Energy Efficient Options for a Flat Roof

The area you reside, the architectural style of your house, and the customary local preferences, amongst others goes a long way in determining the kind of roofing pattern for your house. But if you are out for an energy efficient roofing option then a flat roof pattern is highly recommend. There are energy efficient options for a flat roof for you to consider for your house. King Koating trained roofing professionals stand behind the quality and reliability of their work.

However, flat roof present several challenges

  • Its  installation is very complex
  • The problem of persistent drainage
  • Lack of adequate insulation
  • Difficult to maintain

Just like many other homeowners in Toronto, you might be considering replacing your roof. The new energy-efficient roofing patterns promises a reduced cooling costs, extended roof performance with lower maintenance, and an improved wind resistance (up to 110 mph), better seals and less likelihoods of leaks and access by wind-driven water, and improved insulation to prevent heat exchange.

There are basically three main types of materials options for the flat roof, these includes.

1. Spray Roofing – Seamless Spray Roofing Membrane or Sprayed Polyurethane Foam (SPF). 

 The spray roofing releases a chemical reaction that makes the foam to expand twenty or thirty times, making a solid, unbroken roof system that adheres across the entire roof when two liquids are mixed at the spray nozzle. It also provides an great water resistance and thermal insulating properties. This can be over 500 times more energy-efficient than the conventional tar and gravel. Because the sprays will stick to almost anything, you don’t really need to remove the old roofing materials. The foam is afterwards treated with protective “elastomeric” coating. That is to say, the coating protects the foam and stretches with it both in heat or cold. This has been proven to reduce energy costs by as much as 58% and If properly cleaned, primed and recoated correctly every ten to fifteen years, the spray roofing can last over 50 years or more.

  1. Thermoplastic Olefin or Polyolefin (TPO). 

The thermoplastic olefin or polyolefin (TPO) creates a single-ply roof membrane. It consist of ethylene propylene rubber, enabling durability with a good flexibility to react to building movement. The thermoplastic olefin or polyolefin (TPO) resistant to punctures and tears from impacts and It is ozone and algae resistant. Seams are welded in patterns that enable manufacturers to claim that they are a single piece. The membrane is usually attached around the perimeter and at all penetrations and after that held in place with the aid of ballast.

  1. Ethylene Propylene Diene Monomer (EPDM). 

Ethylene Propylene Diene Monomer (EPDMis a single-ply membrane that has been in use since the 1960s. It’s less expensive nature and relative ease to install has made it very common. EPDM is a rubber material, therefore makes it flexible enough to handle building movement. Depending on the local weather (particularly wind) the EPDM can be installed in three ways

  1. It can be fully fixed across the entire roof,
  2. mechanically secure to the substrate,
  3. Loose-laid and covered with a ballast (often river rock) to keep it in place.

All of these three systems offer energy efficient options for homes with a flat roof.


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