Building drainage systems have to be designed and installed in such a way that ensures that a fire cannot spread to an upper floor or across to a neighbouring flat. The critical areas are those points where the pipes are routed through ceilings and walls. The systems that protect these feed-throughs are therefore inspected as part of fire protection tests.
Perfectly sealed off
With pipe feed-throughs in concrete floors, a Geberit fire protection sleeve is placed around the discharge pipe and attached to the floor from below. Where pipes pass through a wall, such sleeves have to be attached from both sides. At temperatures in excess of around 150 °C, the sleeve’s intumescent material swells up. As plastic discharge pipes start melting or even burning relatively quickly when there is a fire, this intumescent material can tightly seal off the feed-throughs in the ceiling or wall before fire and smoke spread to other rooms or floors.