FESTIVE SALE 10% discount off our All Roofing kits until The end of December , And 5% Off EPDM Kits ,QUALITY 3M Cure IT TRIMS ONLY £9.60
1 - 2 days delivery for Fibreglass, 2 - 3 for EPDM/Pro 25/Res-tec
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0800 612 7903
Shed Rubber Roof Kit - SkyGuard 2 to 5 days Delivery
Classic Bond EPDM Flat Roof Kits(Free Delivery) 2 to 5 days delivery
Epdm Dormer Roof Kits(Free Delivery) 2 to 5 days delivery
Sure Edge Kerb Trim 2.5M
Sure Edge Gutter Drip Trim 2.5m
EPDM Contact Adhesive 2 to 5 days delivery
Classic Bond Water based Deck Adhesive 2 to 5 days delivery
ClassicBond Tool Installation Kit
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Wallbarn's Protecto-Drain 20P Drainage Membrane is designed as a reservoir and drainage layer for green roof construction. It is placed above the protected and waterproofed concrete deck, and below the filter layer, soil substrate layer and vegetation layers on extensive green roof systems.
The HDPE membrane features 20mm cups spaced evenly, but the area between the cups is perforated. When placed on a horizontal surface, this design allows water to accumulate in the cups, which helps to sustain the roots. Excess water can drain through the holes and beneath the membrane into the drainage outlet. As well as this, the water in the cups can be pulled back up through the filter layer to nourish the vegetation above. This clever design maintains a consistent level of water in the reservoir cups, while efficiently and quickly removing rainwater from the roof, preventing it from getting overloaded.
This flexible membrane is made from high-density polyethylene (HDPE) and is designed to guide water away from the surface of any structure towards the appropriate drainage system. It is lightweight and durable, making it ideal for a variety of applications. The material is completely safe and does not contain any contaminants, meaning it can be used with water courses without any harm. It is perfect for vertical surfaces and protects the waterproof membrane against abrasion and puncture damage caused by backfilling.
The cupped structure of this material creates a permanent air gap between the wall and the backfill, which helps to reduce pressure points and ventilate the building while preventing problems of dampness. Gravity causes the water to flow down the surface and into the sump or drain installed beneath it. It is also an effective damp-proof layer on horizontal surfaces. This material is resistant to fungus and rot and safe for use with drinking water.
Please allow 1 to 3 working days for your order to arrive.
Returns are easy, if the items are unopened and unused then simply contact us for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund in a snap!
Here are 5 more great reasons to buy from us:
In the unlikely event that you find your item cheaper at another online store, just let us know and we'll beat the competitor's pricing hands-down.
We insist that you love everything you buy from us. If you're unhappy for any reason whatsoever, just let us know and we'll bend over backwards to make things right again.
Ordering from APEX Fibreglass Roofing Supplies is 100% safe and secureso you can rest easy. Your personal details are never shared, sold or rented to anyone either.