Smoke leakage (S): The duct shall not Have a very leakage exceeding five m³/h per one m² of interior surface spot. This shall be associated with the floor space of your duct with the perforated plate to the end in the duct through the inlet nozzles. Pressurisation ducts must be https://fireresistingductworkinsu01334.actoblog.com/37653543/the-single-best-strategy-to-use-for-fire-resisting-ductwork-insulation