Steel Door Jamb Building Codes & Rules
- Steel Door Jamb Tools™ simplifies the National Construction Code (NCC) with interactive graphics, including deemed to comply & best practices.
Steel Door Jamb
- Trim base to suit Setdown
- Compatible primer
- 3 to 5mm Membrane extension beyond Finishes
- Paint finish
Sealant bead
Boxed Studs
Staggered Fixings
≤ 300
Sealant Fillet
8
≤ 3
2
3 to 5
3 to 5
M
2
≤ 300
Grout repair to any slab defects
Wet Area Finished floor level
≥ 150
≥ 25
Top of Membrane
Finished level
Non-shrink grout Packer if required to maintain height
M
M
Structural level
Waterstop Angle - RCC Requirement
- 300mm mechanical Fixing centres
- Sealant wipe over heads
- 2mm gap to jamb to allow for movement
- File smooth all edges
- Sealant to all edges & junctions
≥ 1 : 100 / 1 : 80
Finished floor level
Fall to Drain
Aligned centreline of Door Leaf
≤ 3
Wet Area Finished floor level
- copy8
Waterstop
- ≥ 40mm set down
- ≥ 25mm Screed depth to be maintained when calculating falls throughout the wet area
- Sealant beads & fillets to protect membrane
Waterstop RULES
NCC 2022 V1
All Building Classes
NCC 2022 F2D2, S26C3, & Part 10.2.11 to 13 [2019 F1.7]
May 2023
Water Stop INSTALLATION
NCC 2022 V1
- ≥ 40mm set down
- ≥ 25mm Screed depth to be maintained when calculating falls throughout the wet area
- Sealant beads & fillets to protect membrane
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
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
Membrane Substrate
- ≥ 1 : 100 fall required towards the Floor Waste
- ≥ 1 : 80 fall required to entire room where Shower unscreened
- 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
- ≥ 1 : 100 fall required towards the Floor Waste
- ≥ 1 : 80 fall required to entire room where Shower unscreened
- Form falls in Structural Floor or Screed
- Smooth, clean, dry & dust free surface
Waterstop Angle
- Preferred alignment to center of Door Leaf
Sealant over anchor screws
