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Free tool · SANS 10400-XA deemed-to-satisfy

SANS 10400-XA R-Value Compliance Checker

Every new building in South Africa must prove energy compliance for plan approval. Pick your town, build up your roof or wall, and see whether it meets the deemed-to-satisfy R-value for your climatic zone — and exactly how much insulation closes the gap.

1 · Your building

Deemed-to-satisfy route (SANS 10400-XA via SANS 204).
Climatic zone: –
mm
Assistive, not a compliance certificate. This tool applies the SANS 10400-XA deemed-to-satisfy minimum R-values for the roof/wall element only — it does not assess fenestration, floors, orientation, thermal bridging or the rational-design route, and base-construction R-values are indicative. The required values are the published deemed-to-satisfy figures. Confirm final compliance with a competent person and the current SANS 10400-XA:2021 / SANS 204. Figures may be edited to match your assessment.
Technopol SA (Pty) Ltd · info@technopol.co.za · +27 11 363 2780 · A free planning aid — not a substitute for a rational assessment by the responsible professional.