Sarking duty ratings: what to check
When comparing sarking duty ratings, record how the product will be handled and supported during the build. Ask for the current datasheet so duty, installation conditions and moisture-related properties are considered together.
Define the selection
Use a drawing of the proposed layer sequence when asking technical questions. Identify the exact membrane and compatible accessories in the order, and refer unresolved moisture or installation details to the responsible designer or manufacturer.
Check before comparing products
- Duty classification and support spacing.
- Handling and exposure during construction.
- Laps, tapes and penetrations.
Build a material list that can be checked
Record the selected product name or SKU, each required size and the quantity for each work area. Use the actual listed coverage when estimating packs or boards, and confirm the allowance with your installer. Include compatible accessories and keep a copy of the agreed selections.
Browse related building materials · Estimate material quantities · Ask MY META about your material list. Collection and freight arrangements must be confirmed separately.
Technical reference
Further reading: YourHome condensation guidance. Check the current Australian product guide and your project specification before ordering or installation.