What is the overall consensus on fire/smoke damage? I am often consulted to evaluate fire damaged roof members when the insurance company does not agree that the roof should be replaced. Charring is obvious, but smoke damage is difficult. Do any of you know of a resource that outlines the levels of fire/smoke damage to the decrease in strength of the member? In my opinion, the exposure to extreme heat leaves the members brittle. NDS notes that prolonged heat exposure above 150F can cause permanent loss of strength, but the percentage of loss and the definition of "prolonged" are left to interpretation.
Obviously, the CYA approach is to say that all members should be replaced. This is actually the request of the contractor and homeowner. However, the insurance company shouldn't have to pay for un-damaged, or lightly damaged members (I guess?).
Any opinions/suggestions? Thanks!
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