Can I block the smoke shaft?

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Blocked smoke shafts

Can cause major delays

Please ensure that smoke shafts are free from obstructions and with a maximum leakage rate of 3.8m3/hr/m2 @50Pa in line with the requirements of BS EN 12101-6:2005. Installers need to visually inspect the smoke shaft for holes or blockages before installing the dampers.


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