Airtightness Testing

Airtightness testing is carried out to identify and measure unwanted air leakage through the building envelope. Not to be confused with ventilation, which is the controlled extraction and provision of air into and out of buildings, air leakage (or draughts) can prove costly, in terms of higher energy bills, decaying building fabric and poor indoor air quality.

It has recently been highlighted the UK has some of the draughtiest dwellings in Europe and if we are to reduce energy consumption, cut carbon emissions and achieve affordable warmth it is important we tackle our leaky buildings.

An airtightness (blower door) test can help identify where a building is losing heat. By pressurising and/or depressurising in a controlled manner we can pin point air infiltration and exfiltration and determine the rate at which air is escaping (air changes per hour) and outside air is entering.

Understanding the air permeability and background ventilation rate of a dwelling is even more important as we embark on a retrofit journey. Small alterations to existing dwellings, such as draught proofing or topping up loft insulation, can impact the delicate indoor air quality balance. Too many or too few air changes can be avoided if we are aware of what the dwelling and occupants require.

For more information or to obtain a quote please get in touch.