Basement & Wall Insulation

Basement Wall Insulation

Basements can account for about 20 percent of a home’s total heat loss due to uninsulated area both above and below grade level. Insulating a basement is one of the easiest ways to improve your home’s energy efficiency and comfort.
In addition to reducing heating costs, insulating a basement can keep rooms above it more comfortable and prevent moisture problems, insect infestation and radon infiltration.

Attic insulation
Attic insulation

Basement wall insulation helps significantly to keep your home warmer in the winter and cooler in the summer. You will reduce your energy bills by operating the heater or air conditioner at lower intensities. The insulation is highly effective at preventing heat loss during the winter and indoor temperatures tend to be consistent throughout the home and you can eliminate draft sources in your home.
The main drawback of basement wall insulation is that it is a costly process for existing buildings which with the rebate available it is not considered as drawback.


Types of insulation:

Energy Advisor

Types of insulation

There are several types of basement wall insulation available, ranging from concrete and foam board to blanket insulation for unfinished basements.


Sprayed foam insulation


Spray foam is a chemical product created by two materials, isocyanate and polyol resin, which react when mixed with each other and expand up to 30-60 times its liquid volume after it is sprayed in place. The foam insulations create a dense, sponge-like environment that can save energy and lower utility bills. The product’s durability which is one of the main advantages over other kinds of insulation can make it difficult to remove.

Loose-fill insulation


Loose-fill insulation consists of small particles of fiber, foam, or other materials. The most common types of materials used for loose-fill insulation include cellulose, fiberglass, and mineral wool. Most fiberglass products contain 40% to 60% recycled glass. Mineral wool is usually produced from 75% post-industrial recycled content.

Foam board or rigid foam insulation


They are very effective in exterior wall sheathing, interior sheathing for basement walls, and special applications such as attic hatches. They provide good thermal resistance with R-values range from R-4 to R-6.5 per inch of thickness (up to 2 times greater than most other insulating materials of the same thickness). Sheathing reduces heat conduction through structural elements like wood and steel studs.

Blanket (batt and roll) insulation


the most common and widely available type of insulation which comes in the form of batts or rolls and designed for easy handling and use between framing, such as studs and joists.

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R- Value

Energy Advisor

R- value

An insulating material’s resistance to conductive heat flow is measured or rated in terms of its thermal resistance or R-value. The R-value of insulation is a value that is used to measure how well a specific type of insulation can resist heat flow and measure the effectiveness of insulation; the thicker the insulation, the higher the R-value and overall effectiveness of the insulation.

A Smart Decision

Energy Advisor

Basement insulation


Add at least R23 to 100% of basement



Add at least R12 to 100% of basement



Add at least R23 to 100% of crawl space wall


Add at least R12 to 100% of crawl space wall


Add at least R32 to 100% of floor above crawl space

Exterior Wall Insulation Rebate


Add at least R20 to 100% of building



Add at least R9 to 100% of building to achieve a minimum of R12


Add at least R3.8 to 100% of building to achieve a minimum of R12