metal roofing screws: "I have a client that had a metal roofing contractor ..." - David Johnson (2/4/2009) | Walking on Metal | Archive

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I have a client that had a metal roofing contractor install metal roofing on her house 6yrs ago, she called us concerned about a leak. I beleive her leak is coming around a skylight-but 3/4 of the metal roofing screws have cracking rubber gromets. Could this be from overtigtening the screws or is this just from uv rays? I have installed metal roofing and we always started the screw with a hex head driver and a drill, we wouldn't tighten all the way with the drill-another person would come behind the drill guy with a wratchet and hand tighten them as not to pancake rubber washer and cause it to split. What is your opinion?		David Johnson 2/4/2009	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/12704/find/
I would guess that these were lower quality screws and they have backed out due to expansion and contraction		Todd Miller Isaiah Industries, Inc. 2/7/2009	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/12705/find/