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The Environmental Benefits of Attic Insulation

May 01, 2017

attic insulation environmental benefits torontoWhile most homeowners associate attic insulation with keeping a home warm and cutting down on utility costs, there are also environmental benefits to attic insulation. Improving or upgrading attic insulation actually means two things: reducing the amount of energy that's being wasted in summer and winter AND consuming less energy for heating and air conditioning. Simply put, less energy consumption means less negative environmental impact. Poorly insulated homes allow heated air to escape in winter, and warm outside air to infiltrate in summer. As a result, the HVAC system (heating and air conditioning) works overtime, consumes energy, and emits harmful pollutants into the environment.

This is considered a carbon footprint, and today, the idea for homeowners is to reduce their carbon footprint. Wasting less energy and emitting fewer pollutants makes for a more responsible carbon footprint. When attic insulation is upgraded, homeowners generally see a reduction in utility bills almost immediately, all while contributing to environmental sustainability. When the attic is properly air sealed, and insulation performance improved, there is far less air leakage through the attic, and much better thermal protection.

The HVAC system does not need to work so hard, and energy consumption is reduced noticeably. As well, carbon dioxide emissions are reduced, and this helps to control the "Greenhouse Effect". By any measure, a well-insulated house will cut down on personal energy usage. The savings on gas and electricity will be year-round, and for many years going forward. This is particularly relevant in the attic, because there is a great deal of air leakage occurring, and therefore a great deal of wasted heat and air conditioning. New home or old, the attic is one of the most important areas of the house where insulation should be at maximum performance. Having a completely energy efficient home is obviously the ideal, and the attic space is a perfect place to start. But while upgrading insulation is definite progress, homeowners should not forget about proper ventilation. Even the best insulation product won't perform at peak if ventilation in the attic is substandard. In fact, poor ventilation can often lead to bigger problems - like moisture collection, undesirable condensation, and sometimes "ice damming". Whatever the attic insulation approach, this is work that's best left to a professional contractor. For some, it may be tempting to get into a do-it-yourself (DIY) project, but the results are usually less than satisfactory. The experts "cover all the bases" - they professionally insulate, ventilate, and retrofit, ensuring optimum energy efficiency. Insulation experts know what product works best, and how to manage installation problems, should these arise.

At Great Northern Insulation, qualified installers focus on delivering energy efficiency, whether in the attic, basement, or throughout the home. Large home or small, GNI addresses air sealing, insulation, and ventilation as a complete system. Customers are provided with recommendations that deliver the best return-on investment. For more information, or to arrange a home energy assessment, contact Great Northern Insulation toll free at 1-800-265-1914 or visit the company website at www.gni.ca .

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

Muskoka, Haliburton, Northern Ontario

1027 Elwell Park Road
Gravenhurst, Ontario
Canada P1P 1R1

TOLL FREE: 1-800-265-1914

Central Ontario

29 Ferndale Industrial Drive
Barrie, Ontario
Canada L4N 9V5

TOLL FREE: 1-800-265-1914

Greater Toronto Area

2 Guided Court
Etobicoke, ON
M9V 4K6

TOLL FREE: 1-800-265-1914

GTA East

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

TOLL FREE: 1-800-265-1914

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

Niagara Region

25 Lincoln Ave
St. Catharines, ON
L2P 2C7

TOLL FREE: 1-800-265-1914


Great Northern Insulation - Better Business Bureau Profile.

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

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

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

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.


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™.


We are Verified & Bonded by eRenovate. When you choose to proceed with our services through their platform, you receive the gaurantees set forth through their program.

As Seen on Love It or List It

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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