Verifying the compliance of design choices with safety and thermal regulations.
Before discussing the 2021 evaluation, one must understand the authority of the . Based near Paris, the CSTB is France's official scientific and technical center for building. A CSTB Technical Appraisal (Avis Technique) or Technical Evaluation (ATE) is the gold standard for innovative construction products. It validates:
The software allows users to bookmark sections, add personal annotations, and export text for inclusion in technical specifications or CCTP (Cahier des Clauses Techniques Particulières) documents.
marks the fourth evolution of this design. Earlier versions (V1–V3) were tested in labs and small field trials. V4 incorporated lessons from those tests: steeper seaward slopes, a wider crest, and strategically placed gaps to prevent scouring at the reef’s base.
For those looking to purchase or renew access, the CSTB Boutique remains the official source for the Reef product range, including Premium and Collection DTU versions. Search a document - CSTB