Recessed
ceiling fans and ventilation ducts are widely used in
both domestic and commercial buildings. Ceilings are
subject to fire regulations and must be fire protected
in accordance with Approved Document B of the Building
Regulations.
Once a hole is made in the ceiling for a polymeric fan
or vent, the integrity of the construction and its ability
to perform in a fire is reduced significantly. This
must be firestopped to reinstate the original fire rating
of the ceiling.
The popularity of forced / controlled ventilation is
on the rise as it can be more energy efficient than
traditional ventilation methods. The use of centralised
ventilation units and heat recovery units results in
the building being subjected to penetration holes both
horizontally and vertically through the structure, creating
pathways for the passage of both fire and smoke.
Unlike downlights, which are generally all fire protected,
fans and vents are often left unprotected. A 100mm diameter
fan of vent has several times the open area of a downlight
and does not even have a metal 'can' to slow the spread
of fire. This coupled with the ability of the fire to
move all around the building via the ventilation system,
makes it ever more important to fire protect all ceiling
mounted fans and vents.
Key Features &
Customer Benefits
Restores
and maintains integrity of 30 & 60 minute fire
rated ceilings.
Sleeve
fits in seconds.
No
mastic, screws or support required.
Sleeve
is invisible once fan / vent is fitted.
Sleeve
is light weight and can be fitted from above or below
the ceiling.
Easy
to retro fit into existing fans / vents.
Provides
and effective acoustic barrier between fan / vent
and ceiling.
TEST
DATA
30
Minute Plasterboard / Timber Ceiling.
Duration of effective protection - 36 mins
Test standard - BS476 Part 21
Test number - Chilt/IF06015
60 Minute Plasterboard / Timber Ceiling.
Duration of effective protection - 72 mins
Test standard - BS476 Part 21
Test number - Chilt/IF06021
FF109
RECESSED CEILING FAN AND VENT SLEEVES
The
FIREFLY 109 sleeve has been developed to provide maximum protection
for holes created by the introduction of the most popular sizes
of polymeric recessed ceiling fans and vents with minimal installation
time. In a fire situation, the sleeve expands internally to crush
the spigot of the fan / vent and create an effective barrier against
both heat and flames. Unlike other "intumescent" materials
the FIREFLY 109 Sleeves do not need additional support and will
only expand inwards.
Fitting
Instructions
Step
One
Use OD of sleeve as template and cut a hole in ceiling to
provide a snug fit.
Step
Two
*Place sleeve and spigot extension, if required, onto the
fan / vent spigot.
Step
Three
Attach flexible hose to spigot.
Step
Four
Ease the fan and sleeve into the ceiling cut out and locate
with rigid ducting if required. Attach fan / vent to ceiling
in the normal way.
To
ask questions or receive information about the Ceiling Fan and
Vent Sleeves, please use the form below.
