Ventilated Facades
Ventilated facades are the most
preferred facade cladding systems
for visual improvement of buildings.
Ventilated facades which can be
referredas “architectural works”
in terms of design are mounted
on the columns and floors with
carcass systems and they are used
over stone wool which is Class A1
fireproof material.
Ventilated facades are classified
as 2 different groups depending
on the weight of the panels
used on the facade. The system
consisting of panels with a weight
of more than 100 kg/m² is called
“Heavy Suspended Ventilated
Facades” and systems with panels
smaller than 100 kg/m² are called
“Lightweight Suspended Ventilated
Facades”. Aluminum composite,
ceramic, glass, precast coating are
used on the outer surface of the
ventilated facades.
BONUS Stone Wool is the most
important detail solution in the
design of heat and fire insulation of
ventilated facades.
In addition to providing the best
thermal insulation performance
with its thermal conductivity
coefficient of 0.033 W/mK, it is the
highest quality insulation material
used in fire insulation of facades
due to the fact that it is Class A1
fireproof material.
Thanks to its mineral fiber
structure, BONUS Stone Wool
provides permanent ventilation
for the building facade. In this
way, the humid air in the interior
passes through the thermal
insulation layer, preventing the
formation of condensation in the
building elements. Its water vapor
permeability resistance is 1.
Ventilated Facades
V E N T I L A T E D F A C A D E S
1
As an important point regarding
the ventilated facades, there is a
ventilation gap between the insulation
surface mounted on the outer wall
and the facade.
The purpose of this air gap is to
remove the moisture from the outer
coating and to keep the facade dry.
The airflow in the facade occurs
from the bottom upwards. In order
to provide air intake, the air entering
through the air inlet openings formed
in the lower parts of the facade
takes the moisture from the facade
and directs it upwards from here.
It is ensured that the moist air is
discharged from the openings
designed so as not to be affected by
external factors such as the rain water
entrance.
BONUS Stone Wool should
completely cover the application
surface. No air gaps should be left
between the boards. It should be
mounted on the facade profiles and
mechanically fixed to the building. For
this fixation, special stone wool dowel
with steel stud should be used. The
fixed boards should not move during
the lifecycle of the building. There
should not be any deformation or
degradation in terms of width, length
and thickness dimensions which may
cause heat transfer bridge and air
circulation between the boards.
If the thermal insulation board used
for insulation does not meet the
dimensional stability mentioned
above, it creates small air vortices
in the areas where the gaps exist
and causes the airflow from bottom
upwards to be interrupted. This
reduces the efficiency of insulation
and does not remove the moisture
from the area.
BONUS Stone Wool used on the
exterior facade for heat, fire, sound
and moisture insulation should be
covered with fiberglass against the
high wind force in the ventilation gap
and also against the water that may
leak from the facade.
It is important to protect the stone
wool from the rain during and after the
mounting of the boards. Precautions
should be taken against water from
parapets. BONUS Stone Wool should
be mounted in a way that it does
not create any gaps with the carrier
profiles and it must be mechanically
fixed by framing method.
2
The air flow occurringin the ventilation gapbetween Glass Veil
Coated BONUS Stone Wool and outer
coating surface
Glass Veil CoatedBONUS Stone Wool
Glass Veil coating used forprotection against wind and
water leakage
Building Wall Surface is thestructural element on whichthe insulation board and the
carrier system are fixed.
3
V E N T I L A T E D F A C A D E S
VENTILATED FACADE SYSTEMSSTRUCTURAL ELEMENTS
Surface / Wall
It is the structural element that
protects the building against the
external environment. There are
different types of walls. It consists of
structural elements such as exposed
concrete, brick, hollow brick, aerated
concrete, pumice concrete.
Carrier System
It is a complete set of horizontal/
vertical wood or metal profiles
mounted between the facade wall
and the final covering surface.
Thermal Insulation
It is a thermal insulation board which
is mechanically fixed to the wall by
placing between the metal profiles or
is attached to the wall with mechanical
fixing elements. Glass veil coated
BONUS Stone Wool with A1 fire
resistance performance should be
used as thermal insulation board.
The board must remain fixed over the
lifecycle of the building, maintainin its
volume dimensions.
Air gaps may occur between the
insulating board and the wall and, if
there are different insulation board
layers, the gaps between these layers
should be avoided.
Insulation surface must be covered
with glass veil for protection against
wind.
The thermal insulation board thickness
should be calculated according to TS
825 standard.
Ventilation Gap
It is the space between the facade
element and the stone wool
insulation. It is the part of the building
that removes the moisture and
possible rain leakage from the areas
sensitive to humidity. The ventilation
gap must be determined in the project
and should be a minimum of 25 mm.
In this gap, there should not be any
external residues such as lath or
mortar remains.
Exterior Cladding
The durable materials applied to the
outer surface of the wall such as wood
based panels, precast, fiber cement,
concrete, stone, ceramic, metal,
aluminum composite, plastic, laminate
and bricks.
Additional Materials
Carrier elements are the materials
required for fixing the thermal
insulation boards.
4
V E N T I L A T E D F A C A D E S
BONUS Stone Wool Gold / Gold Plus
BONUS Stone Wool Premium R / Premium R150
Brick / Aerated Concrete / Reinforced Concrete Wall
Floor Covering
Mortar
Protective Concrete
Seperator Layer
Waterproofing
Moisture Barrier
Leveling Concrete
Reinforced ConcreteCeiling Plaster
Facade Coating
Ventilation Gap
Interior Plaster
5
Natural Convection
Natural convection is a mechanism that
is created by the density difference in
air caused by temperature gradients
where the air movement is not
produced by any external source such
as wind.
In natural convection, the air
surrounding a heat source takes heat
from the source, its density decreases
and it rises. The cooling air in the
environment then moves to replace
this air. This cooling air then heats up
again and the process continues by
creating a convection current. This
process transmits energy from the
bottom to the top. The driving force
for natural convection is the lifting
force resulting from the differences in
air density.
Forced Convection
Forced convection is the effect of heat
dissipation on the building facade due
to pressure differences. Wind plays
an important role in energy efficiency.
The air flow around the building
depends on the pressure differences
on the structure, the air-tightness
of the structure and the thermal
insulation.
Moisture Transfer
The presence of air pores in the
structure or in any part of the
construction does not pose any
problems. However, if moisture
travels through thepores, it can cause
negative effects. Humid air in motion
can drag the moisture towards the
parts that will cause condensation.
When the air with high energy passes
to the cold areas with low energy,
it may cause condensation due
to temperature differences in the
structure.
Transport is a kind of heat transfer
between the building surface and air.
In moisture transport, the water vapor
content in the air moves within the air
passing through the structure. As the
air passes from a warmer area to a
cooler area, water vapor in the air can
condense on cold surfaces.
If the air goes from a cold area to a hot
area, condensation does not occur.
Prevention of condensation due to
cold and temperature differences is
provided by having low temperature
differences on the exterior
facade of the building. Insulation
thickness should be increased if
the condensation is found in TS
825 calculations. Thermal insulation
thickness is the most important factor
here. If the differencebetween the
indoor air temperature and the inner
wall surface temperature exceeds
3°C, the water will begin to condense
on the cold surface resulting with
mold growth.
Ventilated FacadeMechanism
6
V E N T I L A T E D F A C A D E S
For ventilated facades, glass veil
coated or unfaced coated Class A1
fireproof BONUS Stone Wool with
0.033 W/mK thermal conductivity
coefficient which enables the
building to be ventilated by allowing
air flow must be used.
It is important that the thermal
insulation is protected from
internal moisture and external
humidity. Moisture transferred
from the hot area to the cooler
area can be condensed on cold
surfaces. Therefore, the wall should
be designed to easily remove
excess moisture from the wall.
The fiberglass coating used for
wind protection must also have
a sufficiently high vapor passage
specification to prevent water
vapor condensation.
The thermal insulation board
used should be able to protect its
dimensions without ant loss during
the lifecycle of the building.
Important Notes
7
Why chooseBONUS Stone Wool?
Stone wool is a non-flammable
thermal insulation material that
serves many purposes.
Stone wool is one of the most widely
used thermal insulation materials in
many countries around the world.
BONUS Stone Wool provides a high
level of thermal and sound insulation
properties and is a high fire resistance
level insulation material. In addition
to construction, rock wool is a highly
demanded product for the insulation
needed in areas such as ship
industry and nuclear power plants, it
is an insulation material which meets
many different requirements at once.
Provides Excellent Fire
Resistance in Buildings
Main material of BONUS Stone
Wool is basalt rock. Therefore, it
can be used as thermal insulation
material in applications requiring
very high performance. Almost all
kinds of mineral wool are classified
as fireproof material, but BONUS
Stone Wool has an exceptionally
high melting temperature of
around 1000°C and provides longer
protection. Therefore, it not only
contributes to the fire resistance but
also offers a fire-resistant thermal
insulation solution.
BONUS Stone Wool products are
classified as the highest fire response
Class A1.
The unique fire resistance
characteristics of the BONUS Stone
Wool can be used as a fire insulation
in construction or as a structural
protective coating. In buildings
insulated with BONUS Stone Wool,
the spread of fire is delayed or
completely prevented.
The right product guarantees
the best results.
Among all mineral wool, stone wool
has the best alkali resistance. This is
especially important in manufacturing
with cement and lime based mortars
in facade systems.
Yapı Ömrü Boyunca
Insulation Material that
Keeps its Performance
throughout the Building
Lifecycle
BONUS Stone Wool continues
to protect its thermal insulation
properties throughout the lifecycle
of the building. It is a chemically
resistant material with strong
resistance to organic oils, solvents
and alkali substances.
8
BONUS Stone Wool is the
product with the highest quality
when it comes to fire and
moisture protection.
With BONUS Stone Wool, protection against moisture
is increased in the insulated
building. BONUS Stone Wool is water repellent and it dries
quickly even when exposed
to water due to its high vapor
permeability.
BONUS Stone Wool is not
flammable, therefore it is
classified in the highest Euro
Class A1.
V E N T I L A T E D F A C A D E S
1200
Temperature 0C
1000
800
600
400
200
0 30 60 90 120 150 180 210 240
0
Melting of Glass Materials
Bonus Stone Wool continues toprotect insulated surfaces from fire
Melting of Plastic Materials
Ignition of Wood Materials
9
Dimensionally Stable
BONUS Stone Wool does not shrink
or expand even if there are significant
changes in temperature or humidity.
Therefore, cracks do not occur in the
joints of the boards. The risk of heat
leakage and moisture condensation is
avoided.
Prevents Humidity
BONUS Stone Wool does not absorb
or accumulate moisture in a capillary
manner by providing rapid evaporation
in buildings. A building insulated with
BONUS Stone Wool remains dry and
guarantees healthy indoor air quality
and building lifecycle.
Efficient Sound Insulation
Thanks to its porous fibrous structure,
BONUS Stone Wool provides
excellent sound insulation for walls,
roofs, intermediate compartments,
mezzanines, acoustic ceilings,
mechanical rooms in short, in any
living area of the building.
Sustainable
BONUS Stone Wool continues to
perform its duty throughout the
lifecycle of the building. Stone wool
is an extremely durable insulating
material that has been proven to
provide significant energy savings
fire protection and excellent sound
insulation properties for a large
number of applications. Stone wool
does not contain any components or
chemicals that prevent its recycling.
BONUS Stone Wool and
Indoor Air Quality
BONUS Stone Wool is a very clean
material and is therefore the best
insulation material for homes made for
people with allergies and respiratory
diseases. It does not pollute the air,
it provides continuous air freshness
thanks to its ventilating structure. It
has RoHS certificate.
BONUS Insulation - The
Good Insulation
BONUS Insulation, which has given
its name to the leading brands in
the insulation sector, offers various
detail solutions at every stage of the
projects with its technically equipped
team. BONUS Insulation is a specialist
in the sector with the collaboration
strength of the best organizations in
their fields.
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V E N T I L A T E D F A C A D E S
Ventilated FacadeSolutions
Solutions for ventilated facades
are recommended based on
the type of building. Solutions
for individual dwellings, multi-
storey buildings and industrial
buildings are designed in terms of
architecture.
When creating solutions for
ventilated facades, thermal
transmittance coefficient U values,
fire requirements, air and wind
loads should be calculated and
chosen and designed in a way to
prevent moisture condensation
with in the building. Precautions
should be taken against thermal
bridges originating from the
building structure, especially in
cold climates.
The carrier system of the metal
profiles is formed by means of
fixing on the wall materials such as
exposed concrete, brick, aerated
concrete and pumice block.
BONUS Stone Wool, which is
covered with fiberglass on one
side in the range of 70 - 90 kg/m³
is mounted between the carrier
system profiles. Then it should be
fixed with steel studs. A minimum
of 25 mm of ventilation gap should
be left between the outer surface
of the stone wool board and the
exterior cladding.
After leaving the ventilation gap
between the preferred exterior
cladding material and the insulation
material, the exterior cladding
is terminated by mounting with
special equipment. Air inlet and
air outlet openings should be
designed in such a way that the air
enters from below and exits above
in the exterior facade.
The thickness of the BONUS Stone
Wool board should be calculated
according to TS825 standards.
The superior thermal insulation
performance of the BONUS Stone
Wool offers the ideal solution
for detail solutions. BONUS
Stone Wool provides a unique,
superior performance with a
thermal conductivity coefficient of
0.033 W/ mK.
With the effect of the air flow on high-rise ventilated facades, the fire moves very fast. It may result in the entire facade
being burned. In order to prevent the fire from spreading to the upper floors, it is necessary to create a fire compartment.
The fire compartment in the ventilated curtain wall facade should be made with intumescent material. The intumescent
material will swell up by the heat effect of the fire and cut the upward air flow.
Bonus Stone Wool
Bonus Stone Wool
Pinned sheet
metal board or
fire proof sliding
material
Intumescent Material
Exterior Cladding
Exposed Concrete
Exposed Concrete
Ventilated Facade
Bonus Stone Wool
Pinned sheet metal board or fire proof
sliding material
Stone wool on ventilated curtain walls - intumescent material usage details
Stone wool usage details in curtain walls (Buildings without sprinkler system)
Stone wool usage details in ventilated facades (Buildings with sprinkler system)
Note: In this detail, it is recommended to use the Bonus Stone Wool at a density of 150 kg/m3 with the
relevant regulatory specifications.11
Horizontal Ventilated Facade System
1
1
2
2
3
3
4
4
5
5
Carrier Structure (Concrete, brick, aerated concrete etc.)
Metal Carcass
BONUS Stone Wool Gold / Gold Plus
Ventilation Gap BONUS Stone Wool Gold / Gold Plus
Exterior Cladding Material (Ceramic coating, marble coating, stone coating,
fiber cement coating, metal coating)
12
1
2
3
4
5
1
2
3
4
5
Carrier Structure (Concrete, brick, aerated concrete etc.)
Metal Carcass
BONUS Stone Wool Gold / Gold Plus
Ventilation Gap
Exterior Cladding Material (Composite)
Vertical Ventilated Facade System
13
Brick Coated Masonry Wall System
1
2
3
4
1
2
3
4
Carrier Structure (Concrete, Brick, Aerated Concrete etc.)
BONUS Stone Wool Gold / Gold Plus
Ventilation Gap
Exterior Cladding Material (Brick)
14
Metal Ventilated Facade System
1
1
2
2
3
3
4
4
5
5
6
6
Metal Board
Moisture Barrier
Metal Carcass
BONUS Stone Wool Gold / Gold Plus
Ventilation Gap
Metal Exterior Cladding Material
15
Metal Ventilated Facade System
1
24
3
5
1
2
3
4
5
Carrier Structure
Metal Carcass
BONUS Stone Wool Gold / Gold Plus
Ventilation Gap
Metal Exterior Cladding Material
16
BONUS STONE WOOL GOLD / GOLD PLUS
Technical Specifications
Insulation board used in aluminum, PVC, granite, marble and glass
cladding systems, double wall insulation and metal construction
insulation systems.
ISO 9001
Product TypeDensity Thickness
Width x Length
Thermal Conductivity Coefficient *
Thickness Class
Compressive Strength
Normal Tensile Strength
kg/m3 mm mm x mm W/mK kPa kPa
GOLD
50 40 - 120 600 X 1200 0,033 T4Not
ApplicableNot Applicable
GOLD BLACK
GOLD YELLOW
GOLD ALU
GOLD PLUS 70
70 30 - 120 600 X 1200 0,033 T4Not
ApplicableNot ApplicableGOLD PLUS BLACK
GOLD PLUS YELLOW
GOLD PLUS 9090 30 - 120 600 X 1200 0,033 T4
Not Applicable
Not ApplicableGOLD PLUS BLACK
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ISO 14001
Refe
renc
es
Refe
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es
BATIŞEHİR
RÖNESANS BİZ KÜÇÜKYALI OFİSPARK
MAİ RESIDENCE
19
AND PLAZA
İSTWEST
NEXT LEVEL
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WEST GATE
ANTTERAS
MERMERLER PLAZA
21
MESA KARTALL
QUASAR İSTANBUL
22
SKYLAND
KOÇ KULELERİ
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AKASYA ACIBADEM
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