‘The Sheds‘, a Passivhaus residential project in the Cotswolds, took another important step forward recently when it passed its airtightness test, achieving 0.37 air exchanges per hour. This easily satisfies the Passivhaus requirement of 0.6 air exchanges per hour or lower. The Sheds, for which Subadra are both Project Manager and Passivhaus Designer remains on track to be the UK’s first residential Passivhaus Premium building.
The test was carried out by As Built Testing, and was filmed (as is the whole build) by Channel Four for their Grand Designs series. Keep your eyes open for it appearing on your TV screens later this year.