There are really only two major types of insulation used in the walls and ceilings of Canadian residential construction. They are cellulose and glass fibre. Cellulose is produced from recycled paper and borates. Borates are fire retardant and comprised of two types of chemicals: borax and boric acid.

These are the same chemicals commonly found in day-to-day items such as beau­ty products, laundry soap and fertilizers. Glass fibre is comprised of sand, boron, phenol formaldehyde and a percentage of recycled glass product.

Cellulose is a loose-fill, fibrous insulation made from selected paper stock. Each bag displays Environment Canada's "Ecologo", classifying it as an "environmentally friendly" product. Cellulose may be hand poured or applied using a blowing machine. Machine application ensures that the cellulose is prop­erly conditioned and placed at the required design density.

The great advantage of cellulose is that it forms itself to whatever cavity it is injected into. This enables it to fill the cavity with the most consistency and does not allow any voids.

Glass fibre batt is the most widely used type of insulation by contractors because it is cost-effective nature. It is also more environmentally friendly today, as major manufacturers are making formaldehyde-free fibreglass insulation.

Typically it is installed in formed batts for the walls and loose fill for the attic. If not installed properly the product can leave voids, which cause air gaps leading to increased heating/cooling costs. Loose fill product is made from the same material as batts but is left in its fibrous state and must be blown-in using a machine and delivery hose. Glass fibre is fire retardant by nature and will not rot or decay over time. The product is quick and easy to install but offers less thermal value than cellulose.

Cellulose and glass fibre function under very different principles. Cellulose is a paper product and derives its thermal value from the density of the product, which means less air movement. Glass fibre derives its thermal value from the air, which it traps within its fibres.

Compare Cellulose vs. Fibreglass!  Click attachment below.

Acoustic Properties of Cellulose Fibre

Wall Cavity Insulation - Thermal Image View

Technical Information

  • Thermal Resistivity

    thermal properties The primar y property of all thermal insulation, cellulose fibre provides greater energy savings over other products since it is

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  • Infiltration/Convection Properties

    infiltration properties Natural movement of air either by convection of air from warm to cold environments or movement by pressure differential).

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  • Acoustical Product Information

    accoustical properties Cellulose fibre, compared to other insulation products, has superior properties for improving noise suppression in wall, floor or ceiling construction.

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  • Moisture Resistance

    moisture resistancy Cellulose fibre has the unique ability to slowly absorb and dissipate excess moisture thereby reducing the risk of potential condensation

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  • Fire Resistance

    fire resistancy Cellulose fibre exhibits a fire resistance capability identified in the physical properties chart. Cellulose fibre will not melt or degradeas

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