Insulation deficiencies are parts of the home, which do not have recommended levels of insulation, cause heat loss by conduction. Conduction is the transfer of energy, such as heat or an electric charge, through a substance. In heat conduction, energy is transferred from molecule to molecule by direct contact; the molecules themselves do not necessarily change position, but simply vibrate more or less quickly against each other.
In other words, no insulation exists in the wall cavity, the walls will get cold in the winter which draws heat, cools heated air and changes the temperature of the room. The measure of insulation level is R-value. The higher the R-Value (thermal boundary) the more the pressure boundary (drywall) is resistant to outside temperatures.
PLACES WHICH NEED INSULATION-EACH HAVE A RECOMMENDED R-VALUE:
- Attic Floors
- Collarbeams and Sloped Ceilings in Finished Attic
- Outer Ceiling Joists (flooring outside kneewalls)
- Exterior walls
- Crawl Space Ceilings or Walls
- Basement Band Joists