Your attic, it’s the coldest part of your house in the winter and the hottest area in the summer. You can make your entire home more comfortable and energy efficient by simply increasing the insulation in your attic to the recommended R 50 (or even R 60).
If your home was built before 1980, it may well be under-insulated by today’s efficiency standards. Even newer homes can have as little as R 32 (or less) insulation installed, depending on the builders’ specifications.
Bringing attic insulation levels up to the recommended standards can result in major savings in the form of lower utility costs. Figures show that upgrading to current U.S. Department of Energy recommendations will reduce heating and cooling costs from 20 percent to 50 percent, particularly if installation is preceded by sealing air leaks.