Ventilation window (CWT), top guided, wood/aluminium

The ventilation window differs from the 3-layer glass window, as it consists of a 6mm internal glass pane and a 2 layer energy glass pane facing the exterior, in which valves are milled discreetly into the frame/sash of the gap between the 6mm internal glass pane and the 2 layer energy window glass facing the exterior. The air valves have been developed and tested in Denmark so that they specifically fit the Danish building regulations and adapt themselves to the severe Danish weather conditions. The fresh air enters through the air valves in the bottom frame of the outer frame. From here, the air is preheated as it moves up between the inner glass pane and the outer 2layer glass. The gap between the inner glass pane and the outer 2-layer glass is called the ventilation chamber. A set of valves which automatically regulate the air flow into the building are installed in the upper frame. The valves do not require electricity. They are controlled by wax thermostats - called actuators - which adjust themselves according to the outside temperature and the temperature in the ventilation chamber. They expand in heat and contract in cold and thereby open and close the valves depending on the outside temperature and the temperature in the ventilation chamber. The thermostat is sealed with a membrane, so it requires no maintenance. Extraction from either a simple exhaust or an exhaust heat pump helps ensure that the air supply occurs through the ventilation window. This eliminates the need to open windows for ventilation. By creating negative pressure in the home, the ventilation window ensures the necessary air supply. A top guided window opens from the bottom and outward and slides slightly downwards by opening mechanisms located in the jambs. The sash is held in its opening position by friction slides and operated with a single espagnolette handle. Additionally, this type of window saves space since the window opens outward and therewith doesn't encroach on the interior space, making it suitable for areas with limited space.

Categorie(s): Windows & Doors

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Issue date:
2025
Validity
2030
Declared/Functional Unit:
1 m2
Number of declared datasets in the EPD:
1

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