Smoke leakage (S): The duct shall not Possess a leakage exceeding five m³/h for every 1 m² of inside area location. This shall be connected to the surface spot of your duct from your perforated plate to the top of the duct from the inlet nozzles. Pressurisation ducts must be https://fire-resisting-ductwork-i46788.blogolize.com/not-known-factual-statements-about-grease-tight-extract-ductwork-76039520