Potter-Roemer Roof Hatch 48 x 48 SteelPotter-Roemer Roof Hatch 48 x 48 Steel Specifications:Potter-Roemer Roof Hatch Curb Construction:• 14 gage (G 90) galvanized steel with durable recoatable gray primer finish standard.• 12" (304mm) in height with a 4" (101mm) fiber board insulation, and mounting holes for roof attachment.• Also has integral cap flashing of the same material and thickness as the curb.• Curb and cap flashing are fully welded at the corners for a watertight construction.• Hinges are two-piece formed steel, with a non-removable heavy-duty pivot pin.Potter-Roemer Roof Hatch Cover:• 14 gage (G 90) galvanized steel, with radused corners for safety, and are fully welded at the corners for watertight construction.• 22 gage cover liner.• 1" (25.4mm) thick fiberglass insulation, reinforced as required to support a 40#/ft square live load.• An extruder rubber gasket, mechanically fastened to the inside of the lid causes the hatch lid to seal.Potter-Roemer Roof Hatch Hardware:• Interior handle with a positive, one-point locking mechanism.• Exterior handle• Provisions for a padlock, both inside and out• Pre-lubricated compression springs, encased in zinc-plated telescopic tubes, for smooth and controlled door operation at any position.• Automatic, hold-open arm, with vinyl grip is standard.• All hardware is corrosion resistant and all fasteners are of a self-locking type.
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