How to Insulate Your Attic and Save Money Year-round

Adding attic insulation is one of the easiest ways to reduce your energy bills. Here’s how to know whether you need more.

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To find out how much insulation different sections of your home needs, first find your region on the map in the previous image in this Image Gallery and note the Zone number. Then look up your Zone and the different sections of your home in the chart above.
U.S. DEPARTMENT OF ENERGY