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Insulating Wine Cellars

June 18, 2016

In any wine cellar, large or small, the two most important factors are temperature and humidity. These will have a direct impact on the wine, and when out of sync, a negative impact. Today, most wine cellars operate with some type of "climate control" system to ensure that temperature and humidity levels are properly maintained. But none of this will be possible if the wine cellar is built incorrectly or insulated inappropriately. And if there's no vapour barrier (or a substandard vapour barrier) the chances of success for the wine cellar are greatly diminished. A wine cellar operates at peak performance when the temperature and moisture levels are in harmony. For this, wine cellar experts suggest Spray Foam Insulation as the preferred application when insulating the space. Once applied, SFI cures into a dense, rigid envelope that provides the ultimate in R-Value, while adding structural strength. SFI is a "code-approved" vapor barrier and air barrier, while it provides thermal insulation to the installed space. The big advantage with SFI is that one installation does it all - moisture control, air management, and insulation. The importance of balanced humidity cannot be overstated in a wine cellar. The humidity keeps wine bottle corks from prematurely drying out, and thus prevents them from losing their ability to seal. Humidity is essentially the amount of water vapor in the air - and regulated humidity is absolutely essential for quality wine storage. When a wine cellar is well insulated and provided with an effective vapour barrier, humidity levels will be better maintained and the cooling system will be better balanced. This is where Spray Foam Insulation can do the best job. As for installation, it's important to have experts do the work. For Great Northern Insulation, SFI is a highly specialized application. Installers are professionals, and with years of experience. They install to code, and they follow the manufacturer's product specifications. Spray Foam Insulation requires expertise with both product and application, and at GNI customer satisfaction is assured with every install. When it comes to wine cellars, the work has to done right the first time - anything short can comprise the integrity of the space and the stock of wine. Importantly, a spray foam application should not be approached as a DIY (do-it-yourself) project. It's work that requires product knowledge and installation proficiency. And it's work that has to be done the right way - otherwise, having to do a re-install could get costly and time consuming. Above all, wine cellars demand perfection when it comes to insulation, so having it done expertly makes abundant sense. Finally, Spray Foam Insulation is a premium product - it's not suitable for all project budgets, but no other product will perform as well for a wine cellar. For a wine connoisseur, the wine cellar can be a part time hobby or a serious collection effort. But whatever the case, it's not appropriate to cut corners when building, or sealing, or insulating. For the very best results, and for long term performance, Spray Foam Insulation is the way to go.

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

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1027 Elwell Park Road
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Canada P1P 1R1

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Etobicoke, ON
M9V 4K6

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Canada L9T 5A6

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

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Niagara Region

25 Lincoln Ave
St. Catharines, ON
L2P 2C7

TOLL FREE: 1-800-265-1914


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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

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.

100% Canadian

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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.


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).

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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The GNI crew have been featured installing insulation on Love It or List It - have you seen our logo in an episode?

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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