Fire safety - Fire Resistance

Last updated on Tue, 10/02/2012 - 14:48

Many buildings are not protected enough against fire hazards. It means that fire can spread rapidly, can destroy the building and the properties in a few hours and jeopardize the occupants’ lives.

When a fire breaks out, the first objective is to slow down its spreading both horizontally and vertically.

Drainage systems must be selected so that they resist the passage of fire and do not feed it.

Fire resistance - It is a construction component's ability to withstand fire for a given period of time and to retain its serviceability in the event of fire.

Waste water drainage systems and fire stopping requirements

Drainage systems passing through structures designed to withstand fire, should not provide open breaches. For a given time, specified in the applicable Regulations, they should not allow the passage of fire, smokes, heat or combustion products from one compartment to the other.

For plastics, the fire-stopping rule consists in "plugging the hole". This function is ensured by the fire collars recommended by the manufacturers. Unlike cast iron, plastic materials which are highly sensitive to heat will not withstand the fire, will not remain in place, even in the case of a contained fire.

As shown by laboratory tests, if the fire collars are not activated or do not operate correctly, and depending on the type of plastic material, the greatest hazard is posed by combustion products (flaming droplets) or smokes.*

SAINT-GOBAIN PAM's solutions

SAINT GOBAIN PAM cast iron, non-combustible material has a melting point over 1000°C.
SAINT-GOBAIN PAM carried out a non-exhaustive series of tests on its cast iron pipe systems in order to offer precise guidance for fire resistance. For most configurations, exist protections made of mineral wool. With the active fireproof solution PAM-Protect combined with a fireproof mortar to seal walls and slabs, PAM cast iron pipe systems proved to meet integrity and insulation requirements up to 240 minutes (4 hours).
A full report has been published.

SAINT-GOBAIN cast iron is non-combustible, it does not feed the fire, nor gives off either gases or smokes liable to delay fire fighters or damage other equipment.

* Furnace tests carried out in 2011-2012 according to EN 1366 -3 at the EFECTIS testing centre, the European leader in fire science, engineering, tests, inspection and certification