Centre pivot wooden roof window with ventilation valve
Strength meets convenience.
The AXIS90 AVY B900 roof window is designed with a reinforced frame, ensuring durability and long-lasting performance for your home. It also includes a convenient ventilation valve located at the top of the sash. This smart feature enables you to ventilate your space effectively without the need to open it.
While its double glazing boosts overall safety, the external aluminium cladding in grey (RAL 7043) adds a touch of modern elegance.
The AVY B900 roof window can be installed in roof pitches ranging from 15 to 90 degrees.
Enjoy additional peace of mind with our 10-year warranty.
Available sizes
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Window features
Centre pivot wooden roof window with ventilation valve

Optimal thermal insulation
Equipped with 24 mm double glazing, AXIS90 roof windows guarantee good thermal insulation and low emissivity, which reduces heat loss in winter and limits overheating in summer.

Bottom handle
Made of moulded zinc, the handle has three positions - one is fully closed, and two further opening positions allowing ventilation on demand.

Nordic pine wood
The wooden frames are made from sustainably sourced pine wood and treated with fungicide and insecticide protection, followed by a coat of water-based varnish.

Made in Europe
AXIS90 roof windows are manufactured in Europe in a certified (ISO 9001, ISO 14001, OHSAS 18001) production facility, which uses the latest technology to ensure the best industrial, environmental and labour standards.
Technical parameters
Available sizes
- C2A
- 55 x 78 cm
- C4A
- 55 x 98 cm
- F6A
- 66 x 118 cm
- M4A
- 78 x 98 cm
- M6A
- 78 x 118 cm
- M8A
- 78 x 140 cm
Properties
- roof pitch angle
- 15–90°
Glazing package
- Number of Inter-Pane Cells / Number of glasses
- 1/2
- glazing unit design
- 4-16-4H
- Noble gas
- Argon
- low-e coating [ pcs ]
- 2
- Ug [ W/m²K ] for Pane
- 1.0 W/m²K
General features
- Center pivot window, bottom opening
- Yes
- Window Material
- Wood
- Number of Gaskets [ pcs ]
- 2
- Guarantee
- 10 years
- Ventilation Valve
- yes