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Drainage Membranes

Pipe Supplies

Drainage Membranes

Toronto can get very wet, hence the need for waterproofing products. At Bernardi Building Supply, we have been selling drainage membranes from top U.S. and Canadian manufacturers for several decades now, with an emphasis on the flat roof, deck, and double cuspated drainage membranes. Double cuspated drainage membranes feature drainage studs on the upper and lower surfaces to prevent water from being trapped above the deck membrane.

The drainage membranes we sell feature a polypropylene geotextile filter layer that is bonded to a High-Density Polyethylene (HDPE) core that is water impermeable. The drainage membrane comes in rolls measuring 20m x 2.0m, with each roll covering 40m².

The greatest advantages of our drainage membranes are that their geotextile layers filter out suspended/fine soil particles, they are easy to install, the air gap behind the drainage membrane allows the structure to dry out, and they prevent pressure from building up against the interior wall structure.