Cavity Slider Waterstop Building Codes & Rules

- Waterstop Angle Tools™ simplifies the National Construction Code (NCC) with interactive graphics, including deemed to comply & best practices.

Top of Membrane

Industry Recommendation

Wall Lining^{Industry Recommendation}

Adhere to cavity doorset

Tools™ Best Practice

Split Jamb^{Tools™ Best Practice}

Never embed in Tiles
Prime cut ends
Seal under ends to Tiles

Tools™ Best Practice

Waterstop Angle at Cavity^{Tools™ 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

Show Finishes

NCC 2022 HP, 10.2.2 (1) (c)

AS 3740:2021, 4.11.2 (b)

≥ 40^{NCC 2022 HP, 10.2.2 (1) (c)AS 3740:2021, 4.11.2 (b)}

Cavity Sliding Door

Split Jamb

Sealant Joint

Split Jamb

Finished Floor Level

Show Membrane

Manufacturer's Requirement

8^{Manufacturer's Requirement}

Industry Recommendation

Primer^{Industry Recommendation}

Compatible with both Substrate Material & WPM System
Non-porous Angle
Porous Floor

Tools™ Best Practice

Mechanical Fixings^{Tools™ Best Practice}

200mm centres

NCC 2022 HP, 10.2.24 (a) (ii)

AS 3740:2021, 4.9.1 (c) (iii)

≥ 50^{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 ≥ FFL^{NCC 2022 HP, 10.2.24 (c)AS 3740:2021, 4.9.1 (a) (i)}

Sealant over anchor screws

Industry Recommendation

Water Check^{Industry Recommendation}

≤ 3mm prevents spilt water / unintentional overflows discharging over angle

Internal Waterproofing Overview

NCC 2022 HP, 10.2.24

Industry Recommendation

Waterstop Angle

Preferred alignment to centre of Door Leaf^{NCC 2022 HP, 10.2.24}
Return angle at Jamb to cover Frame or messy joint^{Industry Recommendation}
Sealed to Floor^{Industry Recommendation}

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 class^{AS 3740:2021, 4.10}

Class I Membrane (low extensibility)

Resin systems, or water-based epoxies membranes
≥ 6mm Ø^{AS 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

≥ 12mm^{AS 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

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, Aluminium^{AS 3740:2021, 3.3.1 (a)}
Vinyl Sheet Flooring, welded & sealed^{AS 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 seal^{AS 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 down^{NCC 2022 HP, 10.2.2 (1) (c)}
≥ 25mm Screed depth to be maintained when calculating Falls throughout the wet area^{AS 3958.1:2007, 3.3.3.1 (e)}
Sealant beads & fillets to protect Membrane^{AS 3740:2021, 4.9.1 (d) (ii)}

AS 3740:2021, 4.10

Sealant / Adhesive^{AS 3740:2021, 4.10}

AS 3740:2021, 4.10

Sealant Bead^{AS 3740:2021, 4.10}

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 NCC^{AS 3740:2021, 3.3.2 (a)AS 3740:2021, 3.3.2 (b)NCC 2022 HP, 10.2.1}
Water-resistant materials^{NCC 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 NCC^{AS 3740:2021, 4.4.1NCC 2022 Vol 1, F2D2NCC 2022 Vol 1, S26C3 (1)}
All surfaces to be prepared for Waterproofing System adhesion^{NCC 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

CSP 2 -5 (Concrete Surface Profile)^{AS 3740:2021, 4.4.1}
Smooth Wood Float equivalent finish
Smooth & clean before waterproofing^{AS 3740:2021, 4.4.1}
No ribs, ridges or over-trowelling