Fakro 869600 DWT Wall Hatch 21 in. x 31 in. Wooden Thermo Insulated Access Door

The DWT Highly Energy Efficient L-Shaped Doors are designed primarily for installation in L-shaped walls. They provide access to the room behind and at the same time constitute an excellent barrier against heat loss heat transfer coefficient U = 0.6 W / m2K * and guarantee high tightness. The door can be installed in the right or left side and as standard equipped with wooden architrave lining in natural colour. Universal handle with lock. Rubber seal to ensure full air tightness. 6.6cm thick sash white on both sides. Architrave lining 3.5cm wide with heat transmission co-efficient U Value = 0.6 W/m2k with insulation thickness 6cm.