TDI 0.35 Loft Hatch
Achieves 0.35 U-value to comply with new Building Regulation document L1 & L2 as required by the robust detail.
Clear opening 600mm x 532mm (Overall size 733 x 656mm).
Injection moulded Rigid Polypropylene outer hatch, no welded corners.
Attractive moulded ceiling architrave surround and trap door sculpture, easy access for loft ladders, simple to fit, supplied in box with fitting instructions.
Fix frame to timber with 8 x 32mm No.10 countersunk rust-proof steel screws (2 per side).
Meets all Building Regulations for insulated loft hatches.
Factory assembled for easy fitting.
Robust Details which came into force 1st April 2002. DETR Building Regulations loft hatch 8.04.
Ensure that loft hatch is fully draught stripped. Counterbearers and boarding should be provided if access to loft is required. Note that U-value through loft hatch must be no worse than 0.35Wm2K (poorest acceptable U-value).