Use loft access door and frame with accompanying protection against fire. Introduction Two styles of loft hatch are manufactured with a fire integrity rating of one hour or two hours.The Cavi60 Type PC Lofthatch is prefixed with Cavi 60 to identify it achieved 60 minutes fire integrity when tested to the principles of BS 476:Pt 22:1987.The Cavi120 Type PC Lofthatch is prefixed with Cavi 120 to identify it achieved 120 minutes fire integrity when tested to the principles of BS 476:Pt 22:1987.Both options are already painted and ready for immediate building-in. An optional insulating layer with an adiabatic classification of .35 is available for use with both models of Lofthatch.The pre-cut insulating layer instantly attaches and is retained to the upper surface of the door to provide enhanced thermal benefit. size Where the door sits within the frame the opening dimension is 745mm x 530mm.The frames into which the door closes incorporates a plain surround that extends 25mm over the adjacent plasterboard ceiling finish.See section for positioning and trimming views. Data Electro galvanised steel door and frame.Full supporting width hinge with three release bolts.Knauf Fireshield. 3mm x 10mm resis-seals polyurethane fr. Supplied individually boxed. 60 minutes fire integrity rating. Insulated drop down door. Locking facility. Colour White RAL 9010 fine texture SKU: N/A Category: Closers
