Homes should be well insulated in the attics, walls and underfloors to avoid heat loss in winter and to keep heat out in summer. The effectiveness of insulation material is measured in R value. The higher the R value, the more effective it is. Building codes in most mild climate jurisdictions require attic insulation to be R-30 or better and exterial wall to be R-13 or higher. After air-sealing the house, adding or installing insulation in a very cost effective way to improve comfort and save energy in the home. One of the best sources for insulation information is from the Oak Ridge National Laboratory.
This forum provides you with resources about home renovation, improvement, makeover and repair topics such as air condition, bathroom design, bathroom remodel, construction, countertop selection, drainage, drought tolerant landscape, finding contractors, flooring, gardening, home appliances, home insulation, hot water heater, interior design, kitchen design, kitchen remodel, landscape replacement, moisture management, plumbing, rain water collection, remodel planning, retrofit, saving water, solar system, water conservation, and many others. While we focus on issues in California, particularly in the San Francisco Bay Area, San Jose, Oakland, Berkeley, Campbell, Cupertino, Marin, Menlo Park, Mill Valley, Mountain View, Palo Alto, Redwood City, Sacramento, Sausalito, Sunnyvale, most information is applicable in all parts of USA as well as the rest of the world.
