EPDM (ethylene propylene diene monomer) rubber membrane roofing for flat and low-slope roofs. Proven durability across decades of Quebec winters.
EPDM rubber roofing is one of the most time-tested flat roofing systems available, with installations dating back to the 1960s still performing in some cases. This synthetic rubber membrane is manufactured in large sheets and installed either fully adhered, mechanically fastened, or ballasted, depending on the roof configuration and building requirements.
For Quebec properties, EPDM offers several important advantages. Its rubber composition maintains excellent flexibility even at very low temperatures, which means it moves with the building structure through freeze-thaw cycles without cracking or splitting. EPDM is also highly resistant to UV radiation, ozone, and general weathering, which contributes to its exceptional longevity. The material comes in black or white, with black being the traditional choice and white offering better reflectivity for energy-conscious installations.
EPDM sheets are available in widths up to 50 feet, which means large roof areas can be covered with fewer seams. Seams are joined using specialized adhesives or tape, and when properly installed, they provide reliable waterproofing for the life of the roof. Our installation teams are trained in the specific techniques required for EPDM, including surface preparation, adhesive application timing, seam rolling, and detailing around penetrations and edges.
For building owners looking for a roof system with a proven multi-decade track record in cold climates, EPDM is a strong choice. We install EPDM systems from major manufacturers and provide detailed maintenance guidelines to help property owners get the maximum service life from their investment.
Why this service
Proven track record spanning decades
Excellent flexibility in extreme cold
Large sheet sizes mean fewer seams
Resistant to UV, ozone, and weathering
Multiple installation methods available
One of the longest-lasting flat roof options
FAQ for this service
EPDM roofs regularly last 25 to 30 years, and some well-maintained installations have exceeded 40 years. The key to longevity is proper installation, particularly at seams and penetrations, combined with regular inspections and maintenance.
EPDM is one of the best membrane options for cold climates. Its rubber composition remains flexible at temperatures well below zero Celsius, which prevents cracking and splitting during Quebec winters. This cold-weather performance is a primary reason EPDM has been popular in northern climates for decades.
Black EPDM is the traditional option and absorbs heat, which can help with snow melt. White EPDM reflects solar radiation and reduces cooling costs in summer. White EPDM costs slightly more but can be worthwhile for energy-conscious building owners.
EPDM seams are joined using either specialized seam tape or liquid adhesive. Both methods create a strong bond when applied correctly. Seam tape has become the more common method due to its reliability and ease of quality control during installation.
In many cases, EPDM can be installed over an existing roof using a recover board to create a smooth substrate. This approach saves the cost and waste of a full tear-off. A moisture survey of the existing roof is needed first to ensure no trapped moisture that could cause problems under the new membrane.