Early construction forensic air pressure test improves new building’s fabric air permeability by 50%

Forensic Airtightness Testing and Strategy by Heat, Space and Light Ltd has helped a new build home in Dorset achieve a drop in its final airtightness rate that will result in £100s of heating savings every year, turning it from… Continue reading

How airtightness testing differs between Building Regs and Passive House – and why it matters so much

Using a smoke pen to detect leaks during airtightness testing

Building Regulations Part F wants to know how much air (in m3hr) passes through each metre square area of the fabric (m2). This is the Air Permeability (AP or m3.hr/m2) figure of the building. To get the AP figure, one… Continue reading