Pavers on Pedestal Supports Building Codes & Rules

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 & 2^{NCC 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 building^{AS 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 diagram^{AS 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

• 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

All Building Classes

NCC 2022 F1D5 [2019 Table F1.4]

May 2023

• A roof, balcony, podium or similar horizontal surface part of a building must be provided with a waterproofing membrane^{NCC 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 membrane^{AS 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 only^{AS 4654.2:2012, A}
• Must be specified based on individual project wind classification

• Height sufficient to prevent wind-driven water entry^{AS 4654.2:2012, 2.8.1.1}

Fixings

• ≤ 600mm CTS^[1]
• Seal to prevent water ingress^[2]

Fixing RULES

NCC 2022 V3

NCC 2022 HP, 13.4.4

NCC 2022 Vol 1, J5D5 (1)

NCC 2022 Vol 2, H6D2 (1)

AS 4654.2:2012, 2.8.3

Fixing BEST PRACTICE

NCC 2022 V1

AS 4654.2:2012, 2.8.1.1

Manufacturer's Requirement