Vertical Penetration with Collar Building Codes & Rules

All Building Classes

NCC 2022 F1D5, H2D8, & HP10.2 [2019 F1.4, 3.8.1.2, 3.8.1.3]

May 2023

• Building elements in Wet Areas to be Waterproof or Water Resistant to the NCC^{AS 4654.2:2012, 2.8.1.1AS 4654.2:2012, ANCC 2022 Vol 1, F1D5}
• Height of Vertical Upward Termination^{NCC 2022 Vol 2, H2D8}
• ≥ determined Membrane Height (see table below)
• Varies depending on Wind Class & level of protection
• If Stormwater retention is included on the design^{NCC 2022 HP, 10.2.1}
• Higher Height Upturn

• Height varies with wind class^{AS 4654.2:2012, 2.8.1.1AS 4654.2:2012, A}

M

≥ 75^{AS 4654.2:2012, 2.8.4}

Clearance

≥ 10^{AS 4654.2:2012, 2.8.4}

Overlap

Sealant wipe over fixings

Sealant Bead

Collar

Finished Level

≥ 1:100^{AS 4654.2:2012, 2.5.2}

Fall

M

M

M

M

M

M

Floor System

M

M

M

Vertical Penetration

• Sealed^[1]
• Collar fixed to the substrate
• Membrane turns up & supported by Collar

Vertical Penetration RULES

NCC 2022 V1

AS 4654.2:2012, 2.8.4

NCC 2022 Vol 1, F1D5

NCC 2022 Vol 2, H2D8

NCC 2022 HP, 10.2.1

AS 4654.2:2012, 2.8.4

AS 4654.2:2012, 2.8.4