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Certified since March 13, 2017
Climate zone Cool, temperate
Type Attic Staircase
Efficiency Class phA+
Material Timber
UW 0.63 W/(m2K)
Open type


PU - high performance insulation (0.024 W/(mK)) betweeen two thin coated chipboard panels. 6-point windowframe-locking with circumferential TPE-gasket. Metal-fittings mounted at the hatch box of chipboard. In order to reduce the thermal bridge of the installation, a polystyrene-particle foam granulate (0.033 W/(mK)) is inserted in the joint.

Name Frame width U-Value Ψ-Value Frsi-Value
Bottom 35 mm 0.93 W/(m²K) 0.000 W/(mK)
Top 35 mm 0.93 W/(m²K) 0.000 W/(mK)
Lateral 35 mm 0.93 W/(m²K) 0.000 W/(mK)
Gutenbergstrasse 21
86356 Neusäss

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