Consultants at Webb Sciences Ltd., have had many years experience of testing buildings for airtightness (going back to the 1980's) and also of airtightness design advice, construction phase inspections and air leakage audits.

Also, they have wide experience of undertaking infrared thermography surveys and energy/water surveys.

Staff at Webb Sciences Ltd have been involved in the production of several airtightness publications including:

CIBSE Technical Memorandum TM23 "Testing Buildings for Air Leakage".

This is the industry standard that fan testing is carried out to in the UK.

BRE report BR448 "Airtightness in Commercial and Public Buildings".

This report by Brian Webb and Richard Barton covers all topics relating to airtightness in non-domestic buildings. These range from fundamentals such as why is airtightness important to guidance in achieving an airtight building.

Staff have also given many presentations on airtightness and infrared thermography around the country.

Brian Webb has published several papers on the subject of airtightness and was also been involved in the 2002 revision of AD's L1 and L2.