General Construction Specifications
SECTION 07724
ROOF HATCHES
PART 1 - GENERAL
1.01 SECTION INCLUDES
A. Prefabricated roof hatches, with integral support curbs, operable hardware, and counterflashings.
B. Fire and/or smoke rated vents with release mechanism.
1.02 RELATED SECTIONS
A. Section 05500: Metal Fabrications - metal curb.
B. Section 06100: Rough Carpentry - wood curb.
C. Section 07512: Built-up Coal Tar Roofing System.
D. Section 07710: Prefabricated Roof Specialties.
E. Section 09900 - Painting - field painting.
1.03 SUBMITTALS
A. Submit under provisions of Section 01300.
B. Product Data: Provide data on unit construction, sizes, configuration, jointing methods and locations when applicable, and attachment method.
C. Manufacturer's Installation Instructions: Indicate special installation criteria, interface with adjacent components.
1.04 REFERENCES
A. Underwriters Laboratories (UL) - Fire Hazard Classifications.
B. Factory Mutual Engineering Corporation (FM): Roof Assembly Classifications.
1.05 REGULATORY REQUIREMENTS
A. Conform to standard building code and all other applicable codes for UL and FM requirements as applicable to fire rated roof hatches and/or heat smoke vents.
B. Provide certificate of compliance from authority having jurisdiction indicating approval of fire, smoke rated units.
PART 2 - PRODUCTS
2.01 MANUFACTURERS
A. Bilco.
B. Babcock Davis Hatchways, Inc.
C. Dur-Red Products.
D. Milcor.
E. Substitutions: Under provisions of Section 01600.
2.02 ROOF HATCH VENT
A. Units as sized and indicated on the contract drawings.
B. Integral Aluminum Curb: 11 gage mill finished aluminum; 1 inch rigid glass fiber insulation; integral cap flashing to receive roof flashings; extended flange for mounting.
C. Flush Aluminum Cover: 11 gage mill finish aluminum; 1 inch glass fiber insulation; sandwiched by 18 gage aluminum interior liner; continuous neoprene gasket to provide weatherproof seal.
D. Hardware:
Compression spring operator and shock absorbers.
Steel manual pull handle for interior and exterior operation.
Steel hold open arm with vinyl covered grip handle for easy release.
Components all stainless steel.
5. Automatic opening upon break of 160 degree F fusible link.
Padlock hasp.
E. Hinges: Manufacturer's recommended type.
2.03 FABRICATION
A. Fabricate components free of visual distortion or defects. Weld corners and joints.
B. Provide for removal of condensation occurring within components or assembly.
C. Fit components for weathertight assembly.
PART 3 - EXECUTION
3.01 INSTALLATION
A. Install in accordance with manufacturer's instructions.
B. Coordinate with installation of roofing system and related flashings for weathertight installation.
C. Apply bituminous paint on surfaces of units in contact with cementitious materials or dissimilar metals.
END OF SECTION
