Did you know?
15% of the total thermal energy of an average residential building is lost through wooden windows.
Fenex Windows are the best choices for heat economy in your building. Conductivity of the windows are summarized in the below tables.
Our windows are evaluated by independent laboratories according to European normes. The conformity to highest requirements is documented.
The tests carried on our sample consists of the following points:
- Wind load resistance acording to EN 12210 and EN 12211.
- Watertightness according to EN 1027 and EN 12208.
- Air permeability according to EN 1026 and EN 12207.
- Load – bearing capacity of safety device according to EN 14351-1 and EN 14609.
- Thermal insulation according to EN ISO 10077-1.
- Sound insulation according to EN 14351-1.