thermal loss thru. walls/roof

Loft, wall and other types of insulation and energy related topics

thermal loss thru. walls/roof

Postby garth » Fri Nov 07, 2008 11:37 am

Does any one have, or know where i can get actual heat loss figures for different wall and roof structures?? ie standard cavity walls/cavity wall with filling/use of thermal blocks etc?
Publications only talk in general terms eg 50% improvement.
garth
 
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Re: thermal loss thru. walls/roof

Postby Roger » Fri Nov 07, 2008 3:08 pm

Gath,

Have a look at http://diydata.com/information/u_values/u_values.php - you could also google 'u values'.
Roger
 
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Joined: Thu Mar 22, 2007 7:52 pm

Re: thermal loss thru. walls/roof

Postby garth » Fri Nov 07, 2008 4:52 pm

Thank you - still getting use to 'Googling' things
garth
 
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Re: thermal loss thru. walls/roof

Postby Perry525 » Thu Nov 20, 2008 6:23 pm

What do you want to do?
In real life the results of using different insulation can be quite marked.
In most situations the important issue is wind suction!
The wind will find any holes in your home and suck the warmth out.
Therefore, the care that you use in fitting insulation is the most important issue.
So the thing is, where you intend to put it?
And what are you going to use?
Can you obtain an airtight fit?
Will you make a heat/cold bridge through the insulation that will leak your expensive heat to the outside world?
Perry525
 
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