External frame wrap, also known as sarking, is a protective layer installed on the external walls of a building's timber frame. It acts as a barrier against moisture, wind, and dust, preventing damage. It improves thermal performance, reduces heat loss, and enhances energy efficiency.
It also provides sound insulation and helps maintain a comfortable indoor environment. By creating a sealed and watertight layer, it protects the structure, prevents issues like rot and mold, and promotes a healthy living or working environment.

Regulations in the Building Code of Australia (BCA) stipulates the Acoustic Insulation Standards that builders and developers need to comply with for all Residential and Commercial buildings in Australia.
Your BASIX/Nathers report may mandate Thermal/Moisture protection requirements for some of your project specifically.
Some of the additional Sarking you would need to do are:
- External Frame Wrap
- Ceiling Blanket
- Subfloor Moisture protection
To comply with the above BASIX/Nathers requirements, you will need to undertake some or all of the above items.
In addition for Custom Homes, we can provide consultancy for effective thermal/moisture control solutions
Our team will help you to understand your BASIX/Nathers requirements and translate that to the appropriate solutions to be used for each individual project.
Contact us to get your projects completed on time while complying with your sarking requirements.