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Frequently Asked Questions

Doors and Windows

How do I choose between wood, vinyl, or metal windows? Windows are made from wood, vinyl, metal, or a combination of all. There are all-wood windows, vinyl-clad wood windows, aluminum-clad wood, all-aluminum, all-vinyl, fiberglass, and steel. Each has positive qualities and drawbacks: Wood: Widely considered the best because of its strength, insulating qualities, and because it can be painted or stained. However, it will expand or contract in wet and dry weather, sometimes causing a window to stick. The wood must be regularly painted to preserve it. Vinyl-clad wood: Generally more expensive than all wood, it combines wood with a vinyl exterior that is highly resistant to weather damage. Inside, the wood is exposed for painting or staining. The exterior vinyl usually comes only in white or brown. In extremely cold areas, the vinyl will be brittle. Aluminum-clad wood: Like vinyl-clad, it offers an aluminum exterior for weather protection and exposed wood inside. Aluminum will eventually corrode, and will do so quickly in a salt air environment. All-aluminum: Inexpensive windows, generally. The exterior is often anodized to resist corrosion, but will corrode eventually. Automobile wax helps prevent this. These windows have no thermal insulating qualities. Vinyl: Generally used as replacement windows because they are made by local firms to fit your existing window opening. Quality can vary dramatically. Vinyl is brittle in extremely cold climates. Fiberglass: Strong and efficient, it readily withstands heat and cold, and can be painted. Steel: More commonly found in older windows. No insulating values, and subject to rust. Must be painted regularly. The big advantage of vinyl windows is that they are made specifically for your home, your window openings. This is generally not true of wood windows. Instead, they are made in a variety of stock sizes. For new construction, this is no problem; you choose the window style and size you want and the builder frames the rough window opening appropriately. But for replacement wood windows, you find the closest fit and then shim and trim to make them work. Back to top How can I tell which brand of windows is the best? There is no central organization that ranks window manufacturers or window construction quality. But here are some key items to consider when buying: Appearance: style, size, shape, frame materials. Function: operating type, thermal qualities, sound resistance. Energy performance: basic energy properties, heating and cooling qualities. Price: cost of purchase and installation, annual maintenance. Durability: warranties. There are also various agencies that keep tabs on how the glass in the window performs. One is the Insulating Glass Certification Council, which tests the durability of glass that manufacturers use. The IGCC rates durability by designating one of four categories: "CBA," "CB," "C," or unrated. The "CBA" rating is the highest. If a window dealer has unrated windows, you are not getting the best grade of insulated glass. Another organization is the National Fenestration Council, which seeks to provide accurate information on measuring and comparing window energy performances. If a window has been through NFC screening, it will bear a label that rates the following: U-factor , or how well the window keeps heat inside the home. Solar heat gain , or the window's ability to resist warming from sunlight. Visible light transmittance , or how much light passes through the glass. Back to top What about warranties on windows? Are they all the same? No, they are not. Some window manufacturers offer a 10- or 20-year "seal failure" warranty, which may cover only the material costs. You would pay for labor. Look for warranties on both material and labor, including coming to your house to make the repair, rather than you taking the window to them. Whatever window you choose to install, be sure the manufacturing company has been in business awhile. There have been many companies over the years offering "lifetime" warranties that went out of business. Consequently, the warranty was useless. Back to top   Message Board Mainpage | FAQ Mainpage

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