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About This Item


Full Description

This Standard specifies requirements for treated wood-based cellulose fibre intended for use as thermal insulation (Cellulose Fibre Insulation, CFI) in new and existing buildings within the temperature range of -60 °C to 90 °C.

This Standard describes general requirements for the material and additional requirements specific to the types of CFI. The types are specified as Type 1 and Type 2.

The methods used in this Standard to measure and describe the properties of materials, products or assemblies in response to heat and flame under controlled laboratory conditions do not describe or appraise the fire hazard or fire risk of materials and products under actual fire conditions. Results of these tests are meant to be used as elements in a fire risk assessment that takes into account all of the factors that are pertinent to an assessment of the fire hazard of a particular end use.

Document History

  1. ULC 703


    Standard for Cellulose Fibre Insulation (CFI) for Buildings (CAN/ULC S703)

    • Most Recent
  2. CAN/ULC S703-01

    Standard for Cellulose Fibre Insulation (CFI) for Buildings, Includes Amendment 1

    • Historical Version