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Appraisal number: 728 (2017)

Date issued: 17 Jan 2018

ARDEX WPM 615 and WPM 612 TPO Membranes

Description

ARDEX WPM 615 and WPM 612 TPO Membranes are single-ply, adhesive-fixed, polyester weft reinforced, thermoplastic polyolefin (TPO) waterproofing sheet membranes for building roofs and decks.

Scope

ARDEX WPM 615 and WPM 612 TPO Membranes have been appraised as roof and deck waterproofing membranes on buildings within the following scope:

  • The scope limitations of NZBC Acceptable Solution E2/AS1 paragraph 1.1.
  • The scope limitations of NZBC Acceptable Solution E2/AS1 paragraph 1.1 with regards to building height and floor plan area when subject to specific structural design.
  • With substrates of plywood, Strandsarking (roofs only) or suspended concrete slab.
  • With minimum falls for roofs of 1:30, plywood decks of 1:40 and suspended concrete slab of 1:60.
  • With decks limited to 40 m².
  • Situated in NZS 3604 wind zones up to and including extra high.

ARDEX WPM 615 and WPM 612 TPO Membranes have also been appraised as roof and deck waterproofing membranes on buildings within the following scope:

  • Subject to specific structural and weathertightness design.
  • With substrates of plywood, Strandsarking (roofs only) or suspended concrete slab.
  • Situated in specific design wind pressures up to a maximum design differential ultimate limit state (ULS) of 3 kPa.
  • With the weathertightness design of junctions for each specific structure being the responsibility of the building designer.

Roofs and decks waterproofed with ARDEX WPM 615 and WPM 612 TPO Membranes must be designed and constructed in accordance with the following limitations:

  • Nominally flat roofs and decks and pitched roofs constructed to drain water to gutters and drainage outlets complying with the NZBC.
  • With no steps within the deck level, no integral roof gardens and no downpipe discharging directly onto the deck.
  • With the deck membrane continually protected from physical damage by a pedestal protection system.

The design and construction of the substrate and movement and control joints is specific to each building and therefore the responsibility of the building designer and building contractor and is outside the scope of this Appraisal.

The membranes must be installed by ARDEX New Zealand Ltd approved applicators.

Technical literature

  • T-LS-1 - 09/2009 ARDEX TPO Lap Splice using Automatic Welder
  • T-LS-2 - 09/2009 ARDEX TPO Lap Splice using Hand Welder
  • T-LS-3 - 09/2009 ARDEX TPO Lap Splice Fastener Layout
  • T-LS-4 - 09/2009 ARDEX TPO Lap Splice T Joint with Unsupporting Flashing
  • T-LS-5 - 09/2009 ARDEX TPO Lap Splice T Joint with Unsupporting Flashing
  • T-LS-6 - 09/2009 ARDEX TPO Lap Splice at Curb or Wall Flashing
  • T-LS-7 - 09/2009 ARDEX TPO Cut Edge Treatment Application
  • T-LS-8 - 09/2009 ARDEX TPO Lap Splice 4 T crossing Membranes
  • T-BT-1 - 09/2009 ARDEX TPO Base Tie In with Plates Fastened to deck
  • T-BT-2 - 09/2009 ARDEX TPO Base Tie In with Plates Fastened to vertical surfaces
  • T-BT-3 - 09/2009 ARDEX TPO Base Tie In with TPO coated metal
  • T-BT-4 - 09/2009 ARDEX TPO Base Tie In with TPO coated metal (with brake)
  • T-BT-5 - 09/2009 ARDEX TPO Base Tie In with securement at inside corner
  • T-BT-6 - 09/2009 ARDEX TPO Base Tie In with securement at outside corner
  • T-BT-7 - 09/2009 ARDEX TPO TPO Coated metal splice
  • T-BT-8 - 09/2009 ARDEX TPO Base Tie In at upstand with existing fillet
  • T-C-1 - 09/2009 ARDEX TPO Outside Corner
  • T-C-2 - 09/2009 ARDEX TPO Inside Corner
  • T-C-3 - 09/2009 ARDEX TPO Outside Corner with TPO Coated Metal
  • T-C-4 - 09/2009 ARDEX TPO Inside Corner with TPO Coated Metal
  • T-C-5 - 09/2009 ARDEX TPO Outside Corner with TPO Coated Metal (with brake) using ARDEX TPO unsupported flashing
  • T-C-6 - 09/2009 ARDEX TPO Inside Corner with continuous wall flashing
  • T-P-1 - 09/2009 ARDEX TPO Penetration with ARDEX TPO large pipe flashing
  • T-P-1 - 09/2009 ARDEX TPO Penetration with ARDEX TPO large pipe flashing
  • T-P-2 - 09/2009 ARDEX TPO Penetration with ARDEX TPO universal pipe flashing
  • T-P-3 - 09/2009 ARDEX TPO Penetration with ARDEX TPO flashing (unsupported)
  • T-P-4 - 09/2009 ARDEX TPO Hot Pipe Penetration with ARDEX TPO flashing
  • T-P-5 - 09/2009 ARDEX TPO Penetration with ARDEX TPO Penetration Pocket Kit
  • T-P-6 - 09/2009 ARDEX TPO Membrane Securement Layout at Penetration (Target Patch)
  • T-P-7 - 09/2009 ARDEX TPO Membrane Securement Layout at Penetration (Cover Strips)
  • T-D-1 - 09/2009 ARDEX TPO Field Fabricated Field Drain
  • T-D-2 - 09/2009 ARDEX TPO TPO Coated Drain
  • T-D-3 - 09/2009 ARDEX TPO Drain with Clamping Ring
  • T-D-4 - 09/2009 ARDEX TPO TPO Pre-molded Scupper
  • T-E-1 - 09/2009 ARDEX TPO Flat Expansion Joint with Welded Splice
  • T-E-2 - 09/2009 ARDEX TPO Raised Expansion Joint
  • T-E-3 - 09/2009 ARDEX TPO Raised Expansion Joint with Metal Joint Cover
  • T-E-4 - 09/2009 ARDEX TPO Wall Expansion Joint
  • T-RE-1 - 09/2009 ARDEX TPO Roof Edge Gutter with TPO Coated Metal
  • T-RE-2 - 09/2009 ARDEX TPO Roof Edge with TPO Coated Metal
  • T-RE-3 - 09/2009 ARDEX TPO Roof Edge using TPO Quick Seam Flashing
  • T-RE-4 - 09/2009 ARDEX TPO Roof Edge with Edge Profile
  • T-RE-5 - 09/2009 ARDEX TPO Roof Edge Splice with TPO Coated Metal
  • T-RE-6 - 09/2009 ARDEX TPO Alternative Roof Edge with Edge Profile
  • T-T-1 - 09/2009 ARDEX TPO Termination with ARDEX Pressure Seal
  • T-T-2 - 09/2009 ARDEX TPO Termination with Termination Bar on outside of parapet wall
  • T-T-3 - 09/2009 ARDEX TPO Termination with Coping Stone
  • T-T-4 - 09/2009 ARDEX TPO Termination with Metal Coping
  • T-T-5 - 09/2009 ARDEX TPO Termination with Counterflashing
  • T-T-6 - 09/2009 ARDEX TPO Termination with Pressure Seal Elevation Change
  • T-T-7 - 09/2009 ARDEX TPO Pressure Seal at Joint in Precast Concrete Panel
  • T-T-8 - 09/2009 ARDEX TPO Pressure Seal at Wall Expansion Joint
  • T-T-9 - 09/2009 ARDEX TPO Monotrim Profile Flashing Termination
  • T-T-10 - 09/2009 ARDEX TPO Intermediate Attachment at Wall Flashing

Note: The Appraisal scope is for substrates of plywood, strandsarking and concrete only. The details in some cases show the Ardex WPM 615 TPO Roofing Membrane being installed over an insulation material. This is outside the scope of the Appraisal and these details are only included to show shape and how to detail the membrane in the situation shown.

Consenting instructions

Always refer to the Appraisal in full and the technical literature.

Appraisal holder

ARDEX New Zealand Ltd
Address:
Phone: 09 636 0005
Email:

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