Stone Threshold Building Codes & Rules
- Stone Threshold Tools™ simplifies the National Construction Code (NCC) with interactive graphics, including deemed to comply & best practices.
M
Screed
M
Top of Tile
Floor Tile
Adhesive
Wall finish (tiles)
Cavity Sliding Door
M
Sealant / Adhesive
Wall Lining
Sealant bead
Anti-fungal Sealant
Wet area level
Sealer Membrane (Stone Finish only)
Stone Threshold
Bedding
Sealant
Stone Threshold - RCC Requirement
- Sized to suit Threshold
- Set into Door Rebate & extend across Door Opening as per site specific requirements
Sealant
Floor finish
Fall to Drain
Top of Membrane
Topping if Required
Jambs & Architraves
- Never embed in Tiles
- Prime cut ends
- Seal under ends to Tiles
Substrate
Fall
NCC 2022 Vol 1, F2D4 (2)
NCC 2022 HP, 10.2.12 (a)
1 : 80 to 1 : 50NCC 2022 Vol 1, F2D4 (2)NCC 2022 HP, 10.2.12 (a)
AS 3740:2021, 4.9.2 (b)
Membrane
AS 1428.1:2009, 7.2 (a)
AS 3740:2021, 2.3.1
AS 3740:2021, 2.3.5
≥ 1 : 100AS 3740:2021, 2.3.1 / 1 : 80AS 3740:2021, 2.3.5
Stone Threshold - Taylor Requirement
- Sized to suit Threshold
- Set into Door Rebate & extend across Door Opening as per site specific requirements
Stone Threshold
- Sized to suit Threshold
- Set into Door Rebate & extend across Door Opening as per site specific requirements
3
3 - 6
3 - 6
AS 3740:2021, 4.9.1 (c) (ii)
Sealant
3 - 6
3
Split Jamb
Finished floor level
Foam Expansion Joint
Typical Threshold
Split Jamb
Membrane
M
M
M
Sealant over anchor screws
Waterstop Angle
- Preferred alignment to center of Door Leaf
Swing Door
Waterstop Angle
Membrane
- Turn the Membrane down into the Leak Control Flange[1]
- Compatible to suit Substrate & bedding / finishes[2]
- Test & protect from damage[3]
Membrane AUDIT
NCC 2022 V2
All Building Classes
NCC 2022 F2D2, S26C3, 10.2.26 [2019 F1.7]
May 2023
AS 3740:2021, 4.5.4 (a)
AS 3740:2021, 4.5.4 (b)
AS 3740:2021, 4.5.4 (c)
AS 3740:2021, 4.5.2
- Building elements in Wet Areas to be Waterproof or Water Resistant to NCC Specification 26, Part 10.2, & AS 3740
- Curing & protectionAS 3740:2021, 4.5.4 (a)
- Fully cured to manufacturers' recommendations
- Protect from physical & chemical damage until covered by finishes
- Flood testingAS 3740:2021, 4.5.4 (b)
- If any leaks occur, these shall be repaired following the system design & retested
- Electronic leak detectionAS 3740:2021, 4.5.4 (c)
- If any discontinuities occur, these shall be repaired & retested only on the repaired areas
- Seam probe testingAS 3740:2021, 4.5.2
- If any seam failures occur, these shall be repaired & retested
Membrane Curing & Inspection RULES
NCC 2022 V2
All Building Classes
NCC 2022 F2D2, S26C3, 10.2.28 [2019 F1.7]
May 2023
AS 3740:2021, 4.5.2
AS 3740:2021, 4.5.3
- Building elements in Wet Areas to be Waterproof or Water Resistant to NCC Specification 26, Part 10.2, & AS 3740
- Fully cure prior to any testingAS 3740:2021, 4.5.2
- Visual inspection conducted prior to application of overlay finishesAS 3740:2021, 4.5.3
AS 3740:2021, 4.3.1 (a)
AS 3740:2021, 3.2
AS 3740:2021, 4.17 (b)
- Turn the Membrane down into the Leak Control FlangeAS 3740:2021, 4.3.1 (a)
- Compatible to suit Substrate & bedding / finishesAS 3740:2021, 3.2
- Test & protect from damageAS 3740:2021, 4.17 (b)
Membrane Substrate
- ≥ 1 : 100 fall required towards the Floor Waste[1]
- ≥ 1 : 80 fall required to entire room where Shower unscreened[2]
- Form falls in Structural Floor or Screed[3]
- Smooth, clean, dry & dust free surface[4]
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 adhesionAS 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, 2.3
AS 3740:2021, 4.4.1
AS 3740:2021, 2.3.1
AS 3740:2021, 2.3.5
- ≥ 1 : 100 fall required towards the Floor WasteAS 3740:2021, 2.3
- ≥ 1 : 80 fall required to entire room where Shower unscreenedAS 3740:2021, 4.4.1
- Form falls in Structural Floor or ScreedAS 3740:2021, 2.3.1
- Smooth, clean, dry & dust free surfaceAS 3740:2021, 2.3.5
Floor Finish
- Tile selection
- P3 or R10 Slip Rating[1]
- Movement Joints[2]
- ≤ 4.5m CTS
- Align with Structural movement or Control Joints
- Above load bearing Beams or Walls
Tile TOLERANCE
NCC 2022 V2
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
- Building elements in Wet Areas to be Waterproof or Water Resistant to NCC Specification 26, Part 10.2, & AS 3740
- Falls to Substrate
- ≥ 1 : 100 typicallyNCC 2022 Vol 1, F2D4 (2)
- ≥ 1 : 80 if whole room is an Unenclosed ShowerAS 3740:2021, 2.3.1
- Falls to Floor Finish
- ≥ 1 : 80 to 1 : 50AS 3740:2021, 2.3.5NSW 2017 Guide to Standards & Tolerances, 12.6
- Ponding
- < 1.5mm deep surface tension after 15 minutes
- Installation tolerance
- Standards & Tolerance Guides (Various States)AS 3958.1:2007, 5.4.6 (c)
- Grout JointsAS 3958.1:2007, 5.4.6 (a)
- 3 to 6mm floor grout joints
- 1 to 2mm wall grout joints
- Lippage for Joints & FlatnessNCC 2022 HP, 10.2.12
- ≤ 1mm lippage for joints ≤ 3mm
- ≤ 2mm lippage for joints ≥ 3mm
- ± 4mm in 2m flatness tolerance
HB 198:2014, 5.1
AS 3958.1:2007, 5.4.5.2
- Tile selection
- P3 or R10 Slip RatingHB 198:2014, 5.1
- Movement JointsAS 3958.1:2007, 5.4.5.2
- ≤ 4.5m CTS
- Align with Structural movement or Control Joints
- Above load bearing Beams or Walls
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