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Vent 3 Breather Underlay

Vent 3 Breather Underlay 02351475
Ref: 02351475 £30.960ex VAT (£37.150 inc VAT)
Vent 3 Breather Underlay
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Vent 3 Breather Underlay is a triple layer fabric, high performance membrane, made from high tensile spun bonded polypropylene layers, around a micro porous polypropylene film. Available in 135g BBA 1m x 50m.
This vapour permeable membrane is designed for use in a fully supported or unsupported tiled, slated or metal roof system.
The high vapour permeability and waterproof nature of the membrane, combined with excellent tear strength and high wind uplift resistance make Vent3 the professional’s choice.
The membrabe is equally suitable whether draped unsupported over rafters or laid directly over insulation.
The outer layer forms the functional waterproof surface, the middle layer is the breathable waterproof membrane, and the inner layer protects the membrane from abrasion and damage, also giving additional strength. This enables the fabric to allow moisture vapour to pass through, whilst remaining fully waterproof.

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