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FAQ's

What is Sprayed Polyurethane Foam Insulation?

Quite simply, it is "insulation plus sealant". As a rigid cellular plastic with over 95% closed cell content, Spray Polyurethane Foam Insulation acts as insulation, an air barrier and, in some cases, also a vapour barrier. Spray Polyurethane Foam Insulation will cut energy costs and improve comfort levels in any building.

What are the properties of Spray Polyurethane Foam Insulation (SPFI)?

  • Continuous, seamless, no joints
  • Can fill cracks, voids and holes
  • Adheres to wood, metal, concrete, masonry, almost all plastics
  • Almost totally impermeable to air
  • High insulation value
  • Durability and long service life
  • Can be sprayed overhead, doesn't sag
  • Speedy, quick set, installation
  • Doesn't settle
  • Only thermal insulation which is tested for VOC's
  • Can be used as a water barrier

Where in the envelope is Spray Polyurethane Foam used?

  • Foundations
  • Crawl spaces
  • Walls
  • Header spaces
  • Roofs
  • Ceilings
  • Interior walls
  • Can be used as the primary air barrier material
  • Can be used to connect other building materials together

Who applies SPF?

Only trained, certified and licensed installers can install medium density spray polyurethane foam insulation into buildings, ensuring professional and consistent installations. The Canadian Urethane Foam Contractors Association Inc. uses the SPF Quality Assurance Program to train, certify and license the installers.

The installer must work for a Licensed Contractor who is responsible to ensure all the requirements of the CAN/ULC S705.2 Installation Standard is met and that all safety and building code requires are adhered to.

What properties does an air barrier assembly require and does spray polyurethane foam provide them?

All medium density spray polyurethane foam is an air barrier material at the minimum installed thickness allowed of 12mm. An air barrier assembly must meet all the requirements outlined in the local Building Code. To do so, other materials must be used to "transition" to penetrations and to terminate. Normally a sheet membrane is installed at these transition points then sprayed over. With a declared and tested assembly, spray polyurethane foam provides all the requirements for an air barrier as required by Building Codes.

Is SPF recognized in the National Building Code?

SPFI is not only recognized as a thermal insulation, with the National Standards being referenced right in the Building Code but also SPF meets the requirements for a air barrier material and a air barrier system. SPF, in some cases can provide the Code required vapour barrier. SPF can provide thermal insulation, air barrier system, vapour barrier and drainage plane all in one application when used in cavity wall construction. SPF has one of the highest R-Values per inch of any insulating material available.

Does spray polyurethane foam "off-gas"?

All manufactured materials will off-gas to some extent. Some building products will off-gas in large qualities

Medium density spray polyurethane foam meeting the CAN/ULC S705.1 Material Standard is the only building product that is tested for occupant conditions. The industry has then taken an unprecedented stance and required that all manufacturers meet a maximum limit of 1/100 of the government allowable limit. Manufacturers have met this requirement in less than 24 hours.

Does spray polyurethane foam burn?

Spray polyurethane foam is an organic material and all organic materials burn. Medium density spray polyurethane foam contains a fire retardant so that the flame spread is less than 500 when tested in accordance with CAN/ULC S102 and specimens prepared in accordance with the requirements of the National Building Code.