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 roofing underlayment market has experienced strong growth in recent years. It is projected to expand from $28.01 billion in 2024 to $29.64 billion in 2025, with a compound annual growth rate ...