Browse Forums Heating, Cooling & Insulation Re: Effect of excess batts on room temperature 18Dec 22, 2009 9:52 pm Quote: Makes me wonder if the concertina batts will be any easier to install! Certainly will be - and is only in the order of 0.3 less effective than the tough option. PM me your email. I have a build excavation calculator you can use based on your plans to double check what your builder is telling you. Cheers Simeon 1 10207 Found the answer. The recommended distance is .... 1 5958 |