Before wall systems like this, shear walls had to be solid. Now here s an area where things have really gone through a metamorphosis. Many states have adopted very strict guidelines for energy efficiency in new homes. Here at Del Webb, we routinely add radiant-barrier roof sheeting, a product that looks a lot like aluminum foil, to our homes, that reflects radiant heat from the roof to keep attics cooler. This type of product has only been around for a few years.
Windows are probably one of the most changed products in terms of energy efficiency in new homes.
Now many builders install dual-glazed windows that reflect heat called Low E Squared glass that almost acts like sunglasses for your home. Combined with the newer vinyl window frames, homes are much more weather-tight and energy efficient than ever before. Here in California, we have what are called Title 24 energy guidelines, some of the toughest in the country, so we have had to look at all kinds of new home products to help us meet and exceed these standards. The result is a savings on energy costs and the protection of environment all at the same time. Many new homes are now zone-controlled.