A Firestop or Firestopping
is a fire protection system made from specific mechanism used to seal openings
and joints in fire-resistance rated wall and/or floor assemblies, on other word
Firestopping is a Passive Fire
Protection system installed to prevent the movement of flame or gases to
other areas of a building through small concealed spaces in building components
such is floors, walls, and stairs.. Firestops are designed to re-establish the
fire-resistance ratings of wall and/or floor assemblies by delaying the spread
of fire by filling the openings with fire-resistant materials. Unprotected
openings in fire separations cancel out the fire-resistance ratings of the fire
separations, allowing the spread of fire, usually past the limits of the fire
safety plan of a building. Firestops should be maintained in accordance with
the listing, approval use, and compliance.
At Fire Security Systems, we supply several Firestopping products
dependent on regional applications. We supply the Fire Security Systems Range, specializing in EN and BS476
approvals.
Let’s understand one of
the products called FS20 Firestop Mortar
compound: (Firestopping)
FS20 Firestop Compound
is used to provide a fire rated seal around service penetrations in fire rated
walls and floors. Tested in accordance with BS 476, Fire Security Firestop
Compound provides approx. up to 6 hours fire protection. Here are some of the
benefits of FS20 Firestop compound:
·
It
comes with smoke seal & good acoustic insulation
·
Very
simple installation
·
Comes
with load bearing seal
·
It
is suitable to make good around most types of service penetrations
·
It
remains unaffected by humidity
·
Compound
is completely maintenance free
·
Also
comes no smoke emission attitude
Fire protection time
varies depending on the application of mortar. If FS20 Firestop mortar’s
thickness is 75mm then it offers fire rating of 1 – 2 hours and if thickness is
100mm then, fire rating should be around 3 – 6 hours.
FS20 Firestop Compound
is a specially formulated gypsum based mortar, which is mixed with
water to be troweled or poured around service penetrations. Plastic pipework must be
protected with either Fire Security Firestop Collars or Intumescent Pipe Wraps.
In floors, permanent formwork panel (50mm) is cut and friction fitted between
services and the edges of the floor slab. FS20 Firestop Compound is then
trowelled over the form work to a depth of 25mm thick. This is allowed to
harden. The FS20 Firestop Compound is then mixed to a pouring grade and tops
the seal up to the required depth. In walls, FS20 Firestop Compound is mixed
into a stiff consistency for trowelling into smaller openings. In larger
openings, FS20 Firestop Compound can be cast into blocks which can be built
into walls.
Normally most of the
newly constructed buildings are being made with fire walls to help protect the
buildings from fire. It helps in stopping the fire spread out to other areas of
building. It is not guaranteed to stop them though but of course the damage
will be less.