You can be confident that your window and door systems are properly installed by our registered Internorm installers, especially when excellent care is needed for Passive House construction. In passive houses, windows have to be installed in the insulating level of the outer components, with particular care being given to an airtight connection to the component in order to avoid thermal bridges.
An additional over-insulation of the frame significantly reduces heat loss.
The decision must be made whether to install the windows before or after applying the thermal insulation.
