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Permo Sec Metal Roof Vapour Permeable Underlay by Klober - 25m x 1.5m

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£229.49 Incl. VAT
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Permo sec metal is a vapour permeable waterproofing barrier that is installed as a separating layer between copper, zinc, aluminium and stainless steel standing seam roof finishes and the supporting deck.


Length: 25m.
Width: 1.5m.
Roll size: 37.5m2.
Roll weight: 14.5kg.
Weight: 390 gsm.
Thickness: 8.5mm.
Reaction to fire: Class E.
Resistance to fire: -30°C to 80°C.
UV exposure: 4 months.


The product is laid between the timber deck/insulation and the outer metal roof covering and can either be laid horizontally or vertically and is fixed using non-ferrous staples or flat head clout nails on the overlap. Permo sec metal should be laid in accordance with our full installation instructions.


Can be laid over rigid insulation or timber boarding.
Suitable for roof pitches over 3°.


Outer layer of polypropylene mesh bonded to a vapour permeable membrane. 4 layer fleece foil combination of polyolefin, hydrophobic treatment and PP monofilament mesh.


Permeability Vapour Permeable

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Permo Sec Metal Roof Vapour Permeable Underlay by Klober - 25m x 1.5m

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