Our Torpoint project for Knightstone Housing has now been certified to meet the AECB Silver standard. This low energy building standard uses PassivHaus methodology and overall energy targets with a some flexibility on airtightness to make the standard more accessible. We would recommend AECB Silver to clients as a really useful first step in the learning process towards delivering PassivHaus levels of energy efficiency.
Achieving the standard on this project was particularly challenging due to the complex building section – necessary on the steeply sloping site – so congratulations should also go to Kier Living for their persistence and hard work in achieving an airtightness of 1.1 ac/hr.
More information on the project is available at the Low Energy Building Database.