AS/NZS 4201.2:1994 (R2020) PDF Download

AS/NZS 4201.2:1994 (R2020) is a standard that focuses on evaluating the resistance to wet delamination of pliable building membranes and underlays. The purpose of this standard is to determine the ability of these materials to withstand delamination in hot and humid conditions. Delamination refers to the separation of layers within a material, which can compromise its integrity and performance.

The test method described in this standard involves subjecting the pliable building membrane or underlay to a specified combination of heat and moisture. The material is typically exposed to elevated temperatures and high humidity levels, simulating the conditions that it may encounter in real-world applications. The duration of the test is also specified within the standard.

The result of this test provides a measure of the material's resistance to delamination under wet conditions. This is an important factor to consider, as building materials must be able to maintain their structural integrity and performance even when exposed to moisture or humidity. By assessing the resistance to wet delamination, this standard helps ensure that pliable building membranes and underlays meet the necessary quality and durability requirements for their intended use.