A good insulating system can help keep your home warm during winter and cool during summer. Check the insulation in your attic, ceilings, exterior and basement walls, floors and crawl spaces to see if it meets the levels recommended for your area. (Insulation is measured in R-values -- the higher the R-value, the better your walls and roof will resist the transfer of heat.) Consider factors such as your climate, building design and budget when selecting insulation R-value. The easiest and most cost-effective way to insulate your home is to add insulation in the attic. Check out Insulation and Air Sealing for more tips. This tip is brought to you by the U.S. Department of Energy and ISU Extension.