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I am going to be installing a lighting rod system. From searching various web sites, I have read that the copper grounding cable is attached to the roof in one of several ways: Copper ring shank nails, stainless steel nails, or instead of a nailed clip, there is a copper disc that is glued to rubber roofing.
The house has 20 yr asphalt shingles, and I am reluctant to nail through it while attaching the clips for fear of creating leaks (although I have ice and water shield on the entire roof, which might seal a nail hole).
Any ideas? I thought about pre drilling, stuffing the hole with 100% silicone caulk, with a little dab on top, then placing the clip on the dab and securing the clip to the roof with a brass screw. I doubt that would leak – but who knows?
Then I thought about trying to bed the clips in silicone caulk, without any nails at all. But I thought that wouldn’t hold up to hurricane winds pushing on the cable.
Anyone got a better or different idea?
Replies
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I am going to be installing a lighting rod system. From searching various web sites, I have read that the copper grounding cable is attached to the roof in one of several ways: Copper ring shank nails, stainless steel nails, or instead of a nailed clip, there is a copper disc that is glued to rubber roofing.
The house has 20 yr asphalt shingles, and I am reluctant to nail through it while attaching the clips for fear of creating leaks (although I have ice and water shield on the entire roof, which might seal a nail hole).
Any ideas? I thought about pre drilling, stuffing the hole with 100% silicone caulk, with a little dab on top, then placing the clip on the dab and securing the clip to the roof with a brass screw. I doubt that would leak - but who knows?
Then I thought about trying to bed the clips in silicone caulk, without any nails at all. But I thought that wouldn't hold up to hurricane winds pushing on the cable.
Anyone got a better or different idea?