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Life Expectancies of Building Materials

The following chart details the predicted life expectancy of appliances, products, materials, systems and components. Note that these life expectancies have been determined through research and testing based on regular recommended maintenance and conditions of normal wear and tear, and not extreme weather (or other) conditions, neglect, over-use or abuse.  Therefore, they should be used as guidelines only, and not relied upon as guarantees or warranties. 

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