Aluminum Roof Hatches 28x28inch

Specifications Material: Both the cover and frame are made of 2mm aluminum. Cover: Insulation layer for effective heat retention. Height: Overall height 13.6 inches (345 mm). Sealing gasket: Extruded EPDM (ethylene propylene diene monomer) sealing gasket. Hinges: Stainless steel hinges. Latch: Slam latch with an internal rotating handle and padlock ring. Opening assist: Compression spring assist encapsulated within the telescopic tube. Equipped with an automatic opening positioning arm; the lock can be released by operating the handle. The outer side is equipped with a latch; pressing the switch opens the cover. Surface Treatment: Natural aluminum finish (mill finish) and coated finish for corrosion and salt spray resistance. Features: Engineered with gas struts for smooth, easy, one-handed operation, regardless of size. Automatic hold-open arm locks the cover in the open position to ensure safe egress. Overlapping cover design, fully welded corners on cover and curb, EPDM rubber gasket, and fully insulated cover and curb ensure weather tightness and energy efficiency. Constructed with corrosion-resistant materials to provide many years of trouble-free, dependable service. Heavy gauge construction and positive latching mechanism maintain building security.