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How to Insulate a Garage?

Insulating your garage is critical to improving your energy performance, ventilation, and fire safety. Both attached and detached garages can benefit from professional garage insulation.

For the attached garages, proper evaluation and fire safety are additional concerns. It makes sure that the home residents are safe and remain safe from any health hazards, including airborne particulates and exhaust fumes.

Before you understand how to insulate your garage, you must understand what should go for garage insulation.

Why Go for Garage Insulation?

Based on the garage, there are various factors that are involved during garage insulation, including build design, budget, and time frame. Therefore, you should consider professional assistance for your garage insulation project.

The insulation requirements vary from one home to another. But overall, the results might be quite similar. These include:

● Better comfort.

● Improved resilience.

● Increased temperature control.

● Better safety and health performance.

● Reduced utility costs,

● Better home resale value.

● Improved noise reduction.

● Increased air quality.

Garage ventilation

Homeowners who want to secure a source of fresh air to their garage, need to have properly ventilated garages with adequate air sealing. Therefore, any areas where air leakage occurs have to be air sealed.

Garage ventilation is critical for attached garages to ensure that the home residents are safe from any hazards. These include airborne particles or exhaust fumes. Moreover, that shared wall between the garage and the home must be air-sealed to guarantee energy performance and safety.

With an effectively insulated shared wall, your entire home will get an energy boost. It happens due to the limited loss of energy that mostly occurs because of those air leaks between the home and the garage walls.

Insulating Garage with Spray Foam

For garage insulation using spray foam, you install a product that will prove an air barrier. Apart from that, it will be a vapor barrier and improve energy performance.

Homeowners who are looking for climate control can tremendously benefit from spray foam. However, it is best to use closed-cell foam in both attached and detached garages to deal with those exhaust fumes.

Spray foam can form its own air and vapor barrier. So you will only need to go for a thermal barrier. And for that, you will only have to cover the spray foam with drywall.

DIY Garage Insulation

If you have some experience dealing with spray foam or similar other projects, you can insulate your garage without any professional help. We highly recommend using 2 lbs of spray foam for your garage insulation.

However, you should get it done with professional assistance because they will be doing the job according to the exact specification and requirements, leaving no loopholes. It will also keep you safe from any potential hazards during the installation process.

How Much Does Garage Insulation Cost?

All garages are not the same, but they are all the same in construction. It is going to depend on the size of the garage. But for understanding, let us consider an example of a 24 x 24 garage.

If they have drywall, injection foam is used, and spray foam is needed if the walls are exposed. So the total cost of spray foam insulation in Toronto will rely heavily on what material you are going for. It can range from anywhere between $4,000 to $9,000.

The cost to insulate the garage door is not included here. It can range from $200 to $300. If items need to be moved or worked around, then the cost will increase.

Pros and Cons of Spray Foam Insulation


● With spray foam insulation, your garage is safe for a lifetime as long as it is out of direct sunlight. Therefore, you will get a high return on your investment.

● 2 lb spray foam insulation has the right kind of R-value, which is in the line of modern standards for green living.

● Your home will face a lower risk of mold or pests once you install spray foam insulation in your garage ceiling.


● Insulating with spray foam is expensive, especially if you want to cover your detached garage.

● You have to deal with your spray foam carefully yet quickly during your DIY insulation project because it will clog the kit up if you leave it unattended for even a small period.

● During the installation process, spray foam can produce a gas that is a potential hazard. But once the foam fully cures, it becomes harmless.

Book Your Assessment Today:

Garage insulation with spray foam can save more on your energy bills, and your home will become much more effective against any temperature changes.

Want to get your garage insulated using spray foam insulation in Toronto? You don't need to look any further. You can book your assessment today to get the job done by professionals.

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