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.

  • 16/10/2020New Project Completed We’re pleased to have completed this lovely extension project in North Oxfordshire. A light touch and some simple alterations to the existing internal layout have provided a light filled kitchen and dining space for the family along with increased connection
  • 22/09/2020New Planning Application We’ve submitted a planning application for the extensive re-modelling of a barn, it’s associated outbuildings and wider landscape. Originally forming part of a working farm the barn was converted in to residential use in the early 1990’s. The barn has
  • 03/09/20203D modelling This 3-D model helps the us and the client see the finished building more clearly. In this case the proposed works to a bungalow will improve the thermal efficiency to suit the clients needs and create a low energy dwelling
  • 31/07/2020Completed Project We’re pleased to announce the completion of a new project! The new garden building at Pear Tree Cottage creates a light filled modern living space distinct from the more traditional feel of the original cottage. Connected by a short link
  • 19/07/2020Changing Landscapes Charlie is excited to be part of the launch of Changing Landscapes: The Future of nature and our homes. A series of webinar panel discussions organised by international sculptor, David Harber. The discussions will explore the way in which we
  • 29/06/2020Planning permission Even during lockdown the planning wheels were still turning and we were granted planning permission for the remodelling and extension of this Victorian farmhouse. The family have now outgrown the house and our proposals seek to provide more suitable living
  • 22/06/2020Studio back open! After thirteen weeks the studio is open once again. We’re working in rotation, observing physical distancing and still having virtual meetings. But it’s great to be welcoming some of the team back.
  • 20/05/2020Future Build Guest Editor! Charlie is guest editing this weeks issue of the Future Build newsletter. Future Build is an annual event that aims to bring together innovative brands from the built environment community to share their products and solutions. Click this link to read
  • 12/05/2020Mobile home An exciting project to explore the potential of a mobile home!  On a beautiful site in south east England a mobile home has been in a field for over ten years and the clients can now replace it. We are
  • 23/04/2020Visual Images Our building sites may be closed for the time-being but we’re busy working on feasibility studies and planning applications for clients. These images are visuals we’ve produced to help the client understand the approach to the new building.
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