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Technical Topics
13 June 2019
Why a Breathable all in one membrane mak...
As the world battles with the crisis that is global warming, one way those of us in construction can help is by building more efficient low energy buildings. The cornerstone of a low energy build is making sure you get the airtightness righ...
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30 March 2018
Passive house Airtight details Timberfra...
Passive house Airtight details Timberframe and Masonry construction. This request has been getting more regular so we have decided to share them. Download the full package of airtight and windtight details for masonry construction here
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06 September 2016
Is Mechanical Ventilation needed?
Modern homes and buildings are achieving greater levels air tightness with and have requirements for substantial levels of insulation. This dramatically affects how the building performs from a humidity, moisture management and fresh air po...
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10 August 2016
Flat roof construction - an expert guide...
Interstitial condensation...Can all flat roofs be treated in the same way? It's a question we get asked quiet often - is there a rule that I can apply in general terms too all flat roofs? Unfortunately there isn't due to the mix o...
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07 July 2016
Thermal bridging - Issues and solutions
Thermal bridging plays a significant role in heat loss in our buildings today in both commercial and residential buildings. Of area that causes regular issues is at door thresholds where a structural insulant is required. Window and door re...
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03 November 2014
Elevated CO2 levels impair decision maki...
Elevated CO2 levels impair decision making ability Outdoor CO2 levels range between 350 and 400ppm (parts per million), however indoors CO2 levels can increase to unhealthy levels of over 2500ppm without proper ventilation. Generally it is ...
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08 October 2013
Windtight construction - Why and how?
It sounds like an obvious answer but until now very few people even consider it. It is an important part of the construction fabric and although it may not cause the same heat loss or structural damage as ineffective airtightness its benefi...
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19 September 2013
U/R-Values – The Difference Betwe...
U/R-values are used to describe the thermal performance of building elements including floors, walls, windows, doors and roofs. This data is then used to calculate the energy performance of the whole building which in turn can impact o...
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