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Using Spray Foam as Insulation

December 05, 2014

Spray foam insulation, when properly installed, can significantly change the dynamics of an indoor air environment.This is an effective and efficient insulating system, and a product that delivers a host of benefits that are actually measurable.It's no wonder that spray foam has become the fastest growing segment in the industry.In fact, spray foam insulation has rapidly become the "go to" product for both insulation contractors and construction trades.

Measurable results means heating and cooling cycles that are working efficiently - indoor environment that is comfortable from one season to the next - and of course, substantial energy savings.Indeed, homes that are properly insulated with spray foam can experience between 30% and 50% annual cost savings.And when considering long-term value, there really isn't a product on the market that can compare with these results.

Spray foam is truly multi-purpose, and with impressive product features.It's an excellent sealant; a superb insulator; and an effective moisture barrier.In addition, it serves to structurally fortify the area where it's applied.The dense blanket of foam, once installed, traps the indoor air, and protects warm air in the winter, and cool air in the summer.And with proper ventilation, HVAC equipment starts to operate at its maximum capability.

There is no other insulation product, or combination of products, that can inhibit air leaks like the spray foam product.It's a system that allows for balanced air circulation indoors, and for the appropriate air exchange of fresh air and stale air.For homes where insulation is poorly planned and poorly installed, there are noticeable imbalances.These imbalances contribute to poor efficiencies from one season to the next, and costly energy bills.

Today, more and more homebuilders, contractors and renovators are opting for the spray foam product. And with the highest R-value of any product on the market, it has become a favorite for attics, roofs and even inside walls.But it's an application that is best left to the experts - professionals who have experience with the product itself, and with the unique nature of the application process.This is an installation that must be flawless the first time.

The spray foam product (also known generically as polyurethane foam) requires special handling, the application equipment requires expertise, and the installation itself requires skill and proficiency.All things considered, it's clearly a project for the professionals.They understand the complexities of the application, they know how to troubleshoot, and they know how to safely prepare the job site and safeguard everyone during an installation.

With spray foam insulation, it's worth mentioning project cost.The spray foam product and the installation are known to be more costly than other product options.But the benefits make the cost worthwhile.Spray foam will last a lifetime.There is no need for replacement.And in terms of a "payback period", it's very reasonable at between 2 and 7 years.In the long run, the benefits of the application constitute a very good investment.

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Phone: 1-800-265-1914

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HomeStars has ranked Great Northern Insulation as a company that goes above and beyond in every aspect of business for the year of 2021.

Homestars Best of 2022 Award

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HomeStars has ranked Great Northern Insulation as a company that goes above and beyond in every aspect of business for the year of 2022.


GNI is the Authorized & Trusted Insulation and Air Sealing Installer for Lowe’s

Trusted for Over 40 Years

Over 40 Years in Business

At GNI, we service your project with the most experienced staff in the industry. Ongoing professional development is an obsession at GNI and we will not compromise at any level to bring to our customers the very best Installers, Sales Representatives, Customer Care Personnel, Field Superintendents, Estimating and Technical Support to your project.

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Great Northern Insulation is recognized as Canada's largest full-service insulation contractor. GNI is 100% Canadian owned, proudly serving Ontario customers since 1980.

Foam Masters

Do it right the first time
- with foam mastersTM

January, 2021 regulatory phaseout of hydrofluorocarbons (HFCs) with the introduction of WALLTITE CM01. Using hydrofluorolefins (HFOs) with lower global warming potential (GWP) compared to HFCs, WALLTITE CM01 is the next generation of spray foam insulation.



Heatlok® Soya HFOTM leverages Honeywell’s latest Solstice® Liquid Blowing Agent technology. This new hydrofluoroolefin (HFO) blowing agent is the most environmentally conscious blowing agent produced to date, with a zero ozone depletion potential (ODP) and a global warming potential (GWP) of 1, which is more than two orders of magnitude (99.9%) lower than HFCs used in this industry.


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Quality + Performance = Savings

3MTM energy-saving products are designed to keep warm air in, and cold air out, while keeping energy bills down. Products optimize energy efficiency in buildings and homes; improve indoor environment for occupants; and effect the reduction of seasonal energy costs. 3M products are authorized for LEED credits (Leadership in Energy/Environmental Design).

Holmes and Holmes

Holmes and Holmes


Mike Holmes and his son Mike Jr. (MJ) convert MJ’s bachelor bungalow into a two-storey home for MJ and his girlfriend Lisa. Choosing the newest materials and build techniques, the father and son team follow Mike’s famous motto – “Make it right.” The show can be watched on HGTV and DIY Network.


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The Home Efficiency Rebate Plus program offers up to $10,000 in home reno rebates – and Great Northern Insulation can pave the way.


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Climatizer Cellulose


CLIMATIZER PLUS cellulose insulation is manufactured from a minimum of 85% locally-sourced post-consumer recycled newsprint. Non-toxic additives are applied to the uniquely fiberized paper generating a building material with superior thermal and acoustic properties, as well as exceptional resistance to fire, moisture, mould and pests.

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