ASNZS 4200.1:2017 - Pliable building membranes and underlay testing (Part 1: Materials)

This includes for the construction of external walls as specified in Section F8D3. ASNZS 4200.1 classifies pliable membrane by material property. Suitable membranes may then be selected by duty classification. The duty classes range from Extra Heavy to Extra Light as determined by physical performance parameters of tensile strength, edge tear resistance and burst strength.

Depending upon the climate zone, a minimum level of vapour permeance is required. Class 3 and class 4 vapour control membranes, as determined by laboratory testing, meet the requirements of of Section F8D3. Pliable membranes also play a role in the determination of energy efficiency of walls. The inner surface emittance of a central reflective membrane is factored into the calculation of R-values in accordance with ASNZS 4859.2 .

Surface infra-red emittance is measured and classified as IR reflective, IR Semi-reflective or IR Non-reflective by ASNZS 4200.1.

How can we help?

- AWTA Product testing is NATA accredited for most tests to measure material properties and to determine the resultant classifications based on performance.

- The laboratory also offers testing to determine the Optional Material Classifications as tabled by Appendix A of ASNZS 4200.1

- This include resistance to UV exposure, surface corrosion of low emittance surfaces, heat shrinkage and the surface water absorbency classification.

- Whilst optional, these additional material classifications offer a marketing edge where products classified accordingly add value to an installation.

Contact us:

If you would like further information on pliable building membranes and underlays, Part 1 testing or our testing services in general - please contact us as per below: 

Phone: +61 (03) 9371 2400   OR    Email:[email protected]