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Appraisal number: 948 (2017)

Date issued: 1 Feb 2017

Description

Viking GM Torch On Membranes consist of three double-layer membrane systems (Gemini APP, Lybra SBS and Phoenix Super APAO). The membrane products (both base and cap sheets) are manufactured from fibreglass/polyester composite reinforced, modified bitumen.

Scope

Viking GM Torch On Membranes have been appraised as roof 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 respect to building height and maximum floor plan areas when subject to specific design.
  • With building structures designed and constructed to meet the requirements of the NZBC.
  • With substrates of plywood or concrete slab.
  • With a minimum fall for roofs of 1:30 and decks of 1:40.
  • With decks that have a maximum area of 40 m².
  • Situated in NZS 3604 wind zones up to and including extra high.

Viking GM Torch On Membranes have also been appraised for use as roof and deck waterproofing membranes on specifically designed buildings within the following scope:

  • Subject to specific structural and weathertightness design.
  • With substrates of plywood or concrete slab.
  • Situated in specific design wind pressures.
  • With the weathertightness design of junctions for each specific structure being the responsibility of the building designer.

Roofs and decks waterproofed with Viking GM Torch On 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 decks.
  • With the deck membrane continually protected from physical damage by a pedestal protection system or Viking Decoupling System.

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

The membranes must be installed by Viking Roofspec licensed and trained installers.

Technical literature

  • VIK_TOR_001_PENEOUTL - Viking Torch on Penetration Outlet and Overflow
  • VIK_TOR_001A_PENEOUTL-Viking Torch on Penetration Outlet and Overflow Side Exit
  • VIK_TOR_002_PENEBALC- Viking Torch on Penetration_Balcony Drain 80 mm
  • VIK_TOR_002a_PENEBALC- Viking Torch on Penetration_Balcony Drain 100 mm
  • VIK_TOR_003_PENEBALC- Viking Torch on Penetration_ Sump Outlet With overflow
  • VIK_TOR_005a_HORIPIPE- Viking Torch on Penetration_Horizontal Pipe
  • VIK_TOR_005a_HORIDUCT - Viking Torch on Penetration_Horizontal Ducting Pipe
  • VIK_TOR_007_PENEFLUE - Viking Torch on Penetration_Flue or Oversize Pipe
  • VIK_TOR_014_PENEACOU - Viking Torch on Penetration_Acoustic Mounting Block
  • VIK_TOR_021A_VENTPAPA - Viking Torch on Ventilation_ Cavity Vent At Parapet
  • VIK_TOR_041_PARASCUP - Viking Torch on Parapet_with Scupper Outlet
  • VIK_TOR_042_PARAOVER -Viking Torch-on Parapet with overflow
  • VIK_TOR_051_GUTTWALL - Viking Torch on Internal Gutter to wall
  • VIK_TOR_072_RJUNGUTI - Viking Torch on Roof Junction Metal Roof to Internal Gutter
  • VIK_TOR_091_WINDTHRS -Viking Torch Oin Threshold_window

Consenting instructions

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

Appraisal holder

Viking Roofspec, a division of Viking Group Ltd
Address:
Phone: 0800 729 799

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