Glidevale AH5 loft hatches are hinged to drop down from the ceiling. Twin latches hold the hinged hatch in place with two hinges operating the opening mechanism. Glidevale AH5 Hinge-Down loft hatches are manufactured from injection-moulded polypropylene and offer 0.35 W/m2K to be compliant with Part L, thanks to an insulated loft hatch.Each Glidevale AH5 Part L loft hatch is manufactured under BS EN ISO 9001 to meet the demands for the requirements of loft hatches as outlined in Building Regulations Approved Documents L and C. By meeting these requirements its certified that Glidevale AH5 loft hatches offer high performance, reduce heat loss and reduce risk of condensation. The thermally insulated hatch continues the loft insulation or ceiling insulation to reduce heat loss, and seals around the loft hatch works towards reducing the risk of condensation as they reduce water vapour migration. Glidevale AH5 Part L Hinge Down Loft Hatch Specification Accessible Clearance Opening: 600mm x 520mmTrimmed Opening Size: 717mm x 555mmOperation: Hinge-Down