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Appraisal number: 463 (2017)

Date issued: 17 Jan 2018

ARDEX Shelterbit Membranes

Description

ARDEX Shelterbit Membranes are waterproofing membranes for nominally flat and pitched roofs and decks. They are installed as multi-layer systems with a mineral chip finished product or as a single-layer system onto a concrete substrate under heavy protection such as paving slabs or a topping screed. 

Scope

ARDEX Shelterbit 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 plywood roofs of 1:30, concrete roofs of 1:60 and decks of 1:40.
  • With deck size limited to 40 m².
  • Situated in NZS 3604 wind zones up to and including extra high.

ARDEX Shelterbit 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 6 kPa.
  • With the weathertightness design of junctions for each specific structure being the responsibility of the building designer.

Roofs and decks waterproofed with ARDEX Shelterbit Membranes must be designed and constructed in accordance with the following limitations:

  • Nominally flat or pitched roofs and decks 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 direct discharge to 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 is therefore the responsibility of the building designer and building contractor and is outside the scope of the Appraisal.

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

Technical literature

ARDEX Shelterbit Membranes

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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