You can order up to 3 free sample tiles.

We'll aim to deliver your sample order within 5-7 working days from your order date.

CANOPIA DRAINAGE BOARD - 20MM

Canopia Drainage Board 20 is made from deep-drawn recycled HDPE and is used as a water reservoir and drainage board beneath extensive green roofs.

Do you have questions about the product, systems or anything else?
We're here to help - contact us and one of our experts will help you.

Base Unit Of Measure	PCE
Coverage	2 m²

Maximum Water Holding Capacity	Approx. 5.3 L/m2
Water Discharge Capacity	i = 0.01 (=1 % roof pitch): 0.68 L/(ms), i = 0.02 (=2 % roof pitch): 0.97 L/(ms), i = 0.05 (=5 % roof pitch): 1.59 L/(ms), i = 0.10 (=10 % roof pitch): 2.29 L/(ms), i = 1 (vertical): 7.62 L/(m*s)

Codes of Practice	The GRO Green Roof Code
Designated application	As a drainage and storage board under extensive green roofs with filter fleece and extensive substrate on flat roofs up to 5°.
Uniclass reference	Pr_25_71_63_24

Discover more