Casali Roof and Deck Membrane Systems 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; or,
• the scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1 with regard to building height and floor plan area when subject to specific structural design; and,
• with substrates of plywood, fibre cement compressed sheet 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.
• situated in specific design wind pressures up to a maximum design differential Ultimate Limit
• State (ULS) of 6 kPa with the weathertightness detailing subject to specific design.

Casali Roof and Deck Membrane Systems have also been appraised for use as roof and deck waterproofing membranes on specifically designed buildings within the following scope:

• With building structures designed and constructed to comply with the NZBC; and,
• With roof and deck supporting structures of timber framing with substrates of plywood or fibre cement sheet; and,
• With substrates of suspended concrete slab; and,
• Subjected to maximum wind pressures; and,
• With the weathertightness design of all junctions being the subject of specific design by the designer.

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In the opinion of BRANZ, Casali Dermabit/Dermafil Roof and Deck Membrane Systems, if designed, used, installed and maintained in accordance with the statements and conditions of this Appraisal, will meet or contribute to meeting the following provisions of the NZBC:

• Clause B2 DURABILITY: Performance B2.3.1 (b) 15 years and B2.3.2. Casali Dermabit/Dermafil Roof and Deck Membrane Systems meet this requirement. See Paragraph 10.1.
• Clause E2 EXTERNAL MOISTURE: Performance E2.3.1 and E2.3.2. Casali Dermabit/Dermafil Roof and Deck Membrane Systems meets these requirements. See Paragraphs 13.1–13.9.
• Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. Casali Dermabit/Dermafil Roof and Deck Membrane Systems meet this requirement.

Casali Dermabit/Dermafil Roof and Deck Membrane Systems 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

COREFLEX 60: A dual component waterproofing membrane system that combines a modified PVC reinforced thermoplastic membrane with an Active Polymer Core (APC) layer into one high-performance, easy-to-use product. This composite membrane provides both a fully welded thermoplastic membrane with an integrally bonded self-sealing active waterproofing layer to assure optimal performance.

Suitable for installation in:

• underslab
• property line walls
• backfilled foundation walls
• tunnels
• earth covered structures
• new and restoration plaza decks
• split-slab construction
• greenroofs

COREFLEX XP: COREFLEX XP offers the same installation and performance benefits as COREFLEX 60, but features XP technology, the latest innovation in active waterproofing. This advanced polymer technology provides exceptional performance in a wide range of ground contaminants, including high-salinity conditions. COREFLEX XP should be used with other XP detailing products: COREFLEX XP, SEAL-X XP, and WATERSTOP XP.

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Setting the standard for waterproofing membrane strength, durability and performance for more than 50 years.

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