air leak test question


Hello, I have a 2600 sq ft four level split home. I had a representative from energuide do a household energy efficient rating on our home. ... He shut up the entire house and then installed a series of fans in the doorway and did a "negative pressure test" to find any air leaks...Among a few of the recomendations he gave me was to seal my wall receptacles using this foam thing I put behind the cover plates to reduce outside air from travelling into the house on the outside walls... My question is should I have to do the basement? The wall is like under the ground so I can't see sealing these wall plugs and switches will do anything... Thoughts? Thank you.... Jim
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Jim wrote:

I did it long tie ago at my cabin. Since they don't cost much I did all over the place, unpstairs, downstairs, basement. Nowadays they wrap the box with plastic envelope to cut off air infiltration.
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It's a good idea to seal all of them. Making dead air spaces is what you want.
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You had an energy guide guy actually in your home, saw the construction of your home, and did actual tests. Now you have a question, and you are asking a bunch of anonymous screen names with computers? That doesn't make sense. I'd call the energy guy's office and ask them.
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