Baths - Insert Type in Framing Building Codes & Rules


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


Ventilation


  • 13mm Stainless Steel Door Bolt Escutcheon


Ventilation


NCC 2022 V1


  • 13mm Stainless Steel Door Bolt Escutcheon

Shower Corner Angle

Substrate


  • Form falls in Structural Floor or Screed
  • Smooth, clean, dry & dust free surface


Substrate FALLS


NCC 2022 V1


All Building Classes


NCC 2022 F2D2, S26C3, 10.2.9, & 10.2.12 [2019 F1.7]


May 2023



Substrate PREPARATION


NCC 2022 V1


Substrate PREPARATION


NCC 2022 V1


All Building Classes


NCC 2022 F2D2, S26C3, & 10.2.9 [2019 F1.7]


May 2023



  • Form falls in Structural Floor or Screed
  • Smooth, clean, dry & dust free surface

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

Screed


  • Bonded 15mm to 40mm thick
  • Unbonded ≥ 40mm thick


Screed RULES


NCC 2022 V3


All Building Classes


AS 3958.1 2007, 3.3.3


May 2023



  • Bonded 15mm to 40mm thick
  • Unbonded ≥ 40mm thick

75 to 125

150

Fall

Sealant

300 cts

M

100

Packing

Sealant

Anti-fungal Sealant

Bathroom Floor

DPC

Membrane

≥ 1:100

Neoprene Packer

Screed

M

Adhesive

Fillet

Screed

Sealant

Fall

- copy

5 to 8

M

Bath Rim

M

M

≥ 150

Adhesive

Substrate

Fall

Adhesive

Villaboard

12 Gal Self Tap

Membrane

Membrane

Membrane

- copy

Bath or Spa

Support

Membrane

- copy - copy

M

Bath Frame

Membrane

Bath

Frame

≥ 150

Wall Lining

Villaboard

Sealant

M

Wall Finish as Specified

M

M

M

M

M

M

150

Villaboard

- copy

Anti-Fungal Sealant

M

Wall Tiles

75 to 125

Lap

Lap

Fire

Collar

M

M

M

M

5 to 8

100

300 cts

M

Membrane

M

Fillet

H3 Treated Timber

Frame

Recess

Fillet

Optional

Frame to

Floor

Adhesive & Fillet

Adhesive & Fillet

Mortar Bed or

proprietary Frame Support

≥ 5

M

≥ 5

≥ 150

Membrane height if no Shower

Top of Bath Rim

Aluminium Angle

  • 25 x 25mm
  • ≥ 300mm screw fix spacing
  • Sealant over head
  • Sealant wipe over cut ends

Timber Stud

  • Treated Fixings
  • Trim to ensure Bath clearance

Bath Support

  • Durable packers to level

Bath or Spa Installation


  • Install strictly to Manufacturer's instructions
  • Ensure front Dwarf Wall is drained & vented
  • Weigh down (water fill) when bedding & water testing


Bath & Spa INSTALLATION


NCC 2022 V1


  • Install strictly to Manufacturer's instructions
  • Ensure front Dwarf Wall is drained & vented
  • Weigh down (water fill) when bedding & water testing

Junctions


  • ≥ 12mm Bond breaker Fillet to all Junctions


Junction RULES


NCC 2022 V1


All Building Classes


AS 3740 2021, 4.10


May 2023



  • ≥ 12mm Bond breaker Fillet to all Junctions

Membrane


  • Compatible to suit substrate & bedding / finishes[1]
  • Test & protect from damage[2]


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

AS 3740:2021, 3.2

AS 3740:2021, 4.5.4

Fixings


  • ≤ 600mm CTS
  • Seal to prevent water ingress


Fixings


NCC 2022 V2


  • ≤ 600mm CTS
  • Seal to prevent water ingress

Wall Lining

  • Temp Opening to assist Bath Installation
  • Close Seal & Waterproof once Water Tested

Bath Waste

  • Top of outlet ≥ 25mm above FFL
  • Visible for water test
  • Temporary cap
  • Fillet surround to penetration

NCC 2022 HP, 10.2.12

NCC 2022 Vol 1, F2D4

NCC 2022 HP, 10.2.12

NCC 2022 Vol 1, F2D4

Fall to FW

NCC 2022 HP, 10.2.12

NCC 2022 Vol 1, F2D4

NCC 2022 HP, 10.2.4 (3) (b) (i)

NCC 2022 HP, 10.2.4 (2)

Overlap

Fixings


  • ≤ 600mm CTS
  • Seal to prevent water ingress


Fixings


NCC 2022 V2


  • Stainless Steel fixings
  • Form fillet around threaded rod
  • While clearing excess Chem-set, or
  • Sealant
  • Turn up Membrane ≥ 2 threads
  • Seal packer to Membrane
  • ≤ 600mm CTS
  • Seal to prevent water ingress

NCC 2022 HP, 10.2.4

AS 3740:2021, 4.13

AS 3740:2021, 4.10

Tools™ Best Practice

Bath WasteTools™ Best Practice

  • Top of outlet ≥ 25mm above FFL
  • Visible for water test
  • Temporary cap
  • Fillet surround to penetration

Tools™ Best Practice

Bath or Spa Installation


  • Provide waterproofing under spa area[1]
  • Ensure front Dwarf Wall is drained & vented[2]
  • Weigh down (water fill) when bedding & water testing


Bath or Spa Installation


NCC 2022 V1


AS 3740:2021, 4.13.6 (a)

AS 3740:2021, 4.13.6 (b)

AS 3740:2021, 4.13.6 (f)

AS 3740:2021, 4.13.6 (c)

AS 3740:2021, 4.13.6 (e)

AS 3740:2021, 4.13.6 (d)

Bath & Spa INSTALLATION


NCC 2022 V1


  • Bath support
  • Install over Concrete Mortar Bed or proprietary Frame
  • Check Bath Manufacturer's support frame details / recommendations & adapt as required
  • Outlet
  • Waterproofing turns up outlet Drain
  • Sealed flexible connection from Bath Drain to Outlet
  • Temporary Cap for protection prior to bath connection

AS 3740:2021, 4.13.6

Tools™ Best Practice

Fixings


  • ≤ 600mm CTS
  • Seal to prevent water ingress


Fixings


NCC 2022 V1


  • Stainless Steel fixings
  • Form fillet around threaded rod
  • While clearing excess Chem-set, or
  • Sealant
  • Turn up Membrane ≥ 2 threads
  • Seal packer to Membrane
  • ≤ 600mm CTS
  • Seal to prevent water ingress

Wall Linings


  • 6mm Fibre-cement for typical tile or paint finish
  • 8mm gap to Structural Floor


Wall Lining


NCC 2022 V1


  • Refer to Manufacturer's recommendations for Fixing type & spacing
  • 6mm Fibre-cement
  • Preferred for typical installations
  • ≤ 13mm thk Vitrified or Ceramic tiles
  • 9 to 12mm Fibre-cement
  • Where thicker stone tiles are to be used
  • WR Plasterboard NOT Allowed
  • 8mm Movement gap to slab
  • WATERPROOFER to seal gap with Polyurethane Sealant
  • 6mm Fibre-cement for typical tile or paint finish
  • 8mm gap to Structural Floor

Tools™ Best Practice

75 to 125

NCC 2022 HP, 10.2.24

NCC 2022 HP, 10.2.4 (2)

M

Tools™ Best Practice

AS 3740:2021, 4.10

AS 3740:2021, 4.10

NCC 2022 HP, 10.2.4

AS 3740:2021, 4.13

NCC 2022 HP, 10.2.21

AS 3740:2021, 4.2

NCC 2022 HP, 10.2.4

AS 3740:2021, 4.13

Substrate


  • Form falls in Structural Floor or Screed[1]
  • Smooth, clean, dry & dust free surface[2]


Substrate FALLS


NCC 2022 V3


All Building Classes


NCC 2022 F2D2, S26C3, 10.2.9, & 10.2.12 [2019 F1.7]


May 2023



AS 3740:2021, 2.3.1

AS 3740:2021, 2.3.5

  • Building elements in Wet Areas to be Waterproof or Water Resistant to NCC Specification 26, Part 10.2, & AS 3740
  • ≥ 1 : 100 fall required approaching Floor WasteAS 3740:2021, 2.3.1
  • ≥ 1 : 80 fall required to entire room where Shower unscreenedAS 3740:2021, 2.3.5

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)

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, 4.4.1

AS 3740:2021, 2.3

Internal Waterproofing Overview

Membrane Above Screed

Tools™ Best Practice

Fixings


  • ≤ 600mm CTS[1]
  • Seal to prevent water ingress


Fixings


NCC 2022 V2


  • Stainless Steel fixings
  • Form fillet around threaded rod
  • While clearing excess Chem-set, or
  • Sealant
  • Turn up Membrane ≥ 2 threads
  • Seal packer to Membrane

Tools™ Best Practice

Wall Linings


  • 6mm Fibre-cement for typical tile or paint finish
  • 8mm gap to Structural Floor


Wall Lining


NCC 2022 V1


  • Refer to Manufacturer's recommendations for Fixing type & spacing
  • 6mm Fibre-cement
  • Preferred for typical installations
  • ≤ 13mm thk Vitrified or Ceramic tiles
  • 9 to 12mm Fibre-cement
  • Where thicker stone tiles are to be used
  • WR Plasterboard NOT Allowed
  • 8mm Movement gap to slab
  • WATERPROOFER to seal gap with Polyurethane Sealant
  • 6mm Fibre-cement for typical tile or paint finish
  • 8mm gap to Structural Floor

Membrane


  • ≥ 1 : 100 fall required towards the Floor Waste[1]
  • ≥ 1 : 80 fall required to entire room where shower unscreened[2]


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, 2.3.1

AS 3740:2021, 2.3.5

Tools™ Best Practice

Timber StudTools™ Best Practice

  • Treated Fixings
  • Trim to ensure Bath clearance

150

Fall

AS 3740:2021, 4.10

NCC 2022 HP, 10.2.20

Tools™ Best Practice

M

Packing

Bathroom Floor

DPC

Anti-fungal Sealant

Neoprene Packer

Screed

M

Tools™ Best Practice

Bath SupportTools™ Best Practice

  • Durable packers to level

Adhesive

Fall to FW

Screed

Adhesive

AS 3740:2021, 4.10

Manufacturer's Requirement

M

M

AS 3740:2021, 4.10

Fall

- copy

Bath Rim

Support

Bath Frame

Recessed Edge

Fibre-cement

Adhesive

M

Substrate

12 Gal Self Tap

Wall Lining

Wall Finish as Specified

M

M

150

Manufacturer's Requirement

Overlap

Wall Lining - RCC Requirement

  • Temp Opening to assist Bath Installation
  • Close Seal & Waterproof once Water Tested

Fire

Collar

M

M

100

Frame

Recess

Adhesive & Fillet

Mortar Bed or

proprietary Frame Support

Tools™ Best Practice

Aluminium AngleTools™ Best Practice

  • 25 x 25mm
  • ≥ 300mm screw fix spacing
  • Sealant over head
  • Sealant wipe over cut ends

M

M

300 CTS

Optional

Frame to

Floor

NCC 2022 Vol 1, F2D4 (2)

NCC 2022 HP, 10.2.12 (a)

AS 3740:2021, 2.3.1

Recessed Edge Fibre-cement

Fall

Anti-Fungal Sealant

Wall Tiles

H3 Treated Timber

Adhesive & Fillet

Membrane height if no Shower

Top of Bath Lip

Tools™ Best Practice

NCC 2022 HP, 10.2.20

Aluminium Angle

  • 25 x 25mm
  • ≥ 300mm screw fix spacing
  • Sealant over head
  • Sealant wipe over cut ends

Aluminium Angle

  • 25 x 25mm
  • ≥ 300mm screw fix spacing
  • Sealant over head
  • Sealant wipe over cut ends

Recessed Edge

Fibre-cement

300 CTS

Timber Stud - Taylor Requirement

  • Treated Fixings
  • Trim to ensure Bath clearance

Timber Stud - RCC Requirement

  • Treated Fixings
  • Trim to ensure Bath clearance

Tools™ Best Practice

Wall LiningTools™ Best Practice

  • Temp Opening to assist Bath Installation
  • Close Seal & Waterproof once Water Tested

100

150

Bath Waste - RCC Requirement

  • Top of outlet ≥ 25mm above FFL
  • Visible for water test
  • Temporary cap
  • Fillet surround to penetration

Bath Support - Taylor Requirement

  • Durable packers to level

Bath Support - RCC Requirement

  • Durable packers to level

Bath Waste - Taylor Requirement

  • Top of outlet ≥ 25mm above FFL
  • Visible for water test
  • Temporary cap
  • Fillet surround to penetration

M

M

M

M

M

M

Bath or Spa

Bath

Frame

Treated Timber

Gal Self Tap

≥ 150

≥ 150

≥ 1:100

≥ 1:100

≥ 150

Concrete Screeds

≥ 150

75 to 125

Wall Lining - Taylor Requirement

  • Temp Opening to assist Bath Installation
  • Close Seal & Waterproof once Water Tested

AS 3740:2021, 2.3.1

AS 3740:2021, 2.3.5

Shower Corner Angle

Ventilation


  • 13mm Stainless Steel Door Bolt Escutcheon


Ventilation


NCC 2022 V1


  • 13mm Stainless Steel Door Bolt Escutcheon

Ventilation


  • 13mm Stainless Steel Door Bolt Escutcheon


Ventilation


NCC 2022 V1


  • Where vents not specified
  • ≥ 2 off Door Bolt Escutcheon or Floor Ferrule
  • Open end type to allow for ventilation
  • Drill & adhesive fix
  • 13mm Stainless Steel Door Bolt Escutcheon

Bath or Spa Installation


  • Provide waterproofing under spa area[1]
  • Ensure front Dwarf Wall is drained & vented[2]
  • Weigh down (water fill) when bedding & water testing


Bath & Spa INSTALLATION


NCC 2022 V1


Bath or Spa Installation


NCC 2022 V1


AS 3740:2021, 4.13.6 (a)

AS 3740:2021, 4.13.6 (b)

AS 3740:2021, 4.13.6 (f)

AS 3740:2021, 4.13.6 (c)

AS 3740:2021, 4.13.6 (e)

AS 3740:2021, 4.13.6 (d)

AS 3740:2021, 4.13.6

Tools™ Best Practice

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

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)

AS 3958.1:2007, A.2.3 (a)

AS 3958.1:2007, A.2.3 (b)

Ventilation


  • 13mm Stainless Steel Door Bolt Escutcheon[1]


Ventilation


NCC 2022 V1


  • Where vents not specified
  • ≥ 2 off Door Bolt Escutcheon or Floor Ferrule
  • Open end type to allow for ventilation
  • Drill & adhesive fix

Tools™ Best Practice

Bath or Spa Installation


  • Provide waterproofing under spa area[1]
  • Ensure front Dwarf Wall is drained & vented[2]
  • Weigh down (water fill) when bedding & water testing


Bath & Spa INSTALLATION


NCC 2022 V1


  • Bath support
  • Install over Concrete Mortar Bed or proprietary Frame
  • Check Bath Manufacturer's support frame details / recommendations & adapt as required
  • Outlet
  • Waterproofing turns up outlet Drain
  • Sealed flexible connection from Bath Drain to Outlet
  • Temporary Cap for protection prior to bath connection

Bath or Spa Installation


NCC 2022 V1


AS 3740:2021, 4.13.6 (a)

AS 3740:2021, 4.13.6 (f)

AS 3740:2021, 4.13.6 (b)

AS 3740:2021, 4.13.6 (c)

AS 3740:2021, 4.13.6 (e)

AS 3740:2021, 4.13.6 (d)

AS 3740:2021, 4.13.6

Tools™ Best Practice

Wall Linings


  • 6mm Fibre-cement for typical tile or paint finish[1]
  • 8mm gap to Structural Floor


Wall Lining


NCC 2022 V1


  • Refer to Manufacturer's recommendations for Fixing type & spacing
  • 6mm Fibre-cement
  • Preferred for typical installations
  • ≤ 13mm thk Vitrified or Ceramic tiles
  • 9 to 12mm Fibre-cement
  • Where thicker stone tiles are to be used
  • WR Plasterboard NOT Allowed
  • 8mm Movement gap to slab
  • WATERPROOFER to seal gap with Polyurethane Sealant

Tools™ Best Practice

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