Knee Wall Access Door

  • DWK


    • Fully assembled and ready for quick installationready for quick installation
    • 3 year warranty3 year warranty
    DWK
    • 0,19 BTU/hft²F loft ladder hatch U-value 1 1/8 insulation thickness 5.2 attic ladder 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.
  • DWF


    • Fully assembled and ready for quick installationready for quick installation
    • Fire - resistant hatchfire classification as per EN 13501:2 - EI145
    • 3 year warranty3 year warranty
    DWF
    • 0,11 BTU/hft²F loft ladder hatch U-value 2 3/8 insulation thickness 8.9 attic ladder 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.
  • DWT


    • Fully assembled and ready for quick installationready for quick installation
    • 3 year warranty3 year warranty
    DWT
    • 0,11 BTU/hft²F (0.6 W/m²K) loft ladder hatch U-value 2 3/8 insulation thickness 9.5 attic ladder R-value

    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).

 

KNEE WALL ACCESS DOOR DIMENSIONS   21 x 31 27 x 35
Rough opening AxB 21½ x 31¼ 27½ x 35¼
Frame external dimensions WxL 21 x 31 27 x 35
Frame internal dimensions MxN 19 x 28¾ 24¾ x 32¾
Frame depth S 3 3
Frame thickness Z 1 1

 

 

 

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