Weather tightness with VELFAC 200 DGU (AWW testing)
VELFAC windows are tested for weather resistance in terms of:
- air permeability
- water tightness
- wind restistance
The VELFAC 200 system has gone through a comprehensive range of tests to ensure it meets British and European test standards.
Please find the test results in the DoP document for VELFAC 200 DGU.