Eco Vent Underlay

Underlay

Underlay is an essential part of any project. We supply market leading products including PERMO FORTE and PERMO ECOVENT underlays.

Permo® forte is an extremely strong four layer vapour permeable pitched roofing underlay with a built-in re-enforcement grid.

Permo® ecovent is a lightweight vapour permeable, three layer pitched roofing underlay suitable for warm and cold roofs.

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