|
|
|
|
Up to 240
minutes stability, integrity and
insulation cladding sheet metal ducts.
Fire resistance (BS 476: Part 24: 1987)
|
Board thickness
(mm) |
Dimensions of duct
(mm) |
Rock wool
(thickness x density) |
Stability &
integrity
(minimum)
|
Insulation
(minimum) |
|
240 |
- |
25 |
Up to
6000 wide x 1500 high |
- |
|
240 |
240 |
25 |
Up to
6000 wide x 1500 high |
100mm x 100kg/m³ |
|
120 |
- |
16 |
Up to
6000 wide x 1500 high |
- |
|
120 |
120 |
16 |
Up to
6000 wide x 1500 high |
50mm x 100kg/m³ |
|
120 |
120 |
19 |
Up to
6000 wide x 1500 high |
50mm x 80kg/m³ |
|
60 |
60 |
16 |
Up to
6000 wide x 1500 high |
35mm x 45kg/m³
or 25mm x 50kg/m³ |
|
|
MONOLUX®
40 boards, thickness in
accordance with the table above. |
|
Galvanised steel hanger support
system, maximum stress levels
should not exceed 15N/mm². |
|
Galvanised steel angle at
corner, 50mm x 50mm x 0.6mm. |
|
Steel
channel support folded around at
610mm centres, 50mm x 35mm x
0.6mm. |
|
Mild
steel angle support at 1220mm
centres, 40mm x 40mm x 5mm. |
|
Rock
wool packing to fill penetration
seal gap between MONOLUX®
duct cladding and compartment
wall or floor. |
|
Rock
wool, 25mm thick x 50kg/m3. |
|
MONOLUX®
40 boards forming collar at any
penetration through wall or
floor, minimum 100mm x 100mm x
19mm thick. |
|
Self
tapping screws at 200mm centres. |
|
Compartment wall or floor. |
|
|
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60 minute
insulated cladding enclosure
|
|
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* For more detail, roll your
cursor over the individual
numerals in the above drawing.
Note:
Additional items for
consideration where
ducts exceed 2000mm
width or 1500mm depth:
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