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using sheet metal screws to penetrate stone coated steel roof

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Guest User
7/1/2005
What is the best way to seal screws that have penetrated a stone coated steel roof system. Can you use sheet metal screws to penetrate the stone coated steel roof? How well would a polyurethane sealer such as Vulkem work bonding to the stone coated steel roof system?
Allan Reid
Dura-Loc Roofing Systems, Inc.
7/5/2005
I would contact the manufacturer of the product and get their recommendation. As a manufacturer of theses types of products we have tested and supply screws for our systems that self seal. I can tell you that the acrylics used by most manufacturers in the coating process are similar and we recommend a butyl based two part sealant.
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