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How to Use Spray Foam Insulation on Your Roof and Attic

The roof is arguably the essential part of your home. It’s where the rain, snow, and sun all come together to create a temperate environment for you and your family.

That is why spray foam insulation is a great way to improve the performance of your home’s roof performance. Here is where and how to use spray foam insulation on your roof.

Roof Insulation

An excellent roof provides a waterproof barrier between you and the elements. It also serves as an important part of your home’s overall energy efficiency by helping to keep heat inside during the winter and cool air outside during the summer.

Spray foam insulation can help you improve the performance of your roof by reducing air leaks, keeping moisture out of your home, and providing an additional layer of protection against wind-driven rain. Spray foam insulation also acts as an effective barrier against noise pollution, which is especially important if you live near an airport or train tracks.

There are two types of foam insulation for your roof, these are:

  • Open Cell Foam: This is a type of spray foam insulation that’s made from petroleum-based products. The foam is sprayed onto the roof, where it expands to fill in any cracks or gaps between the roofing materials and the framing. While open cell foam can be used on its own as a basic sealant, it’s also commonly combined with other types of insulation for added protection against leaks and drafts.
  • Closed Cell Foam: This type of insulation is created from polyurethane, which is a completely inert substance. The foam expands while it’s sprayed onto the roof, creating an air-tight seal that prevents water vapour from getting inside your home. It’s also highly effective at blocking sound waves and other airborne pollution.

Attic Insulation

An attic is a space between the roof and ceiling of a building, and it’s usually filled with air. This air can trap heat inside your home in the summer and cold air outside during the winter months. Attic insulation helps reduce this problem by filling up the space with more material than just air alone would allow.

Spray foam insulation is also a great way to reduce noise outside your house. It’s important to remember that attic insulation should be installed properly for maximum effectiveness.

Among other insulations, the most effective insulation is spray foam, made from a chemical reaction and expands to fill the space between the wood in your attic, preventing any air gaps. Spray foam insulations have excellent R-values, which makes them very effective.

The process of spray foam insulation is very simple.

  • The spray foam contractor will first clean the attic, removing any debris and dirt that may be present.
  • Then they will install a barrier between the roofing materials and the wood framing of your home to prevent any moisture from getting into your house.
  • Next, they will install blower fans to increase airflow through your attic and venting systems to release any excess vapours produced by the spray foam process.
  • Finally, they will apply a layer of foam insulation to every surface in your attic.


Insulating your roof and attic with spray foam is the best way to increase the comfort of your home. It keeps your house cool in the summer and warm in the winter, which can save you money on utility bills. Spray foam insulation is a great option for many homeowners because it’s easy to apply and provides excellent thermal performance.

Consider having your attic sprayed with foam insulation if you want to improve your home’s energy efficiency. If you live in Saskatoon, Saskatchewan, contact PolarTech Spray Foam for a free quote on foam spray insulation.

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