14/11/2017 Air Tightness

We endeavour to design and detail buildings with a high level of airtightness. Having an airtight house means that its thermal performance is much more efficient with the warm air being unable to escape through the building fabric. It’s still very important to consider the airtightness of a building even if it has been very well insulated; the warm air will inevitably find it’s way out and you’ll have to pump the building with more heat to keep the ambient temperature stable.

We’re reaching the end of a barn conversion build at the moment and it was recently pressure tested to assess the level of air changes, or in laymans terms, how much air is leaking out of the building. The level achieved was an incredible 0.9 air changes/hour@n50, which surpasses not only the Building Regs target of 10 air changes/hour but also the Passivhaus retrofit target of 1.0 air changes/hour@n50.

This is an amazing result for a leaky old stone barn and has been achieved through careful and considered technical airtightness detailing, with diligent workmanship and attention to detail on site.

  • 19/06/2018Stone Work The external forms are taking shape at our farm cottage project in Oxfordshire. The Cotswold limestone work has harmonised the old cottage forms with the contemporary extension design using traditional rubble stone.
  • 11/06/2018Sunday Times Charlie was interviewed for an article in today’s Sunday Times Homes supplement about renovating barns. Our project, Manor Farm Barn was featured as an example of re-using original materials within the building.
  • 04/06/2018Build It Live Charlie will be appearing at Build It Live in Bicester this coming Saturday 9th June. Build It Live is a home building and self-build exhibition with expert guidance and lots of exhibitors all under one roof.
  • 11/05/2018Back to Life The plastering has been done and the screed laid on the floor. The original timber beams of this classic 1960s house have been lovingly stripped and repainted by the clients own hands. When they bought the house these beams were
  • 30/04/2018Building the Dream is back! A new series of Building the Dream will be hitting the screens this Wednesday 2nd May, 9pm, More4.
  • 27/04/2018Taking shape The windows are in and the cladding is on the exterior of this project in Oxfordshire. The wall linings are going in internally and the concrete hearth has been formed and floated.
  • 17/04/2018Busy with planning We’ve just submitted a planning application for this scheme in Oxfordshire. The concept for the design involves exploring a contemporary spin on the classic English country house and sensitively engage this with a lovely existing barn. This involves using traditional materials
  • 03/04/2018Closing stages at Greyfell The landscaping in the courtyard at Greyfell is taking shape. A series of low stone walls surround a handsome brick paved terrace which steps down to gravel pathways and a kitchen garden. The final touches are being made to the
  • 28/03/2018Ideal Home Show The Ideal Home Show is currently in residence at Olympia in London until next Monday 2nd April. Charlie will be there this coming Saturday talking about sustainable housing and high quality residential design.
  • 19/03/2018Homebuilding & Renovating Show 2018 The HB&R show is returning to the Birmingham NEC and Charlie will be there this coming Saturday 24th March. Charlie will be speaking on a range of topics from giving a step by step guide to designing your dream home,
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