Klober Permo Light

Product Description

Klober Permo Light is a lighter weight underlay that is suitable for non-ventilated cold and warm roofs and for all types of roof covering. It can be laid on top of boarding and insulation or over counter battens.
High vapour permeability

Permo underlays have a very low resistance to water vapour, effectively preventing the build-up of condensation within the roof structure.

Waterproof

Permo underlays are impervious to any wind driven rain or snow that gets blown through the roof covering, even when in direct contact with timber rafters and insulation.

Windproof

When installed according to manufacturer’s instructions, Permo underlays provide a continuous windproof layer, ensuring insulation materials maintain their optimum thermal efficiency by minimising air infiltration.

Strong and durable

Although much lighter than bitumen felts, Permo underlays are extremely tough. They have excellent tear and nail strength, yet remain flexible even at low temperatures. They are extremely resistant to ageing.

Strong and durable

Environment

Permo is produced without the use of adhesives, fillers or toxic additives. No CFCs or HCFCs are used in its manufacture and it is 100% recyclable.

Compatibility

Permo underlays can be used with all commonly used roofing materials, insulants and plastics. They are not affected by timber preservatives or their solvent carriers once these have dried. However, they should not come into contact with timber preservatives in a liquid state, or freshly treated timber which has not fully dried out.

Long term performance

Tests carried out by the BBA included measurements of the effect of heat ageing, UV light exposure and accelerated dust/debris accumulation and found no discernable reduction in performance.

Certification

BBA, IAB and CE certified.