Description

Viking Enviroclad “Sure-Weld TPO” Waterproofing Membrane is single ply, polyester fabric reinforced, thermoplastic polyolefin (TPO) waterproofing sheet membrane. It is grey or white and supplied in rolls: 1.14 mm thick

• 2.44 m wide x 30.4 m long
• 3.0 m wide x 30.4 m long
• 3.66 m wide x 30.4 m long
• 4.88 m wide x 30.4 m long

1.52 mm thick

• 2.44 m wide x 30.4 m long
• 3.0 m wide x 30.4 m long
• 3.66 m wide x 30.4 m long
• 4.88 m wide x 30.4 m long

2.52 mm thick FleeceBack

• 3.6 m wide x 30.4 m long

Viking Enviroclad “Sure-Weld TPO” Roof & Deck Waterproofing System is intended to be adhesive bonded or mechanically fixed as waterproofing for roofs, decks, parapets and to line gutters. It may also be installed on a cold roof with insulation installed below the substrate or as a warm roof with insulation installed above the substrate.

Scope

1. Viking Enviroclad “Sure-Weld TPO” Waterproofing Membrane is certified for use on buildings:

• a) where the sub-structure is:
  • i. timber designed in accordance with NZS3604 as a light roof; or
  • ii. concrete or other specifically designed sub-structure designed in accordance with verification method B1/VM1 using the structural design actions in AS/NZS1170; and
• b) situated:
  • i. in Wind Zones, up to, and including Extra High (as defined in NZS 3604), and within the scope limitations of NZBC Acceptable Solution E2/AS1 para 1.1 with regards to building height; or
  • ii. in wind pressures up to a maximum design differential ultimate limit state (ULS) of:
    • a. 6.5 kPa when fully bonded; or
    • b. 2.7 kPa when fixed using either of the mechanical fastening methods (HP-X Fasteners and Piranha Plates or Rhino Bond System), and
  • iii. in any exposure zone (as defined in NZS3604) except microclimates; and
• c) where the substrate for the membrane is:
  • i. timber or plywood (CCA or MCA H3.2 treated)
  • ii. OSB (except on decks)
  • iii. Concrete (cast in-situ or pre-cast (directly or with PIR Boards between)
  • iv. Metal tray decks with PIR boards between; and
• d) where the roof or deck is pitched or nominally flat (minimum fall 1:80) and gutters have a minimum fall of 1:100.

2. Viking Enviroclad “Sure-Weld TPO” Waterproofing Membrane shall:

• a) be designed and installed in accordance with the Viking Enviroclad Applicator Handbook VK Edition V4 2024 and Details, and
• b) be installed by Viking Approved Applicator /Approved installer (see https://www.vikingroofspec.co.nz/find-an-applicator/ to find an approved installer), and
• c) be protected where the membrane is subject to pedestrian traffic other than for installation and general maintenance, and
• d) be separated or protected from heat sources such as fireplaces, heating appliances and chimneys.

3. This certification does not cover:

• a) the design and construction of the substrate and movement / control joints;
• b) the weather tightness design of junctions between building elements on specifically designed buildings;
• c) applications where ancillary components other than those provided by Viking Roofspec Limited listed in the installation manual are substituted with alternative products;
• d) PIR insulation incorporated into warm roof construction.