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
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.
You will have the option to either collect the item at your local branch or have it delivered.
Delivery costs will depend on size of the product and location. For more details please click here.
Collect In Store Only Items
Delivery is not available for orders containing 'collect in store' only items and therefore the entire order must be collected from one of our branches.
You can return unused store purchased products to any TG Builders Merchant for an exchange or refund within 7 days after receipt of the goods. Please ensure that you take your receipt with you as proof of purchase for the store to exchange or refund the goods appropriately.
For items delivered to your address please contact email@example.com with details of the order.
For more information about our returns policy please see the "Returns by Post" section on our Terms & Conditions page