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CAN/ULC 703:2025 Standard for Cellulose Fibre Insulation for Buildings
ULC CAN/ULC 703:2025 Standard for Cellulose Fibre Insulation for Buildings
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Description
PREFACE
This is the Third Edition of the Standard for Cellulose Fibre Insulation (CFI) for Buildings, CAN/ULC 703.
This Edition of the Standard has been formally approved by the ULC Standards Committee on Thermal Performance and Energy Use In the Built Environment.
This Standard has been developed in compliance with the requirements of Standards Council of Canada (SCC) for accreditation of a Standards Development Organization.
Only metric SI units of measurement are used in this Standard. If a value for measurement is followed by a value in other units in parentheses, the second value may be approximate. The first stated value is the requirement.
Annexes A and B, identified as Informative, are for informational purposes only.
In Canada, there are two official languages, English and French. All safety warnings must be in French and English. Attention is drawn to the possibility that some Canadian authorities may require additional markings and/or installation instructions to be in both official languages.
The Third Edition of this National Standard of Canada was based on and now supersedes, the Second Edition.
Attention is drawn to the possibility that some of the elements of this Canadian standard may be the subject of patent rights. ULC Standards shall not be held responsible for identifying any or all such patent rights.
Requests for interpretation of this Standard should be sent to ULC Standards. The requests should be worded in such a manner as to permit a “yes” or “no” answer based on the literal text of the requirement concerned.
This CAN/ULC 703 Standard is under continuous maintenance, whereby each revision is approved in compliance with the requirements of SCC for accreditation of a Standards Development Organization. In the event that no revisions are issued for a period of four years from the date of publication, action to revise, reaffirm, or withdraw the standard shall be initiated.
Comments or proposals for revisions on any part of the Standard may be submitted at any time. Proposals should be submitted via a Proposal Request in the On-Line Collaborative Standards Development System (CSDS) at https://csds.ul.com/canada.
This Standard is intended to be used for conformity assessment.
Scope
1.1 This Standard specifies requirements for treated 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
1.2 This document does not purport to address all the health and safety aspects associated with its use.
Anyone using this Standard has the responsibility to consult the appropriate authorities and to establish appropriate health and safety practices in conjunction with any existing applicable regulatory requirements prior to its use.
1.3 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.
PREFACE
This is the Third Edition of the Standard for Cellulose Fibre Insulation (CFI) for Buildings, CAN/ULC 703.
This Edition of the Standard has been formally approved by the ULC Standards Committee on Thermal Performance and Energy Use In the Built Environment.
This Standard has been developed in compliance with the requirements of Standards Council of Canada (SCC) for accreditation of a Standards Development Organization.
Only metric SI units of measurement are used in this Standard. If a value for measurement is followed by a value in other units in parentheses, the second value may be approximate. The first stated value is the requirement.
Annexes A and B, identified as Informative, are for informational purposes only.
In Canada, there are two official languages, English and French. All safety warnings must be in French and English. Attention is drawn to the possibility that some Canadian authorities may require additional markings and/or installation instructions to be in both official languages.
The Third Edition of this National Standard of Canada was based on and now supersedes, the Second Edition.
Attention is drawn to the possibility that some of the elements of this Canadian standard may be the subject of patent rights. ULC Standards shall not be held responsible for identifying any or all such patent rights.
Requests for interpretation of this Standard should be sent to ULC Standards. The requests should be worded in such a manner as to permit a “yes” or “no” answer based on the literal text of the requirement concerned.
This CAN/ULC 703 Standard is under continuous maintenance, whereby each revision is approved in compliance with the requirements of SCC for accreditation of a Standards Development Organization. In the event that no revisions are issued for a period of four years from the date of publication, action to revise, reaffirm, or withdraw the standard shall be initiated.
Comments or proposals for revisions on any part of the Standard may be submitted at any time. Proposals should be submitted via a Proposal Request in the On-Line Collaborative Standards Development System (CSDS) at https://csds.ul.com/canada.
This Standard is intended to be used for conformity assessment.
Scope
1.1 This Standard specifies requirements for treated 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
1.2 This document does not purport to address all the health and safety aspects associated with its use.
Anyone using this Standard has the responsibility to consult the appropriate authorities and to establish appropriate health and safety practices in conjunction with any existing applicable regulatory requirements prior to its use.
1.3 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.