Newly certified Fabricantes Certification criteria

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Certified since 13 de marzo de 2017
Climate zone Frío, templado
Tipo Attic Staircase
Efficiency Class phA+
Material Madera
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.

Nombre 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)

Roto Frank Treppen GmbH

Gutenbergstrasse 21
86356 Neusäss

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