0,19 BTU/hft²Floft ladder hatch U-value1 1/8insulation thickness5.2access door R-value
The Knee Wall Access Door DWK is intended to be built into L-shaped walls. Superb thermo-insulating parameters R-value 5.2 along with high air tightness keep heat-loss to a minimum. The Knee Wall Access doors may be installed in right or left opening versions. As standard the door is provided with lining slats.
ready for quick installation
fire classification as per EN 13501:2 - EI145
3 year warranty
0,11 BTU/hft²Floft ladder hatch U-value2 3/8insulation thickness8.9access door R-value
The DWF fire-resistant Knee Wall Access Doors are intended primarily for installation in vertical walls. These doors ensure access to non-habitable rooms located behind vertical wall as well as protect for 45 minutes against the spread of fire (classification as per EN13501 – EI145). The DWF Knee Wall Access Doors are universal, hence they can be installed with left as well as right direction of opening. Sash with a thickness of 2 5/8" made of pinewood veneered on both sides with HDF board in white filled with mineral wool.
The DWT Knee Wall Access Doors are new and highly energy efficient design. The 2 5/8" thick sash fully filled with thermo-insulating material, provides an excellent barrier reducing heat loss (R-value 9.5). The doors as standard are equipped with handle and finishing lining. The doors can be installed in two versions of opening (right or left).