T H E
M A S T E R
O F
A L L
B O A R D S
B Y
Masterboardfi is manufactured
under a quality management
system certified in accordance
with ISO 9001.
Masterboardfi is a calcium silicate board reinforced with selected fibres and fillers.
It is formulated without asbestos or any other inorganic fibres. It does not contain
formaldehyde. The board is semi-compressed and cured in a high pressure steam
autoclave. This provides the board with high dimensional and chemical stability,
accompanied by low alkalinity. Masterboardfi is a versatile building board suitable
for use in a wide range of internal and semi-exposed external applications. It is offwhite in colour and has a smooth finish on one face with a slightly textured reverse.
Masterboardfi is plain or perforated (to order). It can be easily decorated with paints,
wallpapers or tiles, or left in its natural state if preferred.
The information in this document
is issued in good faith. Intumex
Asia Pacific can accept no
responsibility for omissions or
errors in content or interpretation. Intumex Asia Pacific
has a policy of continuous
improvement and reserves the
right to change specifications,
designs and products at any time
without prior notice. Local
authorities must be consulted
for compliance with local
building fire regulations.
© 2003 Intumex Asia Pacific Pte. Ltd.
I
N
S
I
D
E
ABOUT THE BOARD
Page 2-3
FOR CEILINGS
Page 4-7
FOR PARTITIONS
Page 8-11
SEMI-EXPOSED EXTERIAL APPLICATIONS
Page 12-15
OTHER CONSTRUCTIONS
Page 16-23
WORKING WITH THE BOARD
Page 24
DECORATING THE BOARD
Page 25
HEALTH & SAFETY / HANDLING & STORAGE
Page 26
TECHNICAL PROPERTIES
Page 27
Masterboardfi
THE WELL KNO
2
F I R E
P E R F O R M A N C E
I N S U L A T I O N
FLEXIBLE COMPATIBILITY
Masterboard is non combustible when tested in
Masterboard can provide a degree of thermal
accordance with the criteria of BS 476: Part 4: 1970.
insulation, depending on system and product
Masterboardfi is compatible with most commonly
used building materials. Masterboardfi will not
cause corrosion (it is alkali in nature), it is non
caustic, and does not cause any adverse reaction
when in contact with bituminous materials.
Masterboardfi can be decorated using most
commonly available materials.
fi
This product is also classified as a Class ‘0’ material
T H E R M A L
fi
thickness. Masterboardfi provides an ideal support
for thermal insulation materials, and is resistant to
in accordance with Building Regulations Definitions.
continuous operating temperatures up to 80 C.
BIOLOGICAL PERFORMANCE
E
Masterboardfi has a high pH, it is immune to attack
from insects or vermin. Masterboardfi will not
support mould or fungal growth. Masterboardfi is
non toxic and does not emit smoke or toxic fumes
under fire conditions.
Masterboardfi is flexible yet robust, it is easily worked
using conventional wood working tools. Boards can be
nailed or screwed into position, depending on substrate.
For most instances, pre-drilling is not required provided
fixings are a minimum of 50mm from corners and 12mm
xxxxxxxxxxxxxxxxxxfrom board edges.
A
S
Y
T
O
U
S
E
WN FACTS
DIMENSIONAL
STABILITY
Masterboardfi has good dimensional stability and is
eminently suitable for use in areas of high humidity.
It can withstand both high temperatures and
frequent temperature changes. It has very low
movement in relation to temperature changes.
E F F E C T
O F
M O I S T U R E
Masterboardfi is resistant to the effects of moisture,
will not physically deteriorate when used in damp or
humid conditions. It will absorb water causing some
loss of strength, which is fully recovered on drying.
Moisture will not cause leaching or efflorescence
and has no permanent effect on the board.
C H E M I C A L L Y
B A L A N C E D
Masterboardfi is resistant to brine and dilute chlorine
solution, resistant to low concentrations of most
acids and alkalis. Surface pH value of Masterboardfi
is between 7 to 10.
EXCELLENT
DURABILITY
The base of Masterboardfi contains no water
soluble additives. Under normal conditions,
un-decorated Masterboardfi will not degrade, rot
or deteriorate physically.
Masterboardfi
FOR CEILING
A proven high performance
material for your ideal ceiling
systems, Masterboardfi is
widely used in both concealed and exposed grid
ceiling systems.
4
FOR
CEILINGS
Masterboardfi
Masterboardfi can be installed as full size sheets, giving
architects and designers the ultimate solution for achieving
smooth, flush joints.
The unique formulation of Masterboardfi results in a material
that is lightweight and has high performance in terms of
moisture resistance and dimensional stability.
Curved ceiling construction
S
In the event of a leakage above
the ceiling, Masterboardfi panels
will allow water to pass through,
indicating that a leak has
occurred. The wet panels will
have a slightly reduced flexural
strength, but full strength will be
regained once they are allowed
to dry out. The dried panels can
be reinstalled once leakage has
been repaired. Any staining on
the panels caused by the leakage
can be easily resolved by
painting over.
Masterboardfi offers versatility in
ceiling designs. The inherent
strength and flexibility allows
the board to be bowed to achieve
a curved ceiling without flexing
back or breakage of the material.
Simply cutting Masterboardfi to
a desired shapes and size can
create inventive ceilings with
circular, stepping effect. Holes
can be punched to incorporate
down lights for better effects
and atmosphere. Strong and
contrasting colours can also be
used to enhance the ceiling.
Masterboardfi is easy to install and can be left un-decorated
without risk of deterioration. The material is moisture tolerant
and will demonstrate minimal sag, even when used in high
humidity environments.
Concealed grid suspended ceiling
system with expressed joints
Architectural ceiling
Masterboardfi
SUSPENDED
CONCEALED
GRID
&
CONCEALED
CEILINGS
CEILING
The Masterboardfi concealed grid comprises
standard galvanised steel sections. The system is
composed of primary channel sections, at maximum
1800mm centres, supported from the substrate
using steel strap hangers. To the underside of the
primary channels are fixed galvanised steel furring
sections (MF sections) positioned at nominal 610mm
centres. The Masterboardfi is fixed to the MF sections
using screws at nominal 300mm centres. It should be
noted that centres of the primary channel sections
and the hangers are dependent on a number of
factors, e.g. span of channels, centres of hangers,
weight of cladding systems etc. Please consult
Intumex Asia Pacific for precise installation details.
Masterboardfi can be supplied with tapered edges to facilitate joint filling to provide a smooth soffit, or with bevelled edges to
provide shadow line features.
TIMBER
JOISTED
CEILING
Masterboardfi can be installed directly to the
underside of timber framed ceilings. The
Masterboardfi is nailed or screwed to the
joists. A 50mm x 50mm timber noggin should
be positioned as backing to the transverse
joints. Masterboardfi can be supplied with
tapered edges to facilitate joint filling to
provide a smooth soffit.
For fire resistant constructions, please consult
Intumex Asia Pacific for pertinent fixing details
and minimum joist dimensions, centres etc.
EXPOSED
GRID
CEILING
Masterboardfi can be used as the infill panel to
decorate exposed grid ceiling systems, and
can be used as part of a system for acoustic or
thermally efficient ceiling construction.
Masterboardfi can be used in panel
dimensions of 595mm x 595mm (for a
600mm grid) or 1195mm x 595mm (for a
1200mm x 600mm grid) without risk of
sagging etc occurring.
6
SUSPENDED
&
CONCEALED
Masterboardfi
CEILINGS
ALTERNATIVE
CONCEALED
GRID
(1)
When using a concealed grid system,
Masterboardfi can be secured to the furring
(MF) channels using No.8 self-tapping screws
at 300mm centres.
The furring channels run at 610mm centres
and can be secured to the primary channels
using a clip holder.
ALTERNATIVE
CONCEALED
GRID
(2)
Board joints should coincide with framing
sections, additional framing may need to be
introduced to coincide with transverse joints.
This is especially important where tapered
edges are employed to facilitate joint filling for
a flush finish. Failure to fix all board edges
correctly could result in joint fillings showing
hairline cracks. Perimeter edges can be
finished with angles or beads for aesthetic
purposes.
For full size boards, 2440mm x 1220mm,
framing generally required at nominal 610mm
centres. Please consult Intumex Asia Pacific
for precise installation details.
EXPOSED
GRID
(LAY-IN)
Masterboardfi is eminently suitable for use in
areas of intermittent high humidity, and can be
used in lay-in grid systems without risk of the
boards sagging. Care should be taken to
match the requisite panel dimensions,
length/width, to a thickness commensurate
with the flatness tolerances required, e.g. the
larger the panel dimension, the greater
thickness is required. In general a 1200mm x
600mm or 600mm x 600mm grid presents
no problems.
7
Masterboardfi
FOR PARTIT
Flexible and
lightweight
systems that
are faster to
construct
and practical
for today s
buildings.
8
TIONS
FOR PARTITIONS
Masterboardfi
Masterboardfi partition systems offer
many benefits over conventional
masonry. Whether it is new
construction or refurbishment,
Masterboardfi partition systems offer
greater flexibility in construction and
relocation. Unlike conventional
masonry, they are faster to construct
and hence reduce delay to other trades.
Because it weighs less than twenty
percent of a conventional masonry wall,
the system reduces the building dead
load. The system is also slimmer and
the reduced thickness allows for more
rentable space, which in turn increases
the rental income potential.
Semi exposed external wall system
Masterboardfi is ideal for use in
areas which are permanently
damp or humid, such as wash
rooms, kitchens or semi-exposed
locations.
Masterboardfi is a non-combustible
material to BS 476 : Part 4 : 1970
thus can be used for construction
of a half-hour and one-hour fire
rated partition systems.
Masterboardfi can be supplied
with tapered edges to facilitate
joint filling where a flush finish is
required.
The unique characteristics of autoclaved calcium silicate mean that
Masterboardfi without special treatment
is naturally moisture tolerant. Hence,
the partition can be constructed early
before wet trades are finished and
even before the building is weather
tight. Wet trades can be continued
without fear of damaging the partition.
External wall system
(internal view)
Masterboardfi
TIMBER
STUD
INTERNAL
PARTITIONS
FRAMING
Details of annotations:
M 6mm thick Masterboardfi
N 60mm thick x 20 kg/m3 mineral wool
(optional)
O Mineral wool padding underneath
(optional)
P 50mm x 63mm softwood timber studs
at 610mm centres
Q Minimum 50mm x 63mm softwood
horizontal timber at 2440mm centres
R 38mm long nails at 200mm centres or
25mm screws at 300mm centres
S Non combustible fixings at nominal
500mm centres
Timber stud framing can be quickly and easily
installed to create partitions for heights in
excess of 20m without the problems
sometimes associated with steel stud
constructions. The dimensions of the timber
studs should be such that they will adequately support the required loadings,
including any internal wind loads which may
be present in high bay warehouses for
example. See BS 5268 for details.
All framing should be constructed using dry,
straight sections of timber. The vertical studs
are of nominal 610mm centres, with horizontal
noggins at 2440mm centres, i.e. to coincide
with the horizontal joints between the boards.
10
The top and bottom plates should be secured to the substrate
using non combustible fixings at nominal 500mm centres. The
Masterboardfi can be nailed or screwed to the framing. Predrilling of the boards is not a pre-requisite, provided fixings are
at least 12mm from the edges of the boards, and at least
50mm from the corners.
Masterboardfi can be used for the construction of fire resistant
partitions for up to 60 minutes integrity and insulation. Mineral
wool infill is required for these applications.
Masterboardfi partitions can be used for the construction of
acoustic walls.
Please consult Intumex Asia Pacific for details of the board
thickness and cavity infill materials to provide the requisite
performance.
INTERNAL
Masterboardfi
PARTITIONS
STEEL
STUD
FRAMING
Details of annotations:
M 9mm thick Masterboardfi
N 60mm thick x 23 kg/m3 mineral wool
(optional)
O 35mm x 48mm x 35mm x 0.5mm thick
vertical steel studs at 610mm centres
P No.8 self-tapping screws at 300mm centres
Q Steel channel section fixed to substrate
using non combustible fixings at nominal
500mm centres.
NOTE: The above framing dimensions are
suitable for partitions up to 3000mm in
height. For constructions in excess of this,
please consult Intumex Asia Pacific for
minimum frame specification.
Masterboardfi steel stud partitions can be constructed for
heights in excess of 12m, provided attention is paid to selecting
the correct dimensions of steel studs. Where partitions are
required to withstand additional requirements e.g. high impact
within warehouse environments etc, these additions should be
taken into account when selecting your framing sections.
The top and bottom channels should be fixed to the substrate
using non combustible fixings at nominal 500mm centres. If the
substrate is uneven, a mineral wool gasket can be placed
between the substrate and the face of the channel framing
members.
In general, the vertical studs are positioned at
610mm centres. For extreme or aggressive
environments it may be necessary to reduce
these centres to provide additional support
against impact etc.
Masterboardfi can be used for the construction
of fire resistant partitions for up to 60 minutes
integrity and insulation. Mineral wool infill is
required for these applications. In addition, the
Masterboardfi partitions can be used for the
construction of acoustic walls.
Please consult Intumex Asia Pacific for details
of the board thickness and cavity infill
materials to provide the requisite performance.
11
Masterboardfi
SEMI-EXPOSED EXTERNAL
APPLICATIONS
The good dimensional stability
of Masterboardfi makes it an
excellent product in such
applications. Changes in
temperature or humidity will
not cause swelling, shrinking
or warping of the board.
12
F O R
E A V E S
&
Masterboardfi
S O F F I T S
Masterboardfi is moisture resistant and will
not deteriorate in wet or humid conditions. In
semi-exposed applications such as eaves,
soffits, gable overhangs, porches, awnings
and canopies, the continuous exposure to
atmospheric moisture does not permanently
affect its physical properties.
Masterboardfi is lightweight for easy
handling and installation. It can also be cut or
drilled using conventional wood-working
tools. The boards, when left un-decorated,
will not degrade, rot or deteriorate physically.
If painting is required, it can
be applied directly without
the need for special
preparation such as an
alkaline resistant primer.
Where large areas of
external soffits are to be
butt jointed, expansion
joints must be provided
at 4200mm centres to
allow for movement of
the building.
Fascia boards
Gable linings
F O R B A C K I N G
P A N E L S
Masterboardfi has also
been used as a backing to
vitreous enamel and
porcelain enamel panels
for many years. Bonding
Masterboardfi to the back
of the panel ensures
that these panels remains
flat. Masterboardfi will not
warp, swell or decay
unlike most plywood or
gypsum boards.
Backing to architectural wall
EAVES
&
SOFFITS
Masterboard fi has a
greater resistance to
moisture than most
plywood and gypsum
boards. Hence, it
becomes a natural choice
of material to be used in
continually damp environments such as underground tunnels and
railway stations.
Masterboardfi
13
Masterboardfi
SOFFIT
APPLICATIONS
CONSTRUCTION
Masterboardfi is widely used in semi-exposed
applications such as eaves and soffits. The
moisture resistance and dimensional stability
are the key criteria in selecting the right board
for such applications.
Secure galvanised steel angles or timber
battens securing to the masonry wall and
fascia board. Cross-battens or furring
channels are used and fixed to the L-angle at
610mm centres, these are only required
where the width of the board exceeds 400mm.
14
SEMI-EXTERNAL
A 9mm thickness of Masterboardfi is recommended in this
application. The board should be fastened to the angles/furring
channels/timber battens using No.8 self-tapping screws at
300mm centres.
To allow for structural movement, an expansion joint should be
used in accordance to the architects’ recommendation.
SEMI-EXTERNAL
Masterboardfi
APPLICATIONS
ROOF
TILE
UNDERLAY
Masterboardfi is widely used as underlay to roofs, in
order to provide a non combustible lining over rafters
which will assist in preventing fire spread.
The Masterboardfi should be laid over the rafters and
secured in position by use of nails into the rafters. If
roofing battens are being used, the Masterboardfi only
needs tacking into position as the batten fixings will
properly secure the board when they are applied. If
battens are not being used, then the Masterboardfi
underlay should be fixed using nails at 300mm centres.
Ideally all joints between boards should coincide with
rafter positions to prevent sagging at the joints, Cross
noggins at transverse centres are not necessary unless
the rafters exceed 900mm centres. It should be noted
that Masterboardfi is NOT a loadbearing material and
thus is cannot withstand foot traffic. Use crawling boards
or keep to the roof battens.
EXTERNAL
WALL
SHEATHING
Masterboardfi is an ideal solution for providing
sheathing to the external walls of timber frame
constructions. The Masterboardfi is unaffected by
moisture and will not rot, degrade or support
mould or fungal growth.
Masterboardfi can also provide racking strength
where required, the loading dependent on board
thickness and nail patterns used.
Masterboardfi should be used in conjunction with a
proprietory vapour barrier to ensure condensation
problems can be avoided.
The Masterboardfi is simply nailed or screwed to a
timber framing, which is composed of stud
dimensions appropriate to meet the requisite
loadings. Maximum framing centres 610mm,
maximum fixing centres 300mm.
Overcladding with timber or fibre cement sidings is
possible, simply affix the sidings through the
Masterboardfi , into the timber framing, in
accordance with the siding manufacturers’
recommendations.
15
Masterboardfi
OTHER
CONSTRUC
16
Masterboardfi
CASING FOR PIPES & SERVICES
Masterboardfi can be used for boxing-in
hot and cold water pipes, boiler flues, and
waste piping as well as electrical and gas
services. Casings can be easily and neatly
constructed using Masterboardfi fixed to
timber battens or to metal corner angles.
The edges of the boards can be planed, or
sanded to form neat edge and tidy corner
joint. Joints can be filled and sanded to
provide a smooth finish.
WET AREAS/
TILE BACKER
Masterboardfi is ideal as a backing
board for tiles in showers, bathrooms,
kitchen and utility rooms where
moisture can cause problems.
The board has good strength even
when saturated with water and the
tiles remain firmly bonded and will
not detach.
INDUSTRIAL & WALL LININGS
TIONS
Masterboardfi is an ideal lining
material for any industrial building. It
is lightweight and has high light
reflectance (about 65% for undecorated board). It has high
moisture resistance and can be
installed to provide a smooth
surface, improve insulation, overcome problems of damp in
renovation work and as support for
thermal insulation.
Masterboardfi can assist in condensation control
because it can absorb up to about 60% of its own weight
in water without dripping, particularly in areas where
steam is produced. Masterboardfi is non-combustible
and will withstand continuous temperatures up
to 80 C. It is therefore ideal as a backing or as a lining
to boiler cupboards.
Masterboardfi
CASING
FOR
OTHER
PIPES
&
SERVICES
Masterboardfi is fixed to timber battens or
steel angles to form the enclosure. The edges
of the board can be planed to give a neat
corner, or sanded to form a rounded edge.
Joints can be filled and sanded to provide a
smooth finish.
Mineral wool or fibre glass can be included
within the encasement to improve acoustic
properties and thermal insulation where
necessary.
CONCRETE/TIMBER
COLUMN
CLADDING
Masterboardfi is widely used as an
overcladding for concrete or timber columns or
framing sections.
Masterboardfi can be used to provide a
smooth surface to concrete work, ready for
decoration and hiding unsightly marks left on
the concrete from framework etc.
Depending on the thickness of board used,
Masterboardfi can be fixed directly to the
concrete, or to a transverse of light gauge
galvanised steel angles or channels. Please
consult Intumex Asia Pacific for further details.
Masterboardfi can also be used as a cladding to
timber framework, especially useful for areas
where a non combustible finish is required, or
where a Class 0 surface is specified.
Masterboardfi is also used to improve the
impact resistance of timber framing, in order
to avoid unsightly lumps be gouged out of the
wood etc. Masterboardfi can also be used to
enhance the fire resistance of timber columns
and beams etc. Please consult Intumex Asia
Pacific for details.
18
CONSTRUCTIONS
OTHER
Masterboardfi
CONSTRUCTIONS
CAVITY
WALL
FOR
SERVICES
Unlike
conventional
masonry,
the
Masterboardfi partition system allows for
flexibility of housing unsightly cables, pipes
and services within the cavity for improved
aesthetic appeal.
The Masterboardfi when mounted on furring
channels can also replace plaster or cement
rendering on masonry walls, allowing smooth
and seamless finishes, while providing cavities
for routing all services, thus eliminating messy
hackings.
CAVITY
WALL
WITH
SANITARY
FITTINGS
The inherent moisture resistance performance
of Masterboardfi makes it the ideal choice for
partitioning in toilets, bathrooms, kitchens and
other wet areas. The board can confidently be
used to conceal sanitary services.
Wherever sanitary fittings will be fixed to the
wall, it is advisable to incorporate additional
framing members behind the Masterboardfi , to
which the fittings will be fixed, thus the
framing is supporting the load, and not the
Masterboardfi . Please consult Intumex Asia
Pacific for details.
19
Masterboardfi
INDUSTRIAL
OTHER
&
WALL
LININGS
Masterboardfi can be used as an overcladding
onto masonry or concrete walls in order to
provide a smooth surface or decoration,
avoiding the need to apply a plaster or cement
render. The Masterboardfi can be supplied
with bevelled or tapered edges to facilitate
joint filling for a smooth surface finish.
The Masterboardfi is screwed to metal furring
sections, which in turn have themselves been
fixed to the substrate. For normal conditions,
the MF sections are positioned at nominal
610mm centres, and fixed to the substrate
20
CONSTRUCTIONS
using non combustible fixings at nominal 500mm centres. The
Masterboardfi is fixed to the MF sections using screws at
nominal 300 centres. For use in high impact areas or
aggressive environments, e.g. sports halls, it may be necessary
to reduce the centres of the MF profiles.
The cavity between the masonry and the Masterboardfi can be
filled with mineral wool to improve the acoustic and thermal
insulation, or the cavity can be used to run services.
OTHER
Masterboardfi
CONSTRUCTIONS
TILE
UNDERLAY
FOR
FLOORS
Masterboardfi can be used as a tile underlay for floors. The Masterboardfi
is applied to ensure the floor has a flat and level surface prior to laying of
floor tiles. The Masterboardfi should be fixed with nails or screws at the
following positions.
Around perimeter of the board, 75mm centres. Nails or screws must be
a minimum of 75mm from the corners of the boards, and 20mm from the
edge of the boards.
Once the perimeter has been fixed, apply nails or screws in a grid 150mm
x 150mm throughout the centre of the boards. For a panel 2440mm x
1220mm, this would provide a grid of 16 rows down the length of the
board (starting 20mm in from each end) and 8 rows across the board.
Tiles should be applied using adhesives, primers and application
methods as recommended by tile manufacturers as suitable for calcium
silicate boards.
21
Masterboardfi
WET
AREA
OTHER
USAGE
Masterboardfi is eminently suitable for use in
wet areas, its resistance to rot, mould or
fungal growth makes for an ideal solution
where a durable long lasting, hard wearing
backing board is required.
The following are just a couple of examples of
usage for Masterboardfi .
As an enclosure to sanitary units, bath
housings etc. The Masterboardfi can be simply
fixed to a framing consisting of light gauge
steel sections or timber framework. Once
installed the Masterboardfi is easily decorated.
If tiling is to take place, please refer to the
drawing on opposite page.
Masterboardfi , in 15mm or 20mm thickness,
makes an ideal base for vanity units, basin
enclosures etc.
The Masterboardfi used in this application can
easily be tiled to provide a clean and sanitary
environment with aesthetic appeal.
22
CONSTRUCTIONS
OTHER
Masterboardfi
CONSTRUCTIONS
WET
Masterboardfi can be applied over a steel or timber framework
as a tile underlay. When used in this application, the framing
should be at 400mm centres both vertically and horizontally.
fi
Use minimum 9mm thick Masterboard . Seal the front face
with watered down tile adhesive, and the back face with
chlorinated rubber sealer or PVA sealer at the weight of
150g/m2. Sheets must be dry when installed.
Fasten panels into position using 32mm long, No.8 stainless
steel screws. Ensure fixing centres are a maximum of 200mm.
Screw heads must be sunk below the surface of the boards.
AREA
USAGE
At corner and floor joints, bed Masterboardfi
into mastic to seal joints.
At all times, the tile and adhesive
manufacturers’ recommendations for tiling
onto calcium silicate board substrates should
be followed.
Do not have ceramic tile joints in line with
joints between sheets of Masterboardfi
except at movement joints.
At butt joints between sheets, no filling is required. At maximum
3660mm centres vertically and horizontally, expansion joints of
minimum 5mm width should be included through tiles and
boards. Support boards each side of such joints.
23
Masterboardfi
CUTTING
&
WORKING
SAWING
WITH
THE
BOARD
NAILING
Use a fine-toothed saw. For shaped cuts use a pad, keyhole or
coping saw. Work fair face up and support the board throughout. A
power saw can be used, with a tungsten carbide tipped blade.
When nailing, position not less than 12mm from board edge without
pre-drilling. Galvanised wire nails are recommended. Do not use lost
head nails or panel nails. Boards can also be stapled, but not for fire
resistance applications.
DRILLING
FIXING
Use a hand drill or high speed power drill (not the percussion type);
bits should have HSS tips. When drilling, always provide support to
the back of the board to prevent break out.
For non-fire resisting
applications, boards
should be supported at
610mm centres and fixed
to supports at 300mm
centres.
In normal areas, cross
noggins are required
only at board joints. If
increased impact resistance is required,
400mm support centres
should be used with
cross noggins at
1220mm centres.
PLANNING
&
SANDING
The edges of the boards can be planed or smoothed with a surform,
rasp or file. Use conventional papers for sanding.
24
SCREWING
When screwing, do not countersink 6mm boards. Pre-drilling is not
necessary. Use wood or self-tapping screws. Screws should be at
minimum of 12mm from board edges and 50mm from board corners.
DECORATING
THE
PAINTING
BOARD
&
Masterboardfi
PAPERING
TILING
Any conventional points can be used. Alkali resistant primers are not
necessary. Water based paints (with a watered down first coat) or oil
based paints can be applied to all products using proprietary
primer/top coat systems as recommended by paint manufacturers.
Minimum 9mm thick boards should fixed, textured side out.
Supports should be maximum 400mm centres with cross noggins
at transverse board joints. Seal the boards with P.V.A.
Countersunk
corrosion
resistant screws
should be used
to fix boards at
200mm centres.
Fix tiles in strict
accordance with
manufacturers’
recommendations.
When papering Masterboardfi , size to seal against suction and
improve slip, then hang papers or vinyl in the normal way.
PLASTERING
If a skim finish is desired, fix textured side out, apply a sealing coat
of universal primer and allow to dry. Follow with a second coat.
Apply plaster while this coat is wet and tacky. At all times strictly
follow plaster/jointing compound manufacturers’ instructions for
applying to fibre cement boards.
25
Masterboardfi
HEALTH
&
SAFETY
No special precautions are necessary in handling or working. When
power sawing or sanding in a confined space, dust extraction
equipment must be used to control dust levels. Care should be
taken to prevent injury from sharp edges and corners.
prevent any mis-use which could result in personal injury or damage
to boards. In the event of injury obtain proper medical treatment.
The materials and the packaging used for distribution do not
incorporate any substances considered to be hazardous to health.
Do not leave boards lying about on site, on scaffolding or in high
traffic areas, where risk of damage or injury is increased, and
Masterboardfi is NOT a loadbearing material and should not be used
to floor walkways, apertures in floors etc.
HANDLING
&
STORAGE
fi
Carry boards on edge, and do not drop on their corners. Masterboard should be stored under cover on a flat base, clear of the ground. If stored
in the open, the stack should be fully protected from the weather. If stored on racks, boards should be fully supported across their width at not
more than 1m centres. The following recommendations must be always taken into account when handling Masterboardfi .
26
LIFTING
PROTECTION
Always lift boards off the board below, never slide board on board
or drag the stack.
Boards should be stored under cover for protection against
inclement weather on a covered dry-level ground, away from the
working area of the mechanical plant.
STACKING
CARRYING
Boards should be a maximum of 800 high, on firm level ground. If
two or more pallets are stacked, the total stack height must be not
more than 3500mm.
Always carry the boards on edge but do not store on edge.
TECHNICAL
Masterboardfi
PROPERTIES
PROPERTIES
DESCRIPTIONS
UNITS
VALUES
Thickness
mm
6 / 9 / 12 / 15 / 20
Width*
mm
610 / 1220
Length*
mm
610 / 1220 / 1830 / 2440
Weight (approx.)
kg/m2
6 for 6mm board
9 for 9mm board
11 for 12mm board
14 for 15mm board
19 for 20mm board
Normal dry density
kg/m3
910 (± 10%)
Flexural strength, across grain
MN/m2
9
2
The Board
Density
Strength
Flexural strength, along grain
MN/m
6
Maximum allowable compressive load
MN/m2
17
Flexural Modulus of Elasticity, dry
GN/m2
5.5
Sag when suspended at 600mm span
mm
1.5 for 6mm board
1 for 9mm board
1 for 12mm board
Along grain
mm
4800 for 6mm board
7200 for 9mm board
9600 for 12mm board
Across grain
mm
5400 for 6mm board
8200 for 9mm board
10900 for 12mm board
%
0.40
Ex work
%
10 to 15
In situ at EMC
%
3 to 5
W/m.K
0.210
Thermal movements (100-25 C)
m/m.C
2.4 x 10-6
Thermal shrinkage (4 hr/300OC)
%
14
Minimum bending radius for board at ambient:
Bending Radius
Moisture movement (ambient to saturated)
Effect of Moisture
Nominal moisture content:
Thermal conductivity
Thermal Performance
Fire Performance
O
Surface spread of flame (BS476: Part 7)
Class 1
Building Regulations Classification (BS476: Part 6)
Class 0
Manufacturing tolerances:
Length
mm
±5
Width
mm
±5
Thickness
mm
± 0.5 for 6mm board
± 0.5 for 9mm board
± 0.5 for 12mm board
mm
Max. 3
Tolerances
Difference of diagonals
*Equivalent metric sizes are available and a maximum length of 3050mm and width of 1250mm can be produced to special order.
27
O
U
R
C
O
M
Intumex Asia Pacific’s commitment to technical excellence is the driving force behind
our company.
Intumex Asia Pacific unrivalled expertise in the manufacturing of calcium silicate
boards and cement-bonded particleboards continues to place it at the forefront of
building board technology. The expertise that has made Intumex Asia Pacific a market
leader in the Asia Pacific is now recognised in many countries across the world.
Intumex Asia Pacific commitment in technical excellence, is equally concern for quality
in all its forms – quality of materials, quality of production, quality of its people, even
quality of the environment.
M
I
T
M
E
N
T
S
Intumex Asia Pacific has long been involved in establishing standards for the
performance of building systems worldwide, working closely with British and
international bodies. The result is a range of tested and proven products and systems
that show exceptional performance characteristics – fire protection, moisture
resistance, hygiene performance, impact resistance, acoustic performance.
Intumex Asia Pacific products are ideal for use in many applications including ceilings,
partitioning, wall lining, roofing, flooring, structural steel protection, ducting and
external wall cladding. Literature explaining the use of Intumex Asia Pacific products
and systems in these areas is available from Intumex Asia Pacific Pte. Ltd.
March 2006
Intumex Asia Pacific
HONG KONG
Room 1011, C.C. Wu Building
302-308 Hennessy Road
Wanchai
Tel: +852 2895 0265
Fax: +852 2576 0216
AUSTRALIA
Unit 1, 175 Briens Road
Northmead, NSW 2152
Tel: +61 (2) 9683 2872
Fax: +61 (2) 9630 0258
SINGAPORE
10 Science Park Road
#03-14 The Alpha
Singapore Science Park II
Singapore 117684
Tel: +65 6292 7888
Fax: +65 6294 2576
Email: info@intumex-ap.com
www.intumex-ap.com
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