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16th August 2009, 09:50 PM #1
Sub-Floor Insulation under floorboard - Good Idea?
I have a few bags of R2.5 and R3 batts that I am thinking of using under my subfloor.
I have tassie oak polished floorboards and good under floor space. I was thinking of using these batts under the floor by simply tucking them in between the joists and holding them in place using either metal strips, wire, or masonite strips.
I can see that type of insulation method is relatively popular, but I have also read some reasons why not to do it. Is this a good idea? Do the floorboards need to "breath"?
The way I see it is that it may take away some of the benefits of the sub-floor cooling in Summer. However it should be quite advantageous in winter to eliminate some of the cold and drafts getting in between some small gaps in the T&G joins.
Any opinions?
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