer Dome Color: Bronze.
g. Outer Dome Color: Grey.
h. Inner Dome Color: Colorless.
i. Inner Dome Color: White.
8. Operation:
a. Open lid automatically upon fusing of fusible link assembly.
b. Open lid automatically when inside air pressure exceeds that required by local code.
c. Positively lock in the wide open position.
d. Automatically lock lid when manually closed.
9. Finish: Manufacturer's standard mill finish.
10. Fusible Link: 165 degree F (74 degree C) UL listed.
11. Fusible Link: 212 degree F (100 degree C) UL listed.
NOTE ** Delete either of the two following paragraphs if not required.
12. Double lifting arms.
13. Additional outside manual release.
14. Size: As indicated on drawings.
15. Size: __________, inside curb dimension.
F. Heat and Smoke Vents - Drop-Out Dome Type: Heat activated type, factory-assembled.
1. FM approved.
2. Frame: Extruded aluminum with integral condensation gutter.
3. Curb: Double aluminum wall construction with 3/4 inch (19 mm) insulation and 3 inch (74 mm) wide roof flange.
4. Curb: 18 gage (1.2 mm) galvalume inner wall panel, 24 gage (0.6 mm) galvalume outer wall panel, and insulation; adaptable to standing seam roof without field welding, cricket on upper short side.
5. Curb: 18 gage (1.2 mm) galvalume outer wall panel and vinyl-faced fiberglass insulation; on low side match standing seam roof; mounting flange for inside fastening; cricket at upper side.
6. Double dome type, acrylic plastic.
a. Outer Dome Color: Colorless.
b. Inner Dome Color: Colorless.
c. Inner Dome Color: White.
7. Operation: Heat activated inner dome drops out in less than five minutes at 500 degrees F (260 degrees C) when subjected to standard Factory Mutual fire exposure test.
8. Finish: Manufacturer's standard mill finish.
9. Applicable approval labels attached to each unit.
10. Size: As indicated on drawings.
11. Size: __________, inside curb dimension.
NOTE ** Explosion Relief Vents are also available. Contact Naturalite with specific design criteria.
G. Explosion Relief Vents:
PART 3 EXECUTION
3.1 EXAMINATION
NOTE ** DRAWING COORDINATION: The drawings should indicate the locations, types, and dimensions of the hatch and vent units, and show details of interface with adjacent construction.
A. Take field measurements to verify that fabricated work will fit spaces intended.
B. Verify that areas in which work is to be installed are ready for installation and that curbs are installed and level.
C. Do not proceed until unsatisfactory conditions have been corrected.
3.2 INSTALLATION
A. Install in strict accordance with manufacturer's instructions and recommendations and with approved shop drawings; provide a complete weatherproof assembly.
NOTE ** The following paragraph coincides with the NRCA recommendation for roof-mounted units and curbs.
B. Maintain dimension from top of curb to finish roofing of 8 inches (200 mm), minimum; provide additional blocking if required.
C. Anchor securely to supporting structure, but allow for differential and thermal movement.
D. Separate aluminum members from dissimilar metals with protective coating or sheet capable of preventing electrolytic action.
E. Coordinate with other work.
3.3 CLEANING AND REPAIR
A. Do not remove the "risk of fall" label from dome units.
B. Remove labels, part number markings, sealant smears, handprints, and construction dirt; protect installed work from damage.
C. Clean all exposed surfaces immediately prior to final inspection, using non-abrasive materials and methods recommended by manufacturer.
D. Repair damaged components and finishes in accordance with manufacturer's recommendations; replace work that cannot be repaired to the satisfaction of the Architect.
