| Green Building Bible, Fourth Edition |
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These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment. PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book. |
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Posted By: steveleighThe Canadians have already attempted to seal buildings during the seventies and eighties and failed because of the inability of render systems to remain airtight.

Posted By: Peter A... that the occupier can have a massive impact on the results, if there are any switches they can play with, they will, this has a big impact on the performance. Try to make sure they can't control anything and lock the windows shut!! As sure as eggs are eggs they will leave the windows open which will make monitoring air tightness difficult when you are not there to keep an eye on things.
Posted By: Mike George
Steve, Re the elimination of thermal bridging, do you have any details showing how this is going to be achieved? for example at ground floor perimeters and eaves.
I'm also very interested in your [our] argument that air leakage has a far more significant effect on insulation than is commonly percieved. Placing figures on this however is rather difficut in my view. You've said that you don't think there is much to be gained by comparative testing, how then are you going to draw the conclusions you suggest?
Posted By: Mike GeorgePaul, I'd be interested to know if any papers came out of the Canadian Studies?
Posted By: steveleighThe Canadians have already attempted to seal buildings during the seventies and eighties and failed because of the inability of render systems to remain airtight.
Posted By: steveleighThe Canadians have already attempted to seal buildings during the seventies and eighties and failed because of the inability of render systems to remain airtight.

Posted By: steveleighA simple question to consider when making a building airtight.
Is the airtightness of the chosen system maintainable for the duration of the building's life?
Posted By: Paul in Montreal
Agreed. And the research I cited seems to indicate that standard Canadian construction techniques using timber frame with a polyethylene air barrier such as Tyvek seem to maintain their air tightness properties.
Posted By: Mike GeorgeSteve, Are you able to divulge the exact nature of the materials used for your system?

Posted By: James NortonWhat about airtightness at the known most vulnerable spots for air tightness, ie junctions with openings, service entries/exits etc...?
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