house-insulationNormal house-insulation covers the outside walls in either R-11 or R-19 depending on the thickness of the wall studs. The interior walls don’t need insulation.
For a normal roof that uses regular trusses, the insulation is put into the rafters directly over the ceiling so there is a dead air space in the attic. This helps regulate heat and moisture under the roof. Inadequate insulation will let the heat and cold pass through the ceiling so you will have high heating and cooling bills.
There are a few areas that often get overlooked when insulating. One of those areas is inside headers and between rough openings for doors and windows. Also behind outlets, switches, and any place where there are openings in the sheetrock. Installing the insulation is about as easy as anything can be, so I won’t spend any more time on it. It just makes economic sense to be thorough and to do a good job, you’ll be glad you did for many years afterward.
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