Airtightness & Air Permeability Testing Demo in Northern Ireland

Airtightness Air Permeability Testing Demo in Northern Ireland with Gareth Chambers of ThermCAL Ltd. Blower door testing is now common place in residential buildings to find air leakage through out the building envelope, witha Retrotec 2000 series Fan. www.thermcal.co.uk gareth@thermcal.co.uk for more info.