16" 26 gauge Standing Seam Underlayment

Guest User
12/1/2010
Hello, I am about to have a steel roof installed on a new house useing 16" 26 ga. standing seam panels. The house is all steel framing (light ga.) Will be using 7/16 OSB for decking. What would be the best underlayment to use? Polypropalene, rubber? Is there something that will seal when the screws pass through during installation? Thank you, Jeff
Info @windowsonwashington.net
An informed customer is our best customer.
12/1/2010
Polypropylene is probably cheapest but you could cover the roof in a suitable ice and water shield type material that is self-sealing. Check with the manufacturer on the panel and they will have approved options for you to choose from. The self-sealing option is nice but probably unnecessary.
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