Category: Eurobrick Brick Cladding Specification
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Eurobrick
Brick Cladding Specification
1 Description of Product
1.1.1 EuroBrick Insulated Brick Cladding System is assessed for use as
weather resistant, thermally insulating decorative exterior finish. The
standard system comprises 50mm thick extruded polystyrene foam
insulation boards bonded to a polystyrene vacuum formed skin. The skin
provides a precise horizontal joint spacing track for 15mm thick fire
clay
brick slips which are applied by EuroBrick Systems Limited supplied
adhesive. The vertical and horizontal joints between the brick slips are
grouted with EuroBrick Systems Limited supplied premixed cement based
mortar.
1.1.2 The bonded polystyrene insulation with vacuum formed skin is
supplied in panels 1200mm by 2400mm. The panels have a tongue and
groove on the long dimensions, the horizontal joint track being at right
angles
to the long edges, and are delivered to site in shrink wrapped packs.
The
adhesive is supplied in sausages, the brick slips are delivered boxed
and
the grouting mortar is supplied in 25 kg bags.
1.1.3 Mechanical fixings for fixing to timber, metal or masonry are
supplied
by EuroBrick Systems Limited for fixing the polystyrene panels to the
masonry, dense concrete, metal or timber substrate.
1.2 Product Performance
1.2.1 EuroBrick Insulated Brick Cladding System will provide a weather
resistant external wall insulation cladding with a brickwork appearance
for
masonry, dense concrete, metal or timber frame construction.
1.2.2 EuroBrick Insulated Brick Cladding System will provide additional
thermal resistance to an existing wall of 0.49 m2K/W. The thermal
conductivity of the layer of polystyrene insulation has been measured as
0.026 W/mK.
A U-value of less than 0.45 W/m2K can be achieved with the standard
50mm thickness of external insulation in conjunction with masonry, dense
concrete, metal or timber frame wall construction.
1.2.3 Tests have shown that the EuroBrick Insulated Brick Cladding
System
will limit the amount of water able to reach the substrate. The cladding
can
be classified as Type 4 insulating cladding for impermeability to water,
as
defined in UEAtc MOAT No 45. It is considered that the cladding system
is suitable for geographic areas including those classified as having
“very
severe” exposure to wind driven rain, when assessed with reference to BS
5628: Part 3: 1985 and BS 8104:`1992. Reference must be made to BRE
document BR 143 “Thermal Insulation-Avoiding Risks”.
1.2.4 The cladding, when tested for surface spread of flame in
accordance
with BS 476: Part 7: 1987, and to BS 476: Part 6: 1983, achieves a Class
O rating with respect to the appropriate Building Regulations. There
will be
a maximum surface area restrictions for the system for use near to other
unprotected areas or to boundaries, as detailed in Section 2 below.
EuroBrick Insulated Brick Cladding System must not be considered as
providing any contribution towards the overall fire resistance
performance
of a wall.
The insulation boards must be separated by horizontal fire barriers at
intervals of not less than the line of every other floor in the
construction from
the second floor, except in England and Wales where there is no such
requirement unless deemed a compartment wall/floor. The fire barriers
must be applied in accordance with the instructions of EuroBrick Systems
Limited.
1.2.5 The EuroBrick Insulated Brick Cladding System has a vapour
resistance of 130 Mns/g. Calculations performed in accordance with BS
5250:1989 show that under conditions typical for the UK, interstitial
condensation will not occur within the system with 50mm standard
thickness
insulation for masonry, dense concrete, metal or timber frame
construction.
With metal and timber frame construction, where additional insulation is
installed between the frame, it is essential that any vapour barrier on
the
warm side of the structure is fully effective.
1.2.6 Tests on the EuroBrick Insulated Brick Cladding System have shown
that the system has adequate resistance to the forces of wind suction
and
pressure for locations where the basic wind speed is up to 52 m/s in
accordance with CP3: ChapterV: Part2: 1972. Variations in temperature
and moisture content will not cause detachment of the brick slips and
grout
from the insulation panel over the range of operating temperatures that
may
be anticipated in the UK subject to expansion joints being provided. The
system is resistant to cyclic freezing and thawing action and after
prolonged
exposure to such conditions exhibits no detachment or spalling of the
brick
face.
1.2.7 Tests have shown that the brick slips will not detach under the
effects
of hard body impacts up to 15J. Localised damage may occur in situations
where the system is subjected to impact energies above 7.5J.
1.2.8 When installed in accordance with the manufacturer’s instructions
and
the requirements of this certificate, no dust or insects should be able
to
penetrate through the system.
1.2.9 The EuroBrick Insulated Brick Cladding System is considered to be
durable for at least 60 years on the building on which it is
incorporated
provided that the system is installed in accordance with the
requirements
of the manufacturer and that any accidental damage to the finish is
effectively repaired.
2. Technical Appraisal
2.1 Performance Tests
Tests and inspection of test data have been carried out to determine the
properties and performance of the EuroBrick Insulated Brick Cladding
System for:-
- Wind loading
- Durability
- Adhesion between layers
- Performance in relation to fire
- Resistance to water penetration & water vapour
- Transmission
- Resistance to impact
- Resistance to cyclic freezing & thawing
- Resistance to thermal & moisture cycling
Some of the results are outlined in Table 1
Assessment has been made of the products and practicality of
installation.
Buildings recently clad with the system have been inspected.
Information associated with: Eurobrick - Brick Cladding & Brick Facades
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EuroBrick Systems Limited
Unit 7
Wilverley Trading Estate
Bath Road
Brislington
Bristol
BS4 5NL
Tel: 0117 971 7117
Fax: 0117 971 7217
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