Verification of quality

Strict and consistent compliance with proper manufacturing procedures is of utmost importance to ensure the highest quality laminated wood products for our windows and doors.
All of our suppliers are certified by the I.F.T. Rosenheim, an internationally recognized testing institute for window technologies; or other established institutes for building science and research in Germany. They continuously test in their laboratories product samples from all certified lumber mills across Europe.

The testing program include:

  • strength testing
  • control of the temperature resistance up to 176 Fahrenheit ( 80° Celsius )
  • control of adhesive quality and water infiltration resistance according to EN 204 D4 (European norm)
All products from our certified suppliers are subject to continuous control by established testing institutes for building sciences and research in Germany.