The REHAU RAUTITAN and RAUTHERM Piping Systems have been appraised for use as the piping components for water supply as per the scope of New Zealand Building Code (NZBC) Acceptable Solution G12/AS1, and Verification Method G12/VM1 and as piping for hydronic heating systems including in-floor systems.

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In the opinion of BRANZ, the REHAU RAUTITAN and RAUTHERM Piping 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[a] not less than 50 yrs, B2.3.1[b] 15 yrs and B2.3.1[c] 5 years. The REHAU RAUTITAN and RAUTHERM Piping Systems meet these requirements. See Paragraphs 9.1 - 9.6.
• Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. The REHAU RAUTITAN and RAUTHERM Piping Systems will meet this requirement and not present a health hazard to people.
• Clause G10 PIPED SERVICES: Performance G10.3.1[a]. The REHAU RAUTITAN and RAUTHERM Piping Systems contribute to meeting this requirement when used in heating systems. See Paragraphs 9.1 - 9.5.
• Clause G12 WATER SUPPLIES: Performance G12.3.2[c]. G12.3.3, G12.3.4 and G12.3.7 [a] and [b]. The REHAU RAUTITAN Piping Systems contribute to meeting these requirements. See Paragraphs 12.1 - 12.4.

This is an Appraisal of an Alternative Solution in terms of New Zealand Building Code compliance.

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• Residential and commercial plumbing — ideal for multi residential or stand-alone housing applications
• Suitable for use with REHAU RAUTITAN PE-Xa 16 or 20mm hot or cold water pipe
• Ideal for installation into tight, dark spaces
• Can be used in conjunction with REHAU’s compression sleeve technology with REHAU RAUTITAN PE-Xa pipe systems

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• NZS 2537.2:2011 (WaterMark Certificate 001412)
• AS/NZS 4020: 2018

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