Block · one region of the page, as the scanner read it. It may hold a whole story, part of one, several, or an advertisement; stitching blocks into articles is the next step. Text is supplied OCR.
Page 19 · column 4 of 6 · from the scan, no model involved
Berween 25 and 50 percent of energy used in a home goes right out the window — literally. That's because, in most homes, windows provide the biggest openings between ambient indoor air and the elements outside-and the biggest opportunity for valuable energy to escape.
Heat always moves toward cooler air. and windows are often a home's only protection against unwanted heat gain in the summer and heat loss in the winter. As many homeowners are seeking ways to save on energy bills and reduce their impact on the environment, windows have become a primary focal point.
With nearly 40 percent of home remodeling incorporating sustainable, green materials. the U.S. Department of Energy and the National Fenestration Rating Council have established a new.
59.4%