SECTION 07724

ROOF HATCHES

PART 1 GENERAL

SECTION INCLUDES

Prefabricated roof hatches [, with integral support curbs,] operable hardware, and counterflashings.

[Fire] [Smoke] rated vents, with release mechanism.

PRODUCTS INSTALLED BUT NOT FURNISHED UNDER THIS SECTION

Section [_____-__________]: Supply of counter flashing for placement by this Section.

RELATED SECTIONS

[Section 05500 - Metal Fabrications: Metal curb.]

[Section 06100 - Rough Carpentry: Wood curb.]

Section [______-____________]:	Roof system.

Section 07620 - Sheet Metal Flashing and Trim: Flashing to roof system.

Section 07710 - Prefabricated Roof Specialties.

Section 07810 - Plastic Skylights.

[Section 09900 - Painting:	Field painting.]

[Section [______-____________]: Connection of [hatch] [vent] release mechanism to building [fire] [smoke] alarm system.]

SUBMITTALS

Submit under provisions of Section [01300] [________].

Product Data: Provide data on unit construction, sizes, configuration, jointing methods and locations when applicable, and attachment method.

Manufacturer's Installation Instructions: Indicate special installation criteria, interface with adjacent components.

REFERENCES

Underwriters Laboratories (UL) - Fire Hazard Classifications.

Factory Mutual Engineering Corporation (FM):	Roof Assembly Classifications.

REGULATORY REQUIREMENTS

Conform to [applicable] [___________] code for UL and FM requirements as applicable to fire rated [roof hatches] [[heat] [smoke] vents].

Provide certificate of compliance from [authority having jurisdiction [________________] indicating approval of [fire] [smoke] rated units.

PART 2 PRODUCTS

MANUFACTURERS

[________________________________] Product [_________].

[________________________________] Product [_________].

[________________________________] Product [_________].

Substitutions: Under provisions of Section [01600] [________].

ROOF [HATCH] [VENT]

Unit: [__ x __] inch ([__ x __] mm) size, [single] [double] leaf type, [listed by [FM] [UL] [____]].

Integral Steel Curb:	[14] [____] gage ([2] [____] mm) [galvanized] [prime painted] steel with [____] inch ([____] mm) rigid [glass fiber] [foam] insulation; integral cap flashing to receive roof flashing; extended flange for mounting.

***** [OR] *****

Integral Aluminum Curb: [11] [____] gage ([3] [____] mm) mill finished aluminum; [____] inch ([____] mm) rigid [glass fiber] [foam] insulation; integral cap flashing to receive roof flashings; extended flange for mounting.

Flush Steel Cover: [14] [____] gage ([2] [____] mm) [galvanized] [prime painted] steel; [1] [____] inch ([25] [____] mm) [glass fiber] [foam] insulation; sandwiched by [22] [____] gage ([0.8] [____] mm) steel interior liner; continuous [neoprene] [vinyl] gasket to provide weatherproof seal.

***** [OR] *****

Flush Aluminum Cover: [11] [____] gage ([3] [____] mm) mill finish aluminum; [1] [____] inch ([25] [____] mm) [glass fiber] [foam] insulation; sandwiched by [18] [____] gage ([1] [____] mm) aluminum] interior liner; continuous [neoprene] [vinyl] gasket to provide weatherproof seal.

***** [OR] *****

Skylight Cover: Single thickness dome, of [convex] [pyramidal] [________] shape; [clear] [translucent] [________] color [acrylic] [polycarbonate]; capable of supporting [40] [____] psf ([1.92] [____] KPa) live load; continuous [neoprene] [vinyl] gasket to provide weatherproof seal.

****** [OR] ******

Skylight Cover: Double thickness dome, of [convex] [pyramidal] [________] shape; outer dome of [clear] [translucent] [________] color [acrylic] [polycarbonate]; inner dome of [clear] [translucent] [________] color [acrylic] [polycarbonate]; capable of supporting [40] [____] psf ([1.92] [____] KPa) live load; continuous [neoprene] [vinyl] gasket to provide weatherproof seal.

Hardware:

Compression spring operator [and shock absorbers];

Steel manual pull [handle] [ring] for interior [and exterior] operation;

Steel hold open arm with [vinyl covered] grip handle for easy release,

Components [cadmium plated] [________] finish;

[Automatic opening upon break of [160] [____] degree F ([71] [____] degree C) fusible link] [Automatic opening upon activation of [fire] [alarm] system].

[Padlock hasp.]

Hinges: [Manufacturer's recommended type] [Heavy duty pintle type].

FABRICATION

Fabricate components free of visual distortion or defects. Weld corners and joints.

Provide for removal of condensation occurring within components or assembly.

Fit components for weathertight assembly.

PART 3 EXECUTION

INSTALLATION

Install in accordance with manufacturer's instructions.

Coordinate with installation of roofing system and related flashings for weathertight installation.

Apply bituminous paint on surfaces of units in contact with cementitious materials or dissimilar metals.

END OF SECTION