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March 27, 2018
Insulation is one of the most cost effective ways to improve your home’s overall comfort and efficiency. It creates a thermal barrier which prevents stifling heat from entering in the summer and indoor heat from escaping in the winter. For a home that is comfortable and efficient year-round, make sure your home is properly insulated.
Quick Facts about Insulation
In California homes, heating and cooling accounts for 31% of energy usage
Proper insulation can lower your heating and cooling bills by 10% to 20%
Insulation can pay for itself in just 2 to 3 years
Recommended Insulation Levels
Insulation effectiveness is measured in R-value. The higher the R-value of insulation, the more effective it is. Certains areas of the home need more insulation than others.
*These recommendations are based on climate zone 3
2x4 Walls: R13–R15
2x6 Walls: R19–R21
Basement Walls: R11–R15
What Proper Insulation Looks Like
Insulation in the attic shouldn’t just come to the top of the joist; it should completely cover the joists.
R15–R21: Add more insulation
R38–R49: Probably enough insulation