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Klober Permo Sec Metal Roofing Felt - 1.5m x 25m Roll (37.5m2)

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£239.81 Incl. VAT
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  • 8.5mm thick

Klober Permo Sec 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.

Product features & benefits

  • Covers irregularities within roof deck that could de-form metal roof covering
  • Fully waterproof secondary barrier to moisture penetration
  • Fully vapour permeable
  • Acoustic value of 8db helps reduce the transmission of external structure borne sounds eg rain hammer
  • Will not bond with the underside of the outer covering in hot conditions
  • Allows movement between the outer covering and the structural deck
  • Prevents condensation that occurs on the underside of the metal roof covering from re-entering the roof structure. Any build-up of moisture between the outer metal roof covering and the Permo sec metal will be channelled safely to the eaves due to the nature of the 8mm mesh outer layer
  • Offers protection against external moisture that may penetrate the outer roof covering
  • Provides an air space below zinc coverings to allow protective oxidation to form
  • Can be used as a temporary water proofing barrier. However, it is recommended that the outer covering is applied as quickly as possible

Area of application
Suitable for:

  • roof pitches over 3 degrees
  • Can be laid over rigid insulation or timber boarding

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

Outer surface - anthracite
Inner surface - anthracite

Roll weight
14.5 kg


Permeability Vapour Permeable

Questions & Answers


is this felt self adhesive or does it require nailing to the decking


This is not self adhesive, it is fixed using non-ferrous staples or flat head clout nails on the overlap.

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Klober Permo Sec Metal Roofing Felt - 1.5m x 25m Roll (37.5m2)

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