HATCH

Certifications: SH models include components or materials that are ASTM certified under Specifications A792/A792M-06a; A653/A653M-06a; C726-05 and A36/A36M-05).

Load/Deflection: Roof hatch cover has been tested and approved to support a minimum live load or 40 lbs/ft² with a maximum deflection of 1/190th of the span, maximum negative load of 50 lbs/ft² wind uplift, and 110 mph wind load when cover is in upright position.

Insulation:The curb includes 1" fiberboard insulation surrounding the base. The cover has 1" fiberglass insulation in the space between the exterior cover and liner.

Construction: Hatch is 14 gauge galvanized steel with 12" high curb and 4" wide flange for securing to roof deck. The cover includes a 14 gauge galvanized steel exterior and 22 gauge liner with an EPDM gasket door seal.

Hardware: Hardware includes a heavy-duty hinge, heavy-gauge automatic hold-open arm with red grip, compression-operated shock-absorbing cylinders, exterior handle with integral padlock hasp and interior latching handle with padlock hasp.

Finish: Hatch - Bonderite™ pre-treated gray hammertone powder coat finish.

RAIL

Certifications: Rail meets OSHA-required compliance for safe egress and ingress through rooftop hatch openings while hatch is in use. Complies with OSHA CFR 29-1910.232 and CFR 29-1910.27.

Construction: Rail is 1-5/8" OD A53 grade B seamed galvanized steel with plastic rail and post caps. Rail support brackets are welded to the curb. Posts are mechanically-secured to the brackets.

Hardware: Safety chain is zinc-plated 3/16" ASTM chain with quick links and hoops.

Finish: Durable Safety Yellow powder coat finish.

Options: Gate, Rigid galvanized spring-closing gate gravity-operated.
Hatch Safety Warning Light, battery-powered flashing warning alert light.