
2.8
BALANCED FLUE IN VERTICAL CONFIGURATION (FLAT ROOF)
2.8.2
Determine the position of the flue run within the property and the
termination position is correct in accordance with BS 5440. Ensure that
clearances to combustible surfaces (50mm minimum) are sufficient
where the flue run may come within close contact of joists etc.
2.8.3
For a flat roof installation the following components will need to be
ordered from Metaloterm :-
USMPG10
Mounting plate
USKB10
Locking band
US100-10/50-10/25-10
Concentic flue - quantity required
dependent upon flue height required
USDP10
Flat roof flashing
USSR10
Storm collar
2.8.4
To install the flue system therefore, make hole in roof, install the
mounting plate (USMPG10) underneath the roof and secure with
screws. (See Fig. 13 below)
2.8.5
Place a locking band (USKB10) in the mounting plate (USMPG10)
Put the concentric flue US100-10/50-10/25-10 through the mounting
plate and locking band until it protrudes by 400mm min, 1000mm max
through the roof. Fix the flat roof flashing (USDP10) over the flue and
fix it to the flat roof. See Fig. 13 below. Please ensure all joints are
taped with suitable high temperature tape when assembling the flue
pipe sections together.
2.8.6
Seal the opening between the flue and flashing with silicone rubber and
a storm collar (USSR10). See Fig. 13 below
2.8.7
Install the terminal (contained within the terminal kit requested at point
of order from BFM Europe Ltd.) with a locking band and fix with 3 nuts.
2.8.8
Finish the roof covering over the flashing and weatherproof. Refer to
section 3.3 to fit the correct restrictor plate to the fire.
Fig. 13
16
Terminal
Flashing (USDP10)
Concentric flue
Mounting plate
(USMPG10)
Storm collar
(USSR10)
Concentric Flue
Protrudes 400mm
minimum, 1000mm
maximum through
roof