We are the blower door test experts
for buildings from XXS-XXL
Over 25 years specialists in airtightness measurements on buildings and rooms of all kinds.
Fan performance of our calibrated fans = 551,000 m³ volume flow at 50 Pascal.
Blower door test up to 5.500.000 m³
Why Blower Door XXL?
Our services for your project
Measurement after and for:
ISO 9972 (GEG), DIN 13829 (EnEV), LEED (Leadership in Energy and Environmental Design), DGNB (German Sustainable Building Council), BREEAM (Building Research Establishment Environmental Assessment Method), BNB (Sustainable Building Assessment System)