Information for Builders.  Air Tightness Consultancy is important. Achieve commercial building airtightness contractually or for government regulations. What Services does a builder need? There is a lot more to airtightness than just testing. If a builder has a low air tightness permeability rate that they are targeting of at least 10 m3/h/m2@50Pa, the builder … Continue reading Air Tightness Consultancy