TG Code
Vent 3® Classic is a breathable roof underlay that gives major benefits over traditional underlays....
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£46.80 £39.00
Availability: In Stock
Selling Units: ROLL
Vent 3® Classic is a breathable roof underlay that gives major benefits over traditional underlays. The Cromar breather felt is made from two, high-tensile, spun-bonded polypropylene layers. This triple layer, high performance, breathable membrane is thermally calendared to a micro-porous polypropylene film. Layer one - waterproof surface Layer two - breathable waterproof membrane Layer three - protection from abrasion and damage, giving additional strength This product has exactly the same specifications as the Vent 3 Light breathable membrane, but the Classic has a heavier GSM at 115, compared to this Light's 95 GSM.
Clean and easy to use Lightweight and flexible Waterproof membrane High vapour permeability Long-term durability and tensile/tear strength High wind uplift resistance BS 5534:2014 compliant
Can be used in supported or unsupported roof systems, regardless of whether they are tile, slate or metal, and in warm and cold roof applications. Equally effective whether draped unsupported over rafters or laid directly onto insulation.

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