Insulate your home when:

• You have an older home and haven't added insulation. Homes built before 1950 use about 60% more energy per square foot than those built in 2000 or later.
• You are uncomfortably cold in the winter or hot in the summer- adding insulation creates a more uniform temperature and increases comfort.
• You build a new home or addition or install new siding or roofing.
• You pay high energy bills.
• You are bothered by noise from outside-insulation muffles sound.