Take a metal deck roof, which many specifiers like for its strength, light weight, economy, and ease of installation, and combine it with a waterproof membrane, such as PVC, SBS, TPO, or EPDM to ...

The first layer on top of the plywood or OSB roof deck is underlayment. For this, we chose a self-healing ice-and-water membrane to protect the shallow-pitched roof deck. The tricky part in laying the ...