ARDEX Butynol is appraised for use as waterproofing membranes for buildings (roofs and decks) with timber supporting structures designed and constructed in accordance with the NZBC, with normally flat or pitched roofs constructed to drain water to gutters and drain outlets complying with NZBC, with substrates of plywood or sheet and with decks that have a maximum size of 40m².

ARDEX Butynol is also appraised for use as waterproofing membranes for external reinforced concrete and plywood roofs, pedestrian decks and balconies up to three storeys with a maximum height from ground to eaves of 10m and with a floor plan area limited only by seismic and structural joints. It is also suitable for external reinforced concrete and plywood roofs, pedestrian decks and balconies subjected to maximum wind pressures, with reinforced concrete structure and timber supporting structures designed and constructed in accordance with the NZBC, and with normally flat, curved or pitched roofs constructed to drain water and gutters and drain outlets complying with NZBC.

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ARDEX Butynol, assuming use, install and maintenance stated within the ARDEX Butynol Datasheet, will meet the following provisions of the NZBC:

• Clause B2 Durability: Performance B2.3.1 (b) 15 years.
• Clause E2 External Moisture: Performance E2.3.1 and E2.3.2.
• Clause F2 Hazardous Building Materials: Performance F2.3.1.

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BRANZ Appraised

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ARDEX Torch-Applied Roofing Membranes have been appraised as roof and deck waterproofing membranes on buildings with the following scope:

• The scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1; or,
• The scope of 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; and,
• With substrates of plywood, Strandsarking (roofs only) or suspended concrete slab; and,
• With minimum falls for plywood roofs of 1:30, concrete roofs of 1:60 and decks of 1:40; and,
• With deck size limited to 40m²; and,
• Situated in NZS 3604 Wind Zones, up to, and including, Extra High.

ARDEX Torch-Applied Roofing Membranes have also been appraised as roof and deck waterproofing membranes on buildings with the following scope:

• Subject to specific structural and weathertightness design; and,
• With substrates of plywood, Strandsarking (roofs only) or suspended concrete slab; and'
• Situated in specific design wind pressures up to a maximum design differential ultimate limit state (ULS) of 6 kPa; and,
• With the weathertightness design of junctions for each specific structure being the responsibility of the building designer.

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

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In the opinion of BRANZ, Shelterbit Roofing Membranes, if designed, used, installed and maintained in accordance with the statements and conditions of Appraisal No. 463 (2011), will meet the following provisions of the NZBC:

• Clause B2 Durability: Performance B2.3.1 (b), 15 years. Shelterbit Roofing Membranes meet this requirement.
• Clause E2 External Moisture: Performance E2.3.1 and E2.3.2. Shelterbit Roofing Membranes meets these requirements.
• Clause F2 Hazardous Building Materials: Performance F2.3.1. Shelterbit Roofing Membranes meet this requirement and will not present a health hazard to people.

Shelterbit Roofing Membranes have been appraised as an Alternative Solution in terms of New Zealand Building Code compliance. The membranes are an alternative to the membranes specified in NZBC Acceptable Solution E2/AS1, and an Alternative Solution subject to specific design for other buildings not covered within E2/AS1.

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BRANZ Appraised

ARDEX Damp-proof membranes have been appraised as a damp-proof membrane for use under floor slabs complying with NZS 3604 and as a damp-proof membrane behind concrete masonry basement walls and under floor slabs complying with NZS 4229.

ARDEX Damp-Proof Membranes have also been appraised for use as a damp-proof membrane on buildings subject to specific design within the following scope:

• Where the design of the building will be the responsibility of the building designer; and,
• With clean, sound, continuous substrates of insitu or precast concrete complying with NZS 3103 and AS/NZS 1170 or concrete masonry complying with NZS 4230 and 4210; and,
• Where the membrane is adequately protected against damage during backfilling and in service; and,
• Where subsoil drainage and free draining granular backfill has been placed behind basement walls

The products must be installed by ARDEX New Zealand Limited approved applicators.

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This product/system if designed, used, installed and maintained in accordance with the statements and conditions of the technical literature, will meet or contribute to meeting the following provisions of the NZBC:

• Clause B2 Durability: Performance B2.3.1 (a) not less than 50 years
• Clause E2 External Moisture: Performance E2.3.3
• Clause F2 Hazardous Building Materials: Performance F2.3.1

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