Wraptite-SA

Wraptite-SA membrane specified to achieve airtightness and Passivhaus certification

  • 6 May 2016

  • Share

Britain’s first permanent Passivhaus show home has been built, achieving outstanding airtightness with Wraptite-SA air barrier membrane.

Built by Potton, the new show home is the latest addition to the Self Build Show Centre, which is based in St. Neots. As a Passivhaus project, it required exceptional thermal performance and a low level of air leakage.

Airtightness with Wraptite-SA

Wraptite-SA was specified for use on the show home’s walls and roof. Vapour permeable and airtight, the BBA-certified solution allowed for the external positioning of the air barrier. The result is a robust installation, with few penetrations for building services and structural elements.

The membrane works to prevent lateral air movement, which has improved the building’s thermal performance.

The Passivhaus standard must be demonstrated by means of an airtightness test, using a blower door. The air change rate must be less than, or equal to, 0.60ac/h to meet Passivhaus levels. At a recent Self Build Live event, Potton managed to improve on its target, achieving 0.5ac/h.

Leave a Reply

More articles

Alumasc Roofing Systems

Alumasc Roofing Systems' Hydrotech and Derbigum star in London

The Brunswick Shopping Centre in London has received Alumasc Roofing Systems’ Hydrotech Structural Waterproofing and a Derbigum Warm Roof.

Posted in Articles, Building Industry News, Building Products & Structures, Case Studies, Damp & Waterproofing, Posts, Restoration & Refurbishment, Retrofit & Renovation, Roofs

  • Share
Eco-Readymix

Eco-Readymix invests in new trucks following huge demand

Eco-Readymix has increased its vehicle fleet to keep up with high mortar demand by recently taking delivery of two of the country’s first Porsche designed Euro 6 Scantia XT’s.

Posted in Articles, Bricks & Blocks, Building Industry News, Building Products & Structures, Civil Engineering, Concrete, Cement, Admixtures, Floors, Hard Landscaping & Walkways, Landscaping, Posts, Sustainability & Energy Efficiency

  • Share
Imperial Bricks

New contemporary and regional bricks from Imperial at London Build

Imperial Bricks will be launching new contemporary wirecut, linear handmade and sanded stock bricks at this year’s London Build show.

Posted in Articles, Bricks & Blocks, Building Industry Events, Building Industry News, Building Products & Structures, Continuing Professional Development (CPD's), Exhibitions and Conferences, Innovations & New Products, Posts, Walls

  • Share
Gilberts

A synergy between contemporary and heritage achieved by Gilberts

Through refining state of the art technology, Gilberts has played a vital role in helping bring a Grade II listed building into the 21st century.

Posted in Air Conditioning, Articles, Building Industry News, Building Services, Case Studies, Drainage, Guttering, Soffits & Fascias, Heating, Ventilation and Air Conditioning - HVAC, Posts, Restoration & Refurbishment, Retrofit & Renovation

  • Share