Certifications: RHG 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 in-cludes 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.