Description

SOPREMA Waterproofing Membrane Systems provide a waterproofing system, on new and existing roofs, podiums and decks of any size. SOPREMA Waterproofing Membrane Systems may be installed on a cold roof with insulation installed below the substrate or as a warm roof with PIR or Mineral Wool insulation installed above the substrate. A system incorporating a root-resistant cap sheet can be used in green roofs.

SOPREMA Waterproofing Membrane Systems are reinforced, double-layer bituminous waterproofing membrane systems, consisting of a cap sheet (DuO, Nova-SK, SOPRASUN and SOPRALENE) used with a basesheet (Soprasun Plus 3, DeboFlex, DeboTack, Soprastick, Nova-SK).

Scope

1. SOPREMA Waterproofing Membrane Systems are certified for use:

• a. on buildings
  • i. within the scope limitations of NZBC Acceptable Solution E2/AS para 1.1 located in all wind zones up to and including Extra High (as in NZS3604:2011), or
  • ii. subject to specific structural engineering design (complying with Verification Method B1/VM1 and referenced Standard AS/NZS1170:2002 Structural Design Actions and relevant cited material standard) up to:
    • 1) a maximum ULS wind design pressure of 4.5 kPa, or
    • 2) higher ULS wind design pressures subject to the manufacturer’s site specific fastening requirements to resist wind forces as determined by AS/NZS 1170, and
• b. where the finished fall is not less than 1:80 for roofs, podiums and decks and not less than 1:100 for gutters
• c. applied to the following substrates:
  • i. H3.2 treated timber, including plywood sheets and reconstituted wood panels (Strandboard), Cross laminated timber (CLT) (directly to the timber substrate or to PIR or Mineral Wool boards in between the substrate and basesheet). The preservative treatment shall not be LOSP (light organic solvent preservative) or CuN (copper nitrate).
  • ii. Concrete substrates (directly to the concrete substrate or to PIR or Mineral Wool boards in between the substrate and basesheet).
  • iii. SOPREMA approved metal tray decks (to PIR or Mineral Wool boards in between the metal tray deck substrate and basesheet).
  • iv. SOPREMA approved roof cover boards.
  • v. SOPREMA approved insulated panels.

2. SOPREMA Waterproofing Membrane Systems shall be:

a. designed and installed in accordance with the SOPREMA Roofers Guide Bituminous Membranes 2021 Edition, and

b. installed by a SOPREMA Certified Applicator (see https://equus.nz/find-an-applicator-3/ to find an approved installer in New Zealand).

c. protected (e.g by pavers) where subject to general pedestrian traffic. For light roof maintenance foot traffic, it is suitable to remain unprotected.