Pavers on Pedestal Supports Building Codes & Rules
- Pavers on Pedestal Supports: Tools™ simplifies the National Construction Code (NCC) with interactive graphics, including deemed to comply & best practices.
Door or Window Sill
M
Fillet
Floor System
M
Pedestal
Support
Acoustic / Underlay
Fall
Angle
Facade Building Interfaces
- Façade Engineers to be engaged to review ALL building envelope interfaces
Facade Interface REQUIREMENTS
NCC 2022 V1
- Façade Engineers are to be engaged to review ALL interfaces within a building envelope
- Some interfaces within a residential façade (e.g. curtain wall/window wall/cladding) will be the ultimate responsibility of the sub contractor, but
- the Façade engineer is still required to peer review the interface details within each system
- Façade Engineer is to highlight unique interfaces of a building enclosure in their FP1.4 Report and either
- regulate the design themselves (e.g. NSW D&BP approach), or
- determine a pathway on who will document or certify the weatherproofing of the unique interface
- Façade Engineers to be engaged to review ALL building envelope interfaces
Membrane
Substrate
AS 4654.2:2012, 2.8.3
WaterstopAS 4654.2:2012, 2.8.3
- Rebate, or
- Waterstop angle
M
M
M
Gasket to
protect
Membrane
Membrane
Fillet
M
Internal Floor Level
Floor Finish
Pedestal
Support
Water Holding Surface
AS 4654.2:2012, 2.5.2
≥ 1:100AS 4654.2:2012, 2.5.2
Membrane Height
- Height sufficient to prevent wind-driven water entry[1]
Membrane Height INTERPRETATION
NCC 2022 V1
NCC 2022 Vol 1, F1D5
AS 4654.2:2012, 2.8.1.1
AS 4654.2:2012, 2.8.3 (b)
The following Tools™ interpretation should be confirmed as DtS or Performance Solution
- A roof, balcony, podium or similar horizontal surface part of a building must be provided with a waterproofing membrane to AS 4654.1 & 2NCC 2022 Vol 1, F1D5
- AS 4654.2-2012, 2.8.1.1 states Membrane height above finished surface is sufficient to prevent wind-driven water entering the buildingAS 4654.2:2012, 2.8.1.1
- Termination heights are given in the Standard as a guide only, so
- The heights given are not mandatory
- The "finished surface level" is implied as a solid non-draining surface
- AS 4654.2-2012, 2.8.3 (b) states where the floor finishes do not allow an upturn, the membrane must terminate into the stormwater system, this is backed up by a Zero Threshold diagramAS 4654.2:2012, 2.8.3 (b)
- Pavers on pedestals are a similar solution
- The free draining pavers are the grate
- The membraned balcony with falls is the drain to stormwater
- The membrane termination height is provided above the "water holding surface" which is also protected from wind driven rain by the pavers
Membrane Vertical Termination CERTIFICATION
NCC 2022 V1
- Confirm with Waterproofing Consultant to confirm installation is considered DtS or Performance Solution
- Mirvac's current position is considered DtS with Vertical Termination measured from Overflow Level
- If horizontally discharged, taken vertically from the invert of the Overflow, or
- If vertically discharged, taken vertically from the top of the Overflow
Membrane Height RULES
NCC 2022 V1
All Building Classes
NCC 2022 F1D5 [2019 Table F1.4]
May 2023
NCC 2022 Vol 1, F1D5
AS 4654.2:2012, 2.8.1.1
AS 4654.2:2012, A
- A roof, balcony, podium or similar horizontal surface part of a building must be provided with a waterproofing membraneNCC 2022 Vol 1, F1D5
- To AS 4654.1 & AS 4654.2
- Unless is a deck or perforated or directly above ground
- Measured from top of surface finish to height of membraneAS 4654.2:2012, 2.8.1.1
- Height sufficient to prevent wind-driven water entry
- Varies depending on wind class & level of protection
- Termination heights to AS 4654.2 2012, Table A1 are minimum & informative onlyAS 4654.2:2012, A
- Must be specified based on individual project wind classification
AS 4654.2:2012, 2.8.1.1
- Height sufficient to prevent wind-driven water entryAS 4654.2:2012, 2.8.1.1
Sub-sill
Waterstop Angle
Redirecting... (5)