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Appraisal number: 404 (2019)

Date issued: 18 Dec 2019

bituFLAME® Roof and Deck Membrane

Description

bituFLAME® Roof and Deck Membranes are waterproofing membranes for nominally flat and pitched roofs and decks. They are installed as a multi-layer system with either a mineral chip finished product or UV protective paint as the top layer or as a single-layer system onto a concrete substrate under heavy protection such as paving slabs or a topping screed. 

Scope

bituFLAME® Roof and Deck 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 or suspended concrete slab.
  • With minimum falls for roofs of 1:30 and decks of 1:40.
  • With deck size limited to 40 m².
  • Situated in NZS 3604 wind zones up to and including extra high.

bituFLAME® Roof and Deck 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 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 bituFLAME® Roof and Deck 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 membranes continually protected from physical damage by pedestal protection 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 Waterproofing Systems NZ Ltd trained and approved installers.

Technical literature

bituFLAME Torch-on Membrane Architectural Product Brochure

Architectural details:

  • bFS12 Upstand Cutaway - Single Layer, 10 June 2014
  • bFD34 tileJAK paver-wall detail- type 2, 8 November 2016
  • bFD19 bituFLAME moisture vent type 1, 30 March 2016
  • bFD17 SUREFLOW Water Outlet 2 - ring clamped, 30 March 2016
  • bFD08 Fascia-spouting detail, 30 March 2016
  • bFD11 Roof Expansion cap detail, 25 September 2014
  • bFD26 bituFLAME roof vent type 2, 30 March 2016
  • bFD04 Gutter wall 2 detail - direct fixed cladding, 10 June 2014
  • bFD33 TileJAK paver-wall detail type 1, 8 November 2016
  • bFD12 Internal ply angle type 1, 25 March 2017
  • bFD15 Guttter upstand - wall cavity type 1, 25 September 2014
  • bFD29 SUPERFLOW Water Outlet (dropeer) - ring clamped dome, 30 March 2016
  • bFD32 bituFLAME Overflow Scupper Section 1, 25 March 2017
  • bFD01 Gutter Parapet, 25 September 2014
  • bFD28 SUREFLOW Water Outlet 3 (dropper) - ring clamped dome, 30 March 2016
  • bFD18 SUREFLOW Water Outlet 2 - ring clamped dome, 30 March 2016
  • bFD36 tileJAK paver-threshold detail - type 2, 8 November 2016
  • bFD35 tileJAK paver-threshold detail - type 1, 8 November 2016
  • bFD23 SUREFLOW Water Outlet 3 - ring clamped, 30 March 2016
  • bFD16 Gutter upstand - wall cavity type 2, 10 June 2014
  • bFD25 bituFLAME moisture vent type 2, 30 March 2016
  • bFD22 Roof batten join, 10 June 2014
  • bFD20 bituFLAME roof vent type 1, 30 March 2016
  • bFD30 bituFLAME outlet scupper protection, 25 March 2017
  • bFD21 Pipe dektite penetration, 25 March 2017
  • bFD24 SUREFLOW Water outlet 4 ring clamped dome, 30 March 2016
  • bFD31 bituFLAME overflow scupper plan, 25 March 2017
  • bFD03 Gutter wall detail- direct fix cladding, 10 June 2014
  • bFD38 Timber raft floating deck-wall detail - type 2, 30 March 2016
  • bFD14 Concrete Upstand cut-away, 10 June 2014
  • bFD13 Internal ply angle type 2, 30 March 2016
  • bFD09 Flue dektite penetration, 25 March 2017
  • bFD05 Concrete substrate type 1, 25 March 2017
  • bFD10 Ply Substrate expansion joint, 10 June 2014
  • bFD06 Concrete ply substrate type 2, 25 March 2017
  • bFD37 Timber raft floating deck-wall detail -type 1, 10 June 2014
  • bFD40 Timber Raft Floating deck-threshold detail type 2, 30 March 2016
  • bFD07 Barge 1 detail 30 March 2016
  • bFD39 timber raft floating deck-threshold detail type 1, 10 June 2014
  • bFS10 Construction Joint Type 1- sg edge, 10 June 2014
  • bFS06 Vertical Termination type 2, 10 June 2014
  • bF-S01 Gutter Parapet, 10 June 2014
  • bFS11 Internal Gutter Membrane installation, 10 June 2014
  • bF-S04 Gutter wall junction type 2 direct fix, 10 June 2014
  • bFS09 Pipe Dektite Penetration, 10 June 2014
  • bFS03 Gutter Wall Junction type 1 Cavity, 10 June 2014
  • bFS05 Vertical Termination type 1, 10 June 2014
  • bFS01 Gutter Parapet, 10 June 2014
  • bFS03 Gutter Wall Junction Type 1 Cavity, 10 June 2014
  • bFS04 Gutter wall Junction type 2 direct fix, 10 June 2014
  • bFS05 Vertical Termination type 1, 10 June 2014
  • bFS06 Vertical Termination type 2, 10 June 2014
  • bFS09 Pipe Dektite Penetration, 10 June 2014
  • bFS10 Construction Joint Type 1 sg edge, 10 June 2014
  • bFS11 Internal Gutter Membrane Installation, 10 June 2014
  • bFS12 Upstand Cutaway- Single Layer, 10 June 2014

Consenting instructions

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

Appraisal holder

Waterproofing Systems NZ Ltd
Address:
Phone: 09 579 1460
Email:

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