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Products adapted to our sometimes
extreme weather

Polyurethane and cellulose: quality products only

In addition to the quality of our installations and services, Isolation du Nord has built its reputation for excellence by exclusively using recognized and reliable products. We use Boreal nature polyurethane foam (spray urethane Type 2) and cellulose (blowing wool) insulation, products renowned for their high efficiency.

Developed locally and perfectly adapted to our weather, the products used by Isolation du Nord have been keeping our many clients warm for nearly 20 years!!

Spray Polyurethane

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The Isolation du Nord team uses HEATLOK Lavender polyurethane foam, a mix of renewable soybean oil, recycled plastic bottles and water.

Designed as a foam, Boreal nature polyurethane insulation is considered the most efficient and most effective product available. Its performance is superior to any other insulating product on the market.

The advantages of using environmentally-friendly Boreal nature polyurethane spray foam:

  • It provides a perfect seal;
  • It prevents leaks and air infiltration;
  • It is moisture resistant and prevents the formation of mould and mildew;
  • It has an R-value of 7 per inch, has excellent insulating properties, in fact, it has the highest value of all insulating materials;
  • It protects against temperatures of -60 °C to +80 °C;
  • It is stable, rigid and durable, it stays put without compressing or crumbling;
  • It is highly adhesive, it actually sticks to everything;
  • It is flexible and quick to install;
  • It produces no harmful fumes and is safe for the ozone layer (Zero ODS);
  • It meets the CAN/ULC S705.1 standard for materials;
  • It has been tested by independent laboratories;
  • It acts as an air barrier and exceeds all building codes requirements for air barrier systems;
  • It provides a waterproof barrier.

Boreal nature polyurethane spray foam is intended for the following:

  • Concrete surfaces;
  • Exterior walls where it acts as an air barrier;
  • Interior walls of the house (brick, wood or concrete);
  • Attics and lofts;
  • Crawlspaces (cellars);
  • Insulation for cathedral ceilings;
  • Solariums, sunrooms, building additions and others;
  • solariums, verrières, agrandissements et autres...
  • Buildings certified by the Canadian Construction Materials Centre (CCMC).


Boreal nature polyurethane spray foam can only be installed by authorized contractors who comply with the CAN/ULC S705.2 standard. The temperature for application and required sampling is -5 ° C to +35 ° C.

Cellulose or blown-in wool

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The cellulose insulation used by Isolation du Nord is made of recycled paper fibres and minerals, providing fire and mould resistance. Cellulose reduces air leaks, fills the smallest of cavities and provides uniform and seamless coverage (thermal bridge). With this type of insulation however, one or more ventilation baffles must be installed to ensure proper air circulation in the soffits.

The advantages of using cellulose insulation:

  • Savings of 30 to 50% on heating and cooling costs;
  • It is non-polluting, non-irritant and non-toxic for the inhabitants of the home;
  • It provides excellent indoor soundproofing due to its superior capacity for sound absorption;
  • It provides excellent fire resistance;
  • It has no unpleasant odour (ASTM C739);
  • The insulation is injected at a density of 3.0 lb/cubic foot in wall cavities, which prevents sagging and makes the walls airtight by reducing air leaks;
  • It has very low VOC emissions. This product complies with the emission limits in UL 2818-Section 7.1 and 7.2., according to the UL 2821 method;
  • No risk of corrosion. .

As an anti-condensation treatment, cellulose eliminates condensation problems on the structural elements in contact with outer surfaces.

Cellulose is useful for the following locations:

  • Ceilings in noisy areas and in very large rooms;
  • Common walls;
  • Composite partitions;
  • Attics and lofts (insulation);
  • Exterior walls (insulation);
  • Interior walls and floors (soundproofing);
  • Prefabricated steel buildings;
  • Profiled or corrugated metal roofs;
  • Ventilated roofs;
  • Under concrete slabs;
  • Wall cavities.


  • Cellulose 85 %
  • Boric materials 15%

Application Density
  • 1.28 lb/cubic foot

Established Density
  • Attics or lofts: 1.6 lb/cubic foot
  • Walls: 3.0 lb/cubic foot
  • Floors: 2.5 lb/cubic foot

Thermal Resistance
  • R-3.8 per inch