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The thermal insulation is structurally separated from the weathering layer and can continue to perform its intended function.\n",{"id":347,"content":348,"type":338},"9d0b6717-29e2-41d0-8cfb-5148decc74ae",{"headline":349,"text":351},{"content":350},"What matters in design",{"content":352},"Performance does not result from the cavity alone. Air inlet and outlet openings, free cross-sections, cladding joints, the position of the insulation and structural restrictions must be coordinated. Fire barriers or substructures must not interrupt the intended airflow without being considered in the design. Interfaces at windows, plinths and parapets also require clearly defined water drainage.\n\nRear ventilation does not replace a proper thermal, fire or moisture protection assessment, nor carefully designed details. It is one element of the overall building-physics concept of a ventilated rainscreen façade. 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