Tocqueville's impression of American attitudes toward the relation of government and religion was formed on his tour of the United States in the early 1830s during the high tide of evangelicalism:
UV rays and solar heat from windows can damage furniture and fabrics and increase your air conditioning bills. To prevent this from happening you could: 1  Window Film: Install special window film on the inside of your glass that blocks UV and solar heat.
The NFRC places a label on all Energy Star windows with various measures of energy efficiency, including: 1  U-factor: How well a product prevents heat from escaping. 2  Solar Heat Gain Coefficient (SHGC): How much heat from the sun is blocked. 3  Visible Transmittance (VT): How much light comes in through the window.