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Understanding Fiberglass Insulation

March 21, 2016

Unlike so many other home improvement projects, insulating the home will have a positive effect on both comfort and budget. In most northern climes, insulation has more relevance in the winter than in summer, although for many homeowners there's an equally important role during the hot summer. In recent decades, many residential homeowners have opted for fiberglass insulation when deciding on their installation. It's a product option that is quite affordable, with very good results, and with a satisfactory lifespan. Today, with so many big box home centers, there's an inclination for homeowners to undertake DIY projects at every opportunity. Yes - it can save project dollars, and for some, it's a definite need. But it's also true that there's a time and place for a DIY project. As for home insulation, a professional touch is highly suggested. By any measure, the installation or re-installation of fiberglass insulation is best handled by a crew that has product knowledge and installation know-how. And the final outcomes will make a difference. All residential insulation products measure thermal insulation in R-Values. This is a rating that reflects how well a particular product will insulate. In technical terms, R-Value is an indication of resistance to "heat flow". In other words, the higher the R-Value rating, the greater the thermal resistance. And while R-Value should not be the end of the story, insulation products with high R-Values are better (and more expensive). For the most part, fiberglass insulation has lower R-Value ratings than comparable products. Every home is a "building envelope". As such, there are some areas that require more insulation than other areas. For example, roof cavities and attic spaces are far more exposed to the outdoors than other parts of the home, and so require special attention when being insulated. At the same time, exterior walls require a different approach, even though they too are exposed to the outdoors. Here again, a professional touch will ensure that the right insulation product is being installed for the specific application and use. In terms of cost, installing fiberglass insulation will depend on three basics: the amount of R-Value installed; the size of the space and quantity of material; and the cost of installation. As mentioned, the DIY method may well save money, but for optimum results, there's no comparison with a professional job. An expert installer has the project experience to install fiberglass insulation (in batts or loose fill form) in a manner that will guarantee peak product performance. And that means long lasting outcomes for years to come. For many homeowners, fiberglass insulation is the preferred install, primarily because of affordability. But with a professional on hand, various other options may be recommended - options that could deliver much better performance and more substantial savings on energy consumption. After all, the main goal of home insulation is to improve overall energy efficiency and reduce heating and cooling costs. And with the right product and installation, annual utility savings can often make the project investment worthwhile.

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Canada N4V 1C3

Phone: 1-800-265-1914

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Nepean, ON
K2R 1H4

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Canada, N7T 2H3

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Niagara Region

6260 Don Murie St
Niagara Falls, ON
L2G 0B4

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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.


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.


Gold Certification promise

GREENGUARD® Gold Certification ensures the strictest criteria for low-level chemical emissions. Certified products are safe for individuals with sensitivities (children/elderly) and safe for use in school environments and health-care facilities. The product certification is widely recognized by the LEED Rating System (Leadership in Energy/Environmental Design).

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.


Multi-attribute product certification

ECOLOGOTM is an accredited sign of environmental performance – holistic – green – sustainable - and compliant with strict, third party standards. Life cycle criteria for product certification may include manufacturing and operations; health and environment; product materials and performance; and product innovation, development, and management.


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.


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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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