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I have built a 300 square foot addition to a two-story house, but I found that the total duct leakage is 20%. Do I need to tear out drywall to get to the ducts between the floors?

April 26, 2017addition built duct foot House leakage square total

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I have built a 300 square foot addition to a two-story house, but I found that the total duct leakage is 20%. Do I need to tear out drywall to get to the ducts between the floors?

1 Answer

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10 Posted

No, although it is a good idea to attempt to locate and repair as many leaks as possible in areas that are accessible. Failure to do so could result in insufficient air reaching the rooms in the addition, as well as the rooms in the original structure.