Ensuring watertightness is an essential part of any roofing project. And flat roofs are no exception. However, because of their unique nature, flat roofs are insulated in a different way to conventional roofs. The professional must lay a membrane over the entire surface of the roof. Among the various materials available, you can turn to EPDM membrane. Despite a few drawbacks, such as its ecologically unfriendly appearance, it remains a highly effective solution with many advantages, and can be combined with a cool roof.
The advantages of EPDM membranes
Thinking of opting for an EPDM membrane to insulate your flat roof? You're right!
This waterproofing solution is the most pragmatic choice for flat roofs. In fact, the EPDM membrane offers a number of significant advantages.
First of all, it's easy to install. Unlike other waterproofing methods, the EPDM membrane is simply unrolled on the roof and wraps itself around the edges. There are no joints to make.
What's more, it's also an extremely resistant protection. Estimated to last more than 40 years, it can withstand severe temperature changes and climatic hazards. The purchase price of this material remains economical.
Finally, the installation of an EPDM membrane can be carried out in conjunction with the use of a cool roof solution. Where EPDM guarantees optimum waterproofing of your flat roof, the cool roof method optimizes your home's insulation. Thanks to a reflective paint, your roof can reflect some of the sun's rays and mitigate the high heat in the summer months.
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The disadvantages of EPDM membranes
As you can see, the choice of an EPDM membrane seems to be a very attractive one for the individual. Despite this, this waterproofing solution does have a few drawbacks.
Firstly, EPDM membranes are not the most environmentally-friendly solution available, as they are largely composed of elements from the petroleum industry.
On the other hand, installation must be carried out by a professional. Poorly installed, this membrane can pose a real risk to the watertightness of your roof. If you're looking for an easier-to-install alternative with good thermal resistance, you may also be interested in the advantages of PVC membranes, often favored for flat roofs in urban areas.
For or against: our final opinion
All in all, EPDM membranes are an excellent waterproofing solution for flat roofs.
Its many advantages more than compensate for its shortcomings. And if you want to go one step further, you can even combine it with a cool roof solution for a two-in-one roof.
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