Green roofing: an environmentally responsible and sustainable choice

Many materials can be used for roofing, but are they all the same? Which ones are environmentally friendly choices and why? Here is a list of 5 types of green roofs, their characteristics and their benefits!

Green roofing

Obviously, when we think of an eco-friendly roof, a green roof is probably the first idea that comes to mind because of the greenery that is present. And it is precisely this type of roof that is the most ecological! In addition to being pretty, a green roof absorbs pollutants, dust and gases, while reducing heat islands.

In addition, a green roof protects your roof from the weather and heat loss, on top of being a great habitat for insects and animals. And if you feel like it – and your roof structure is strong enough – you could even put in a vegetable garden!

Metal roofing

Recyclable (it can even be made from recycled materials), a metal roof is also an environmentally friendly choice, as well as having many other advantages. A metal roof has an exceptional lifespan of over 50 years and requires no maintenance. It also prevents snow from accumulating as it slides down its sides, and it does not crack or puncture.

Finally, if you want to collect rainwater, a metal roof will be very useful!

Elastomeric membrane roofing

An elastomeric roof is a two-layer membrane that can be used as a waterproofing membrane when you want to build a green roof. An elastomeric membrane is very durable and has a lifespan of 25 to 35 years.

However, there is a risk of fire if the installation with a torch is not properly carried out by an experienced roofer.

TPO roofing

Fully recyclable at the end of its useful life (after a minimum of 20 years), TPO roofing membranes are also incredibly resistant to weather, mould, insects, fire and pollutants.

What is more, its white color helps to reflect the sun’s rays rather than absorb them, thus limiting the effect of heat islands. In addition, TPO roofing is generally more affordable than many other materials.

EPDM roofing

Like elastomeric and TPO membranes, an EPDM membrane is perfect for flat roofs on residential, commercial and industrial buildings. Highly durable and recyclable, it can also reduce heat islands if you choose a white membrane, and it can be used as a waterproofing membrane for a green roof or a roof terrace.

EPDM roofing is also resistant to weather, insects and airborne pollutants. And unlike an elastomeric membrane that must be installed with a torch by a roofing contractor, an EPDM roof has seams that are bonded with adhesive.

In summary

There are different types of eco-friendly roofs:

  • TPO roofing
  • EPDM roofing
  • Green roofing
  • Metal roofing
  • Elastomeric membrane roofing

You can choose one of these coatings when the time comes to renovate the roof of your residential or commercial building, or for re-roofing.

Depending on the type of building and the shape of the roof, our specialists at Clinique de la toiture FCA in Montreal will be able to tell you the most appropriate options and the costs associated with each!


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