Passivhaus Insights

For insulation to work as intended and for floors, walls and roofs to achieve the needed thermal transmittance (U-value) gaps in the insulation need to be small. This is because air movement in the gaps results in thermal bypass which significantly undermines thermal performance. This is well recognised and is commonly expressed in insulation installation… Read more: Making insulation work – Lyde Green School ground floor benchmarking

Last month’s visit to the Jalan House site demonstrated the rapid progress that has been made with the Passivhaus timber frame by David and the crew from Mike Whitfield Construction, with skeletal timber frame construction already up to ridge level. At the time of writing this is now almost fully sheathed in! The main structural… Read more: Jalan House – Small details, big benefits

We finally have the Passivhaus Certificate for Gorslas Primary school in our hands! It’s been a long haul since we were first appointed in July 2017. Firstly, this is a brilliant building originally designed by Carmarthenshire County Council following a design concept developed by Architype, with technical design by Acanthus Holden and built by Lloyd… Read more: Gorslas Primary School, Certified Passivhaus

One of the key Passivhaus quality assurance strategies Delta Q encourages on site is setting benchmarks for construction quality where the first area of key works installed is reviewed and documented. Delta Q were on site at our John Street project this week to undertake such a benchmark for below DPC insulation installed by the… Read more: Passivhaus quality assurance – insulation benchmarking

It’s been a long haul getting there with construction running through the pandemic but the first houses which we are certifying to the AECB Building Standard are now occupied. Two terraces occupied, eight more buildings to go.