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When is it Good to Use Spray Foam Insulation?

January 19, 2015

For proponents of spray foam insulation, it's always a good time to use the spray foam product.It's become a favorite of many professionals in the industry, and has satisfied many customers because of the benefits that it brings to an insulation project.The spray foam products are generically known as polyurethane foam and are being used routinely in attics and roof cavities, as well as inside the walls and under the floors.

Professionally applied, spray foam insulation is sprayed into a given space in thick liquid form, and transforms itself into a thick, hard layer of insulation.It performs as BOTH an air barrier AND a moisture barrier at one time - probably one of its best product features. It creates a space that is absolutely airtight, watertight, and therefore resistant to mould growth.Best of all, there is no need to install a separate and freestanding vapor barrier.

Spray foam insulation delivers the highest R-Value rating of any product on the market.In any insulation project, you want to reach those high levels - in fact, the higher the better.With other insulating products, it's not uncommon to have gaps or openings that allow for heat (and cool) to be lost and for R-Values to suffer as a result.But with a professional spray foam install, there are no holes or openings, and no heat loss.

Having a home re-insulated with spray foam benefits the entire indoor air environment in a residential home.The enhanced insulating value allows HVAC equipment to perform better, especially if there is an energy-efficient furnace already in place.The truth is, it's not unusual to experience energy cost savings of up to 40% from one season to the next, and especially in the extreme ranges of cold winters and hot summers.

Spray foam insulation can be installed practically anywhere.There are, of course, some exceptions, but an expert installation professional will know about any limitations and any safety implications.In some situations, a professional installer might recommend "topping up" a spray foam install with another product - blown-in insulation - a proven technique that combines the benefits of both products for better results.

One of the big questions that arise with spray foam insulation is about the do-it-yourself approach.The fact is, the average homeowner is not adequately trained to handle or install spray foam.The chemical compounds require special handling, the equipment requires skill and expertise, and the installation itself requires some proficiency.The do-it-yourself approach can be risky, and calling in an expert to fix up a bad job can be costly.

With regard to cost, spray foam is an expensive proposition.But it must be looked at as an investment - the many benefits, both short term and long term, far outweigh the initial cost of product and installation.In addition, the significant energy savings make the investment worthwhile, season after season.In some cases, there may be government rebates or incentives that could be helpful in moderating the overall installation costs.

Western Ontario

935 Keyes Drive
Woodstock, Ontario
Canada N4V 1C3

Phone: 1-800-265-1914

Fax: (519) 539-7946
TOLL FREE: 1-800-265-1914

Southwestern Ontario

7035 Industrial Drive
Comber, Ontario
Canada N0P 1J0

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Muskoka, Haliburton, Northern Ontario

1027 Elwell Park Road
Gravenhurst, Ontario
Canada P1P 1R1

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Central Ontario

29 Ferndale Industrial Drive
Barrie, Ontario
Canada L4N 9V5

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103 North Port Road
Port Perry, Ontario
Canada L9L 1B2

TOLL FREE: 1-800-265-1914

GTA & South Central Ontario

450 Industrial Dr,
Toronto (Milton), Ontario
Canada L9T 5A6

TOLL FREE: 1-800-265-1914

Eastern Ontario

1035 Moodie Dr #1,
Nepean, ON
K2R 1H4

TOLL FREE: 1-800-265-1914


259 Campbell Street
Sarnia Ontario
Canada, N7T 2H3

TOLL FREE: 1-800-265-1914

Niagara Region

6260 Don Murie St
Niagara Falls, ON
L2G 0B4

TOLL FREE: 1-800-265-1914


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Best of 2017

From reputation to responsiveness, HomeStars consistently ranks Great Northern Insulation at better than 95% for customer satisfaction. Thanks to everyone for the great ratings! 

HomeStars 2018

Best of 2018

For the second year in a row, HomeStars consistently ranks Great Northern Insulation at better than 95% for customer satisfaction. Thank you again to everyone!

Homestars Best of 2019 Award

Best of 2019

For the third year in a row, HomeStars ranked Great Northern Insulation at better than 95% for customer satisfaction.

Homestars Best of 2020 Award

Best of 2020

For four years now, HomeStars has ranked Great Northern Insulation at better than 95% for customer satisfaction.

Homestars Best of 2021 Award

Best of 2021

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

Best of 2022

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

Enenrgy Savers

Energy Saving

Energy saving and energy efficiency is easier than one might think. Great Northern Insulation helps to identify performance issues, while taking advantage of improvement opportunities.

100% Canadian

100% Canadian

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

WALLTITE® ECO™ is a high-performance system, professionally installed by certified and approved specialists. Its C.C.M.C. approved (Canadian Construction Materials Centre) - with product quality guaranteed - and with installation by highly trained experts with the technical know-how to do the job right, the first time.

Insulthane Extreme

Insulthane® Extreme

For the ultimate in high performance spray foam insulation, Insulthane® Extreme is the professional choice for residential, commercial, and industrial application. With improved thermal performance over other products, Insulthane® Extreme has an exceptionally low Global Warming Potential (GWP). Considered environmentally friendly, this next generation spray foam insulation is non-ozone depleting, and exceeds specifications of other HFC product alternatives.


3MTM products.
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).


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Baeumler ApprovedTM gives you peace of mind when connecting with contractors, trades and home service providers. All Baeumler Approved members have demonstrated high quality work for customers and other trade professionals. Members must also have Workers Compensation, liability insurance of at least $1,000,000 and prove professional certification.

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.


Enbridge Incentives

The Energy Conservation Program provides incentives of up to $1,600 to customers who achieve energy efficiency and fuel savings – and Great Northern Insulation can pave the way.


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