Skip to main content

Appraisal number: 925 (2019)

Date issued: 14 Jun 2019

ARDEX WPM 1000 External Deck Membrane

Description

ARDEX WPM 1000 External Deck Membrane is a fully bonded, synthetic rubber, weldable sheet waterproofing membrane for use under directly adhered or uncoupled ceramic or stone tile finishes on external decks and balconies.

Scope

ARDEX WPM 1000 External Deck Membrane has been appraised for use as a deck and balcony waterproofing membrane for 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 engineering design.
  • With substrates of plywood, fibre-cement compressed sheet or suspended concrete slab.
  • With minimum falls for decks and balconies of 1:40 for plywood and 1:60 for concrete.
  • With deck and balcony size limited to 40 m².
  • Situated in NZS 3604 wind zones up to and including extra high with adhesive-fixed tiles.

ARDEX WPM 1000 External Deck Membrane has also been appraised for use as a deck and balcony membrane on buildings with the following scope:

  • Subject to specific structural design.
  • With substrates of plywood, fibre-cement compressed sheet or suspended concrete slab.
  • Situated in specific design wind pressures up to a maximum design differential ultimate limit state (ULS) of 6 kPa with adhesive-fixed tiles.
  • The weathertightness details at the interface with other building elements must be the subject of specific weathertightness design.

Decks and balconies must be designed and constructed in accordance with the following limitations:

  • With the membrane continually protected from exposure to ultraviolet (UV) light and from physical damage by ceramic or stone tile finishes.
  • With no steps within the deck level and no downpipes discharging directly onto the deck.

Movement and control joints in the substrate must be carried through the membrane and tile finish. The design and construction of the substrate and movement and control joints is specific to each building and is therefore the responsibility of the building designer and building contractor and is outside the scope of this Appraisal.

The ceramic or stone tile finishes are outside the scope of this Appraisal.

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

Technical literature

ARDEX WPM 1000 - External Weldable Undertile Sheet Membrane (TDS), July 2019

ARDEX WPM 1000 - Installation Instructions (including drawings below), 15/10/2018 

  • AW-00 Drawing List
  • AW-01 Threshold at Opening - Rebated
  • AW-02 Threshold at Opening
  • AW-03 Bottom Plate Wall - Direct Fixed
  • AW-04 Bottom Plate Wall - Cavity
  • AW-05 Internal Central
  • AW-06 Internal Gutter
  • AW-07 Box Gutter & Parapet Downturn
  • AW-08 Overflow
  • AW-09 Scupper Outlet
  • AW-10 Eaves & Verge
  • AW-11 Spouting
  • AW-12 Roof Penetration
  • AW-13 Flashing into concrete walls - Chase
  • AW-14 Flashing into concrete walls - Mechanical
  • AW-15 Flashing into concrete walls - Flashing
  • AW-16 One way substrate ventilator
  • AW-17 Pipe Penetration
  • AW-18 Top Fixed Balustrade
  • AW-19 Plant Equipment Supports
  • AW-20 Taping Substrate
  • AW-21 Seismic Joint
  • AW-22 Construction Joint
  • AW-23 Typical Membrane Lap & Layers
  • AW-24 3D - Internal Corner
  • AW-25 3D - Internal Roof Drain
  • AW-26 3D - Rainwater Head & Scupper Opening in Membrane
  • AW-27 3D- Roof Edge Mechanical Fixed
  • AW-28 Warm Roof System - Concrete
  • AW-29 Warm Roof System - Metal Deck
  • AW-30 Warm Roof System - Plywood

Consenting instructions

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

Appraisal holder

ARDEX New Zealand Ltd
Address:
Phone: 0800 227 339

Marketer details

Address:
Phone:
Web:
Email: