Laying Membrane Building Codes & Rules
- Laying Membrane Tools™ simplifies the National Construction Code (NCC) with interactive graphics, including deemed to comply & best practices.
9
8
Multiple Membranes
6
5
Side Lap
End Lap
staggered
3
2
1
7
4
Membrane
Substrate
Fall
Fall
End Lap
Single Membrane or
Highest Point
Planning
- Edge details must be carefully considered
- Pads, penetrations & anchors installed prior to WPM
Preparation
NCC 2022 V1
- Edge details must be carefully considered
- Pads, penetrations & anchors installed prior to WPM
Lowest Point
End Lap
staggered
Laying Membrane
- Placement from the lowest point on the longitudinal direction of fall[1]
- Minimum overlap required
- Ensure full curing
Membrane OVERLAP
NCC 2022 V3
All Building Classes
NCC 2022 F1D5, H2D8, & HP10.2 [2019 F1.4, 3.8.1.2, 3.8.1.3]
May 2023
AS 4654.2:2012, 2.6.1
NCC 2022 Vol 1, F1D5
NCC 2022 Vol 2, H2D8
NCC 2022 HP, 10.2.1
- Building elements in Wet Areas to be Waterproof or Water Resistant to the NCCAS 4654.2:2012, 2.6.1NCC 2022 Vol 1, F1D5NCC 2022 Vol 2, H2D8
- Laying of MembraneNCC 2022 HP, 10.2.1
- The placement should begin at the lowest point following the longitudinal direction of the fall
- Junction treatment depending on the system
- Ensure to follow the minimum overlap required as per table below
Application BEST PRACTICE
NCC 2022 V1
AS 4654.2:2012, 2.6.1
- Placement from the lowest point on the longitudinal direction of fallAS 4654.2:2012, 2.6.1
- Minimum overlap required
- Ensure full curing
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