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Installing insulation in walls is one of the most efficient and cost-effective ways to save energy in your home. Research shows that, on average, adding insulation can save up to 20% on your home ...

Where commonly used: Basement and crawl space walls, and as continuous insulation on a house’s exterior. Cost: $0.25-$2 per board foot, on average Foam board insulation.

Fitting exterior walls with insulation will reduce heat loss, which in turn should help cut utility bills. While insulating walls and ceilings is a great idea, there are a number of different ...