Newly certified Manufacturers Certification criteria

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Designo

Certified since 13 Mart 2017
Climate zone Cool, temperate
Type Attic staircase
Sub type
Efficiency class phA+
Material Timber
UW 0.63 W/(m2K)
Open type

Description

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)
Head 35 mm 0,93 W/(m²K) 0,000 W/(mK)
Jamb 35 mm 0,93 W/(m²K) 0,000 W/(mK)
Marker
Roto Frank Treppen GmbH
Gutenbergstrasse 21, 86356, Neusäss, Germany
Legend
Manufacturer
Leaflet © OpenStreetMap contributors
1053ah03
English
Deutsch
Gutenbergstrasse 21
86356 Neusäss
Germany

U-value calculation

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