Life Expectancy of Homebuilding Materials

       A study on the "life expectancy" of various home components was also unveiled at the International Builders Show. According to the study (sponsored by NAHB and Bank of America Home Equity), properly installed insulation can last a lifetime as long as it is kept dry and not damaged. A coat of paint can be good for upwards of 20 years, depending on the quality of paint and its exposure to the elements. Aluminum windows can last 15 to 20 years, while wood
windows can last up to 30 years.

       The longevity of roofs also depends partly on materials used. Slate, copper, clay or concrete roofs can last more than 50 years, asphalt roofs more than 20 years, fiber cement shingle roofs about 25 years, and wood shakes about 30 years.

       Of course, the life expectancies for materials in this study are just averages. "Usage, weather and a number of other factors can influence life expectancy," said NAHB Staff Vice President for Research Gopal Ahluwalia.

       [SOURCES: RECON; NAHB]

• RECON
• NAHB

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