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How Spray Foam Performs in Extreme Temperature Fluctuations

Posted by Ecostar Insulation on October 06, 2025

For the average home, as the weather changes outside their home, the temperature inside changes as well. As we move further into Autumn, most Canadians can expect fluctuating temperatures up until winter settles in during December, which means your home’s temperature will also experience less stability. While these fluctuations don’t seem very significant, they can actually impact the comfort of your home, unless you have some kind of spray foam insulation in Toronto. Many are unaware that spray foam insulation’s R-value allows it to keep temperatures inside your home stable even during extreme weather fluctuations. Its strong performance, along with other benefits, is the reason why homeowners are switching over to spray foam. If you want to improve the comfort of your home, save money, and improve energy efficiency, contact EcoStar Insulation today for a quote on new spray foam insulation.

Understanding Extreme Temperature Fluctuations

spray foam insulation torontoExtreme temperature fluctuations refer to any kind of drastic change in the weather. For example, oftentimes in the fall months, Canadians experience 20+ degree afternoons, but by the time the night rolls around, the temperature falls to somewhere around 8 degrees. This can make your home feel comfortable or even warm in the day and disproportionately cold in the evening and night. 

If you do not have adequate insulation, then you may experience drafts, heat loss, and higher energy demands. Traditional fibreglass or cellulose insulation is simply not durable enough to last through decades of harsh Canadian weather. On top of that, their R-values are not high enough to maintain consistent temperatures in your home. 

If you want to keep your home temperatures stable, even through periods of fluctuating weather, you need spray foam insulation in Toronto.

How Spray Foam Insulation Works

Spray foam insulation’s R-value is what makes it far superior to other insulation options on the market. R-value refers to your insulation’s ability to withstand heat transfer. Insulation with a low R-value allows heat to leave your home easily in the winter and allows heat to enter your home during the summer. This is why the temperature in your home fluctuates based on the weather outside. The higher the R-value of your insulation, the more stable your indoor temperatures will be, as heat produced by your HVAC system will not be able to escape easily in the fall and winter months.

Spray foam insulation, unlike any other variety, creates an airtight seal that completely envelops your home. This completely prevents moisture and drafts from entering your home, further stabilizing temperatures indoors. 

Performance of Spray Foam in Extreme Heat and Cold

When the weather is hot, spray foam insulation prevents the hot air from outside your home from entering your home. This will help keep your home nice and cool and will also reduce the strain put on your HVAC system, as your air conditioning does not need to work as hard to maintain the desired temperature indoors. The airtight seal of spray foam also prevents humidity from entering your home. 

When the weather is cold, spray foam insulation prevents the hot air generated by your HVAC system from leaving your home. This will help keep your home warm and, again, will reduce the strain put on your HVAC system, as your heating system doesn’t need to work as hard to maintain a consistent temperature. Spray foam will also help prevent ice dams on your roof, drafts, and leaks. 

Overall, the reduced load being placed on your HVAC system results in lower energy expenditure, increased efficiency, and lower energy bills. 

Tackle Fluctuating Temperatures with EcoStar Insulation

As temperatures continue to shift throughout the season, ensuring your home stays comfortable and energy-efficient becomes even more critical. With spray foam insulation in Toronto, you can protect your home against extreme fluctuations, reduce energy costs, and enjoy peace of mind year-round. For expert installation you can trust, reach out to EcoStar Insulation and take the first step toward a more comfortable home.

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