Polyethylene Sheet for use in Building Construction – Material Specification

Note: The title, scope and project need for this NOI (originally published February 23, 2021) was updated by the responsible SDO on November 9, 2021.

This National Standard of Canada establishes a classification system and specifies physical property requirements and test methods to determine the characteristics for each class of polyethylene sheet used in building construction as a vapour barrier, air barrier, and/or moisture barrier, whether installed on a building site or in a prefabrication (manufacturing) facility.

The test methods listed in this document are used to determine the values for the material properties. These values are intended for use in specifications, product evaluations and quality control. They are not intended to predict in situ end-use product performance.

The polyethylene sheet is not intended to be used where the continuous service temperature of the substrate or ambient is outside the range of -60 to + 65 °C.

Values used in this standard are provided in units from the International System of Units (SI units). Imperial equivalents may be shown in brackets.

Applications and installation requirements are not covered in the normative part of this document, there are informative annexes which provide guidance.

The testing and evaluation of a product against this standard may require the use of materials and/or equipment that could be hazardous. This standard does not purport to address all the 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 applicable regulatory requirements prior to its use.