Is Spray Foam a Vapour Barrier?

When professionally installed, spray foam (Spray Polyurethane Foam) serves as a vapour barrier. The application satisfies all the pre-requisites for a vapour barrier as specified by the majority of building codes. In fact, SPF does the most complete job of any application – it provides excellent thermal insulation; an effective air barrier; and an efficient vapour barrier all at one time. Best of all, installing SPF provides the highest R-Value of any insulation material available today.

For many professionals, Spray Polyurethane Foam has proven to be the best overall product for the job. And while municipal building inspectors recognize SPF as a vapour barrier “system”, there remain various interpretations, depending on locale. At Great Northern Insulation, the team can professionally assess a project and verify code requirements. As it is, SPF delivers consistent results in spaces where air and moisture control are critical to the success of the project.

spray foam vapour barrier

Beyond thermal insulation, SPF is particularly effective because it impedes the accumulation of moisture. In a typical residential home, almost 60% of the heat loss is somehow related to the moisture in the air, so it makes sense to stop undesirable moisture movement, and consequently stop heat loss. Spray foam does it all, and more – it’s essentially a “built in” vapour barrier that does not absorb moisture and won’t allow mold to grow. No other product can compare.

Whatever the project, and regardless of scope, Spray Polyurethane Foammust be installed with a professional touch. At Great Northern Insulation, the install teams specialize in SPF. Installers are experts in the field, and have years of experience with the SPF product and the installation. GNI teams abide by construction standards, national building codes, and local by-laws. Everything is installed according to the manufacturer’s product specifications, without taking any shortcuts.

GNI stands behind every product installed, and every installation performed. The idea is to do it right the first time, and to provide 100% customer satisfaction on every job.

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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.

Best of 2022

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

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.

Do it right the first time
- with foam masters^TM

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.

Huntsman HEATLOK® SOYA HFO™

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.

3M^TM products.
Quality + Performance = Savings

3M^TM 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

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.

Enbridge Incentives

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

Great Northern Insulation proudly abides by a renovation-specific Code of Conduct set by RenoMark™.

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Climatizer

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.

Is Spray Foam a Vapour Barrier?

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