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Best mounting system for panels on new metal roof

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  • #16
    Originally posted by solarix View Post
    Well, if the roofing companies trust a little 1/2 dia seal on their screws, and the engine makers trust compression seals on cylinder heads, I have no trouble trusting a 3" sq L-foot on a roof.
    Compression seals on engines are a different application, but I'd also suggest they fail on occasion. I've designed various types of compression seals for many types of pressure vessel applications. interesting tech.

    Keeping a joint dry in a weather application by flashing for example, is a superior method of leak prevention over relying on sealing methods that can dry/change dimension/deteriorate over time, but sealing screws is certainly a cheaper method. To the extent you may me correct, I believe cost may have something to do with their trust.
    Last edited by J.P.M.; 08-12-2017, 10:44 PM.

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