NCC|BCA 2019 training

Builders, would you like a cost effective training session at your office to update your team on changes to BCA 2019 Volume 2? CPD points applicable. Sessions can be tailored to your type of business and individual questions answered.

We can update you on;

  • General requirements & paths to compliance
  • Changes from 2016 to 2019
  • Condensation Management
  • Energy Efficiency (BASIX)

Contact us on the details or email link below, let us know what you are after and we can deliver specific training for your business!

Permeable Building Wrap, NCC 2019, Condensation Management

Are you a house builder or energy rater?

BCA 2019 Volume Two (Class 1 houses), Clause 3.8.7.2 requires that if a pliable building membrane is installed (building wall wrap) it must be a vapour permeable membrane for Climate Zones 6, 7 & 8.

In Sydney imagine a line from Berowra, Hornsby, Castle Hill, Parramatta, Milperra, Lucas Heights & Heathcote to the west of this is Climate Zone 6, wall wraps must be permeable to reduce risk of condensation occurring.

  • Standard sarking is not permeable at  0.01 μg/N.s (poor)
  • AS 4200.1 minimum requirement 0.14 μg/N.s (low permeability)
  • James Hardie Wall Wrap 2.2 μg/N.s (very good)
  • Proctor RW 4.5 μg/N.s (excellent)

James Hardie wall wrap is also a reflective barrier which suits a temperate climate like Sydney.

Proctor RW is not reflective which would be a better choice in a colder climate like Blue Mountains or Southern Highlands.