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Underlays There are 2 products.

  • Available
    Eco Vent Underlay 75m2

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

    Permo® Ecovent is lightweight vapour permeable, three layer roofing underlay suitable...

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

    £ 60.00

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  • Available
    Permo Forte Underlay 75m2

    Permo® forte  — extremely strong four layer vapour permeable underlay with a built-in re-enforcement grid. Suitable for all pitched roofs.

    Permo® forte  — extremely strong four layer vapour permeable underlay with a built-in...

    Permo® forte  — extremely strong four layer vapour permeable underlay with a built-in re-enforcement grid. Suitable for all pitched roofs.

    £ 102.00

    Add to cart View