Add more insulation to reduce thermal transfer

01/10/2013 | East Valley Tribune (Mesa, Ariz.)

You can maximize the R-value of existing insulation by adding more of it. Which kind to use depends on what's already there, writes Dwight Barnett. Loose-fill materials should be added to loose-fill materials, but either batts or loose fill can be added to existing batts. However, make sure the insulation doesn't touch the roof decking so as to prevent problems, he adds.

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East Valley Tribune (Mesa, Ariz.)

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