Cavity Slider Waterstop Building Codes & Rules
- Waterstop Angle Tools™ simplifies the National Construction Code (NCC) with interactive graphics, including deemed to comply & best practices.
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Top of Membrane
M
M
Wall Lining
- Adhere to cavity doorset
Tools™ Best Practice
Split JambTools™ Best Practice
- Never embed in Tiles
- Prime cut ends
- Seal under ends to Tiles
Tools™ Best Practice
Waterstop Angle at CavityTools™ Best Practice
- 2mm gap to Jamb to allow for movement
- Mitre cut bottom web & fold 90° to prevent leak into cavity
- File smooth all edges
- Sealant to all edges & junctions
Finishes
NCC 2022 HP, 10.2.2 (1) (c)
AS 3740:2021, 4.11.2 (b)
Cavity Sliding Door
Sealant / Adhesive
Split Jamb
Sealant bead
Sealant Joint
Split Jamb
Finished Floor Level
Membrane
Manufacturer's Requirement
Industry Recommendation
PrimerIndustry Recommendation
- Compatible with both Substrate Material & WPM System
- Non-porous Angle
- Porous Floor
Tools™ Best Practice
Mechanical FixingsTools™ Best Practice
- 200mm centres
NCC 2022 HP, 10.2.24 (a) (ii)
AS 3740:2021, 4.9.1 (c) (iii)
NCC 2022 HP, 10.2.24 (c)
AS 3740:2021, 4.9.1 (a) (i)
Top of Waterstop ≥ FFLNCC 2022 HP, 10.2.24 (c)AS 3740:2021, 4.9.1 (a) (i)
Sealant over anchor screws
Industry Recommendation
Water CheckIndustry Recommendation
- ≤ 3mm prevents spilt water / unintentional overflows discharging over angle
NCC 2022 HP, 10.2.24
Industry Recommendation
Industry Recommendation
Waterstop Angle
- Preferred alignment to centre of Door LeafNCC 2022 HP, 10.2.24
- Return angle at Jamb to cover Frame or messy jointIndustry Recommendation
- Sealed to FloorIndustry Recommendation
Internal Waterproofing Overview
Waterstop
- ≥ 40mm set down[1]
- ≥ 25mm Screed depth to be maintained when calculating Falls throughout the wet area[2]
- Sealant beads & fillets to protect Membrane[3]
Waterstop RULES
NCC 2022 V2
All Building Classes
NCC 2022 F2D2, S26C3, & Part 10.2.11 to 13 [2019 F1.7]
May 2023
AS 3740:2021, 3.3.1 (a)
AS 3740:2021, 3.3.3 (a) (iv)
AS 3740:2021, 4.9
AS 3740:2021, 3.3.3 (b) (ii)
AS 3740:2021, 3.3.1 (c)
- Building elements in Wet Areas to be Waterproof or Water Resistant to NCC Specification 26, Part 10.2, & AS 3740
- Materials
- Stainless Steel, AluminiumAS 3740:2021, 3.3.1 (a)
- Vinyl Sheet Flooring, welded & sealedAS 3740:2021, 3.3.3 (a) (iv)AS 3740:2021, 4.9AS 3740:2021, 3.3.3 (b) (ii)
- Door openings & protection at Floor level require waterproofing for a watertight sealAS 3740:2021, 3.3.1 (c)
- Use adhesive or mechanically fix to Substrate
- Sealant continuous across Door Opening
- Sealant beads & bond breaking fillets to protect Membrane
Step up PROS & CONS
NCC 2022 V1
Water Stop INSTALLATION
NCC 2022 V1
NCC 2022 HP, 10.2.2 (1) (c)
AS 3958.1:2007, 3.3.3.1 (e)
AS 3740:2021, 4.9.1 (d) (ii)
- ≥ 40mm set downNCC 2022 HP, 10.2.2 (1) (c)
- ≥ 25mm Screed depth to be maintained when calculating Falls throughout the wet areaAS 3958.1:2007, 3.3.3.1 (e)
- Sealant beads & fillets to protect MembraneAS 3740:2021, 4.9.1 (d) (ii)
Substrate
- CSP 2 -5 (Concrete Surface Profile)[1]
- Smooth Wood Float equivalent finish
- Smooth & clean before waterproofing[2]
- No ribs, ridges or over-trowelling
Substrate MATERIALS
NCC 2022 V3
All Building Classes
NCC 2022 F2D2, S26C3, & HP10.2.24 [2019 F1.7, 3.8.1]
May 2023
AS 3740:2021, 3.3.2 (a)
AS 3740:2021, 3.3.2 (b)
NCC 2022 HP, 10.2.1
NCC 2022 Vol 1, F2D2
NCC 2022 Vol 1, S26C3 (1)
- Building elements in Wet Areas to be Waterproof or Water Resistant to the NCCAS 3740:2021, 3.3.2 (a)AS 3740:2021, 3.3.2 (b)NCC 2022 HP, 10.2.1
- Water-resistant materialsNCC 2022 Vol 1, F2D2NCC 2022 Vol 1, S26C3 (1)
- Concrete
- Fibre cement
- Compatible with the waterproofing membrane system
- Materials shall not to deteriorate when exposed to moisture
Substrate PREPARATION
NCC 2022 V1
Substrate PREPARATION
NCC 2022 V6
All Building Classes
NCC 2022 F2D2, S26C3, & HP10.2.9 [2019 F1.7]
May 2023
AS 3740:2021, 4.4.1
NCC 2022 Vol 1, F2D2
NCC 2022 Vol 1, S26C3 (1)
NCC 2022 HP, 10.2.9
- Building elements in Wet Areas to be Waterproof or Water Resistant to the NCCAS 3740:2021, 4.4.1NCC 2022 Vol 1, F2D2NCC 2022 Vol 1, S26C3 (1)
- All surfaces to be prepared for Waterproofing System adhesionNCC 2022 HP, 10.2.9
- Smooth, dust-free, clean & dry surface
- Fill voids
- Grind smooth any protrusions
- Free of formwork deformity
- Prime substrate to prohibit pin-holing during the membrane curing process
- Moisture test & apply primer as per Manufacturer's Recommendations
AS 3740:2021, 4.4.1
AS 3740:2021, 4.4.1
- CSP 2 -5 (Concrete Surface Profile)AS 3740:2021, 4.4.1
- Smooth Wood Float equivalent finish
- Smooth & clean before waterproofingAS 3740:2021, 4.4.1
- No ribs, ridges or over-trowelling
Junctions
- ≥ 12mm[1] Bond breaker Fillet to all Class III Membrane Junctions
Junction RULES
NCC 2022 V4
All Building Classes
NCC 2022 F2D2, S26C3, & Part 10.2.24 [2019 F1.7, 3.8.1]
May 2023
AS 3740:2021, 4.10
AS 3740:2021, 4.13.2.2
- NCC 2022 F2D2, S26C3, & Part 10.2.24 [2019 F1.7, 3.8.1]
- Building elements in Wet Areas to be Waterproof or Water Resistant to NCC Specification 26, NCC Part 10.2, & AS 3740
- Backing rod, tape, or sealant should be installed when the membrane is bonded to the substrate
- Type depending on membrane flexibility classAS 3740:2021, 4.10
Class I Membrane (low extensibility)
- Resin systems, or water-based epoxies membranes
- ≥ 6mm ØAS 3740:2021, 4.13.2.2 backing rod should be installed to allow the membranes to flex instead of stretch, with a continuous tape between backing rod and membrane to keep it in place
Class II Membrane (medium extensibility)
- Acrylic membranes, bitumen-based emulsions or mastics membranes
- Tape to allow the membrane to stretch
Class III Membrane (high extensibility)
- Polyurethane, PVC, rubber, or EPDM membrane
- Fillet or sealant to allow even thickness to the membrane
AS 3740:2021, 4.10
- ≥ 12mmAS 3740:2021, 4.10 Bond breaker Fillet to all Class III Membrane Junctions
Wall Linings
- 6mm Fibre-cement for typical Tile or Paint finish
- 8mm gap to Structural Floor
Wall Lining
NCC 2022 V2
- 6mm Fibre-cement for typical Tile or Paint finish
- 8mm gap to Structural Floor
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