The best aluminum roof hatch in the industry - Durable & Weather Resistant! This
heavy duty WB Aluminum Roof Hatch offers improved features such as a heavier duty lock and handle assembly, rust resistant aluminum, weather-resistant
gasket and fully concealed hinge hardware located on the interior making rust unlikely. This premium roof hatch / access door is perfect for
hotels, apartments, hospitals or any location where access to a ceiling/roof is necessary. Pre-lubricated compression springs, encased in zinc-plated
telescopic tubes held in place by 3-sided welded brackets. Durable and re-coatable gray primer finish comes standard. Heavy duty .125 rust
resistant aluminum. This roof hatch comes standard in sizes 24x24, 30x54, 30x96, 36x30, 36x36, 36x48 and 48x48. Manufactured for The Williams
Brothers Corporation of America - MADE IN USA. Click here to see what makes Williams Brothers roof hatches the best in the industry. Most Orders Ship Same or Next Day
• .125 Aluminum
• Durable re-coatable gray primer finish
• Highly visible safety caution striping
• Heavy duty lock and handle
• Weather resistant gasket
• Finest quality and craftsmanship
• Lower cost galvanized steel version available here
General: Roof access hatch shall be model WB-RH 30x36 steel manufactured exclusively for The Williams Brothers Corporation
of America, with a durable, re-coatable gray primer finish. A yellow and black striped visual warning signal shall be on top of curb
and on inside of lid.
Curb Construction: Curb shall be 14 gauge (G 90) galvanized steel with durable re-coatable gray primer finish standard.
Curb shall be 12" (304mm) in height with a 4" (101mm) fiber board insulation, and mounting holes for roof attachment. Curb shall have
integral cap flashing of the same material and thickness as the curb. Curb and cap flashing shall be fully welded at the corners for
a watertight construction. Hinges are two-piece formed steel, with a non-removable heavy-duty pivot pin.
Covers: Cover shall be 14 gauge (G 90) galvanized steel, with radius corners for safety, and shall be fully welded
at the corners for watertight construction. The cover liner shall be 22 gauge. The cover shall be insulated with a 1” (25.4mm) thick
fiberglass insulation, and reinforced as required to support a 40#/ft square live load. An extruded rubber gasket, mechanically fastened
to the inside of the lid shall cause the hatch lid to seal.
Hardware: Hardware shall include interior handle, with a positive, one-point locking mechanism, exterior
handle, and provisions for padlock, both inside and out. Pre-lubricated compression springs, encased in zinc-plated telescopic tubes,
for smooth and controlled door operation at any position. An automatic, hold-open arm, with vinyl grip, shall be standard. All hardware
shall be corrosion resistant, and all fasteners shall be of a self-locking type.
• Special Sizes - available on request