Building drainage systems designed with safety in mind protect lives by preventing a fire from being able to spread to an upper floor or across to a neighbouring flat. With pipe feed-throughs, Geberit fire protection sleeves help. These are placed around the discharge pipe and attached to the floor from below. At temperatures in excess of around 150 °C, the sleeve’s intumescent material swells up, sealing the feed-through before fire and smoke spread to other rooms or floors.