Guarantee both reliable fire safety and security in shared accommodation with Manthorpe's innovative fire-rated square lockable loft access door. Supplied with a budget lock and T key, this square loft access door can be locked to prevent unwanted access to the loft space and items stored within. This square loft access door is manufactured with draught seals at all four sides, sealing to the frame and latching securely closed, ensuring no moist, warm air can enter the loft space and damage items or the roof structure. The one-hour fire rating has been tested and certified by Chiltern International Fire Ltd. for total peace of mind. Crafted in powder-coated mild steel, this handy square fire-rated loft door is designed with mineral wool insulation that offers a uValue of 0.35 W/m²K. Manthorpe Fire Rated Lockable Loft Door Specification Frame fitting size: 531mm x 531mmOpening size: 515mm x 515mmVisible Size: 580mm x 580mmMaterial: Zinc Electro-Galvanised Mild SteelInsulation: Mineral WoolColour: WhiteU-Value: 0.35W/(Km2)Fire Rated: 1 Hour