H1 Assist

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Methodology: NZS 4214:2006 parallel-path construction R-values; H1/AS1 6th edition §2.1.2.6–2.1.2.11 calculation method. Each element category sums Area/R across every distinct construction segment, matching H1's own additive maths.

H1 Assist, brought to you by Enveloped Solutions Limited.
This tool provides an indicative, preliminary estimate only and is not a producer statement, a certificate of compliance, or a substitute for assessment by a suitably qualified person (e.g. a Licensed Building Practitioner, architect, or engineer). It has not yet been independently verified against the official BRANZ Calculation Method Tool, so all figures should be checked carefully before being relied on for a building consent application. Product mentions reflect nominal thermal performance only — nothing here is pricing, and nothing here should be taken as legal, engineering, or building-consent advice. Enveloped Solutions Limited accepts no liability for decisions made in reliance on this tool's output.