Framed Shower Screen Waterstop Building Codes & Rules

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

Door Near Shower

Sealant

Fall to FW

Screed

1 : 60

Fall to FW

1:80

Sealant Bead

Sealer Membrane

Sealant / Adhesive

Screed

Adhesive

Bathroom Floor

Shower Screen Frame

Shower Floor

Adhesive

Membrane

1:80

Do Not Seal

Falls to Drainage

NCC 2022 Vol 1, F2D4 (2)

NCC 2022 HP, 10.2.12 (a)

1 : 80 to 1 : 50^{NCC 2022 Vol 1, F2D4 (2)NCC 2022 HP, 10.2.12 (a)}

NCC 2022 Vol 1, F2D4 (2)

NCC 2022 HP, 10.2.12 (a)

1 : 80 to 1 : 50^{NCC 2022 Vol 1, F2D4 (2)NCC 2022 HP, 10.2.12 (a)}

Floor System

AS 3740:2021, 4.8.4 (a)

≥ 5^{AS 3740:2021, 4.8.4 (a)}

AS 3740:2021, 4.8.4 (a)

≥ 5^{AS 3740:2021, 4.8.4 (a)}

Shower Screen

Door to shed water into the shower

Preventing Water Damage

NCC 2022 V1

Door to shed water into the shower

Floor Tiles

P3 or R10 Slip Rating^[1]
Falls to FW & transverse cuts to minimise ponding

Slip RATING

NCC 2022 V1

All Building Classes

NCC 2022 D1P2

May 2023

Tile TOLERANCE

NCC 2022 V3

All Building Classes

NCC 2022 F2D2, S26C3 [2019 F1.7]

NCC 2022 HP10.2.12

May 2023

NCC 2022 Vol 1, F2D4 (2)

AS 3740:2021, 2.3.1

AS 3740:2021, 2.3.5

NSW 2017 Guide to Standards & Tolerances, 12.6

AS 3958.1:2007, 5.4.6 (c)

AS 3958.1:2007, 5.4.6 (a)

NCC 2022 HP, 10.2.12

NCC 2022 Vol 1, S26C1 (a)

NCC 2022 HP, 10.2.1

Building elements in Wet Areas to be Waterproof or Water Resistant to NCC Specification 26, Part 10.2^{NCC 2022 Vol 1, F2D4 (2)AS 3740:2021, 2.3.1}
Falls to Substrate
≥ 1 : 100 typically^{AS 3740:2021, 2.3.5}
≥ 1 : 80 if whole room is an Unenclosed Shower^{NSW 2017 Guide to Standards & Tolerances, 12.6}
Falls to Floor Finish
≥ 1 : 80 to 1 : 50^{AS 3958.1:2007, 5.4.6 (c)AS 3958.1:2007, 5.4.6 (a)}
Ponding
< 1.5mm deep surface tension after 15 minutes
Installation tolerance
Standards & Tolerance Guides (Various States)^{NCC 2022 HP, 10.2.12}
Grout Joints^{NCC 2022 Vol 1, S26C1 (a)}
3 to 6mm floor grout joints
1 to 2mm wall grout joints
Lippage for Joints & Flatness^{NCC 2022 HP, 10.2.1}
≤ 1mm lippage for joints ≤ 3mm
≤ 2mm lippage for joints ≥ 3mm
± 4mm in 2m flatness tolerance

HB 198:2014, 5.1

P3 or R10 Slip Rating^{HB 198:2014, 5.1}
Falls to FW & transverse cuts to minimise ponding

Substrate

Smooth, clean, dry & dust free surface^[1]
In-situ falls to drainage preferred

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 V4

All Building Classes

NCC 2022 F2D2, S26C3, & HP10.2.9 [2019 F1.7]

May 2023

AS 3740:2021, 4.4.1

Building elements in Wet Areas to be Waterproof or Water Resistant to the NCC
All surfaces to be prepared for Waterproofing System adhesion^{AS 3740:2021, 4.4.1}
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

Substrate PREPARATION

NCC 2022 V1

AS 3740:2021, 4.4.1

Smooth, clean, dry & dust free surface^{AS 3740:2021, 4.4.1}
In-situ falls to drainage preferred

Waterstop Angle

≥ 5mm^[1] projection above FFL
Adhere & / or mechanically fix to substrate^[2][3]
Sealant beads & fillets to protect membrane^[4]

Showers

NCC 2022 V1

Separate from main area to AS 3740 by either
Hob, or
≥ 15mm Setdown, or
≥ 5mm Upstand Angle under Framed Screen
≥ 1 : 80 fall required, Transverse cut large format Tiles

Waterstop RULES

NCC 2022 V3

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)

NCC 2022 HP, 10.2.1

NCC 2022 Vol 1, S26C1 (a)

Building elements in Wet Areas to be Waterproof or Water Resistant to NCC Specification 26, Part 10.2^{AS 3740:2021, 3.3.1 (a)AS 3740:2021, 3.3.3 (a) (iv)}
Materials
Stainless Steel, Aluminium^{AS 3740:2021, 4.9}
Vinyl Sheet Flooring, welded & sealed^{AS 3740:2021, 3.3.3 (b) (ii)AS 3740:2021, 3.3.1 (c)NCC 2022 HP, 10.2.1}
Door openings & protection at Floor level require waterproofing for a watertight seal^{NCC 2022 Vol 1, S26C1 (a)}
Use adhesive or mechanically fix to Substrate
Sealant continuous across Door Opening
Sealant beads & bond breaking fillets to protect Membrane

Water Stop INSTALLATION

NCC 2022 V1

Showers

NCC 2022 V1

AS 3740:2021, 4.6.1

AS 3740:2021, 4.8.1

AS 3740:2021, A.5.3

AS 3740:2021, 4.8.4 (a)

≥ 5mm^{AS 3740:2021, 4.6.1} projection above FFL
Adhere & / or mechanically fix to substrate^{AS 3740:2021, 4.8.1AS 3740:2021, A.5.3}
Sealant beads & fillets to protect membrane^{AS 3740:2021, 4.8.4 (a)}

Screed

Bonded 15mm to 40mm thk^[1]
Unbonded ≥ 40mm thk^[2]

Screed RULES

NCC 2022 V1

All Building Classes

NCC 2022 F2D2 & S26C3

May 2023

AS 3958.1:2007, A.2.3 (a)

AS 3958.1:2007, A.2.3 (b)

AS 3958.1:2007, 3.3.1.1 (b) (i)

AS 3958.1:2007, 3.3.2.2 (b) (i)

NCC 2022 Vol 1, S26C3 (1)

NCC 2022 Vol 1, F2D2

NCC 2022 F2D2 & S26C3 [2019 F1.7]
Building elements in Wet Areas to be Waterproof or Water Resistant to NCC Specification 26 ^{AS 3958.1:2007, A.2.3 (a)AS 3958.1:2007, A.2.3 (b)}
Bonded screeds
15 to 40mm thk^{AS 3958.1:2007, 3.3.1.1 (b) (i)}
Recommended for slab on ground, or
Cured structural slabs ≤ 1/360 deflection of span^{AS 3958.1:2007, 3.3.2.2 (b) (i)}
Unbonded screeds
≥ 40mm thk reinforced with slip sheet^{NCC 2022 Vol 1, S26C3 (1)}
Timber framed floors ≤ 1/360 deflection of span^{NCC 2022 Vol 1, F2D2}

AS 3958.1:2007, A.2.3 (a)

AS 3958.1:2007, A.2.3 (b)

Bonded 15mm to 40mm thk^{AS 3958.1:2007, A.2.3 (a)}
Unbonded ≥ 40mm thk^{AS 3958.1:2007, A.2.3 (b)}

Screed

Bonded 15mm to 40mm thk^[1]
Unbonded ≥ 40mm thk^[2]

Screed RULES

NCC 2022 V1

All Building Classes

NCC 2022 F2D2 & S26C3

May 2023

AS 3958.1:2007, A.2.3 (a)

AS 3958.1:2007, A.2.3 (b)

AS 3958.1:2007, 3.3.1.1 (b) (i)

AS 3958.1:2007, 3.3.2.2 (b) (i)

NCC 2022 Vol 1, S26C3 (1)

NCC 2022 Vol 1, F2D2

NCC 2022 F2D2 & S26C3 [2019 F1.7]
Building elements in Wet Areas to be Waterproof or Water Resistant to NCC Specification 26 ^{AS 3958.1:2007, A.2.3 (a)AS 3958.1:2007, A.2.3 (b)}
Bonded screeds
15 to 40mm thk^{AS 3958.1:2007, 3.3.1.1 (b) (i)}
Recommended for slab on ground, or
Cured structural slabs ≤ 1/360 deflection of span^{AS 3958.1:2007, 3.3.2.2 (b) (i)}
Unbonded screeds
≥ 40mm thk reinforced with slip sheet^{NCC 2022 Vol 1, S26C3 (1)}
Timber framed floors ≤ 1/360 deflection of span^{NCC 2022 Vol 1, F2D2}

AS 3958.1:2007, A.2.3 (a)

AS 3958.1:2007, A.2.3 (b)

Bonded 15mm to 40mm thk^{AS 3958.1:2007, A.2.3 (a)}
Unbonded ≥ 40mm thk^{AS 3958.1:2007, A.2.3 (b)}