wood window


BestValue triple-glazing Uw 0,77
BestValue double-glazing Uw 1,2


BestValue triple-glazing Uw 0,73

Even stronger and sturdier – featuring solid wood thickness MASSIVA stands for highest stability and safety. Suitable for passive homes, the “toughest” innovation by Katzbeck – the specialist for woodaluminium and wood windows – is convincing through its 100 percent natural insulation. Burglary arrest details and very high stability of the casements, frames, and fittings, as well as extraordinarily strong laminated safety glass create a feeling of absolute security within your own home for a very long time.

MASSIVA exterior
Section MASSIVApassiv
MASSIVA interior
MASSIVA exterior
MASSIVA window
MASSIVApassiv window
detail 1
detail 2
detail 3
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