RI Roofing Contractor Practice Questions - Rhode Island Commercial Roofing Contractor Exam

What type of fastener is most appropriate for attaching metal roofing panels to steel purlins on a commercial building?

Galvanized roofing nails Self-drilling screws with EPDM washers Stainless steel pop rivets Concrete screws (Tapcon)

Correct Answer:

Self-drilling screws with EPDM washers

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