andreas kiesewetter - external thermal insulation composite systems etics
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DAW
External Thermal Insulation
Composite Systems
ETICS
requirements with regard to sustainability, health, environment, quality and life cycle
Dr. Andreas Kiesewetter, DAW Germany
Kuwait, February 2012
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DAWDAW
Genuine Quality.
• founded in 1895
• No.3 in Europe after Akzo/ICI, PPG/Sigma
• Europe´s largest privately owned manufacturer ofarchitectural coatings.
• No.1 in Germany, Austria, Turkey
• total turnover 1,3 bn Euro
• 5600 empoyees world wide
• more than 50 years of experience with ETIC
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DAW
The DAW-Group includes more than50 locations throughout the world
Top Brands for façade:
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� 1959 born
� 1981 – 1989 Bauhaus University in Weimar, Germany
civil engineer, scientific research, doctoral agree
� 1991 – 2006 YTONG/XELLA (largest producer of aerated
autoclaved concrete in Europe)
head of business development, sales support
� 2006 till now DAW
Business development international
head of building envelope systems
(ETICS, ventilated façade, internal insulation etc.)
Dr. Ing. Andreas Kiesewetter
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If you plan for a year, you should seed grain,
If you plan for a decade, you should plant trees,
If you plan for a lifetime, you should educate humans.
Guan Zhong (ca. 650 AC)
What is the meaning of sustainability?
Socioculturalfactors
The concept of sustainability
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Aspects for the sustainability
Environmental
it must take care to the ecology
Social
it must make „happy“ (health)
Technical
it must be functional (usability and durability)
Economic
it must be affordable (expenses acceptable)
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Global Warming Potential with emission CO2
Energy Consumption
Ozone Depletion and Ozone Creation Potential with VOC emissions
Emissions to air, leaching to water and soil
Water Acidification and Eutrophication Potential
Potable Water Consumption
Waste Production
Renaturation
Durability, life cycle costs
Environmental Aspects
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Energetic upgrade of the building’s shell
Quality upgrade of the building’s shell concerning moisture
Easy to clean and easy maintenance of the structure
Protection of surfaces
Technical Aspects of ETICS
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Low life cycle costs (long durability, low service expenses)
Value stability (nice surfaces, nice colours)
Energy saving by heat retention (low share cost, high rent)
Economical Aspects of ETICS
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Picture of an infrared camera before and after renovation
Without heat insulation With heat insulation
With an thermal insulation the heat transfer through the building envelope can be reduced
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Thermal insulation system in hot climate conditions
Without heat insulation With heat insulation
… but ETICS will help saving resources and money in hot climates as well
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Practical considerations of a thermal insulation system
Without heat insulation With heat insulation
� Create a closed external insulation envelope for the building without
thermal bridging
� Vapour barrier and dew-point to prevent damage caused by humidity
� The insulation medium
� Mechanical stability and fixation
� Flexibility of the system in terms of accessibility, maintenance, renovation, damage
For the optimum solution for thermal insulation a few considerations have to be taken into account
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Temperature situation of non-insulated wall with concrete column
• 25 cm solid block• 50 cm concrete column
• Inside Temp 18 C• Outside Temp 48 C
Therm Finite Element Simulator (University of California, project supported by the US Government) http://windows.lbl.gov/software/therm/therm.html
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Optimized temperature situation with ETICS – no thermal bridges due to an envelope system
• 25 cm solid block• 6cm EPS ETICS• 50 cm concrete column• Inside Temp 18 C
• Outside Temp 48 C
18.6 C
18.6 C
20.9 C
Therm Finite Element Simulator (University of California, project supported by the US Government) http://windows.lbl.gov/software/therm/therm.html
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High quality ETICS – How does it look like under sustainability aspects
Mounting (Adhesive Mortar)
Insulating Board (EPS)
Reinforcing Mesh
Reinforcing Mortar
Finish Coat with Vapour Barrier
ThermalConductivity ???
MechanicalDurability ???
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Thermal Conductivity – dark infrared absorbers in the EPS board lead to better conductivity …
White Insulation BoardIR-radiation can pass this material
Dark Insulation BoardIR-radiation will be absorbed and reflected due to carbon particles
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Dalmatiner Technology – the solution to combine the advantages of black and white boards
+ =
The patented mixture of black and white pearls results in a technology with low thermal conductivity of the black board combined with the form stability of the white board
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Overview over different EPS insulation materials
EPS 040
thermal conductivity
λ = 0,040 W / (m K)
density
ρ ~ 0,16 kg / m3
thickness comparison
14 cm will equal
EPS Dalmatiner 035
thermal conductivity
λ = 0,035 W / (m K)
density
ρ ~ 0,16 kg / m3
12 cm of EPS 035
EPS Dalmatiner 032
thermal conductivity
λ = 0,032 W / (m K)
density
ρ ~ 0,16 kg / m3
11 cm of EPS 032
EPS 032
thermal conductivity
λ = 0,032 W / (m K)
density
ρ ~ 0,16 kg / m3
11 cm of EPS 032
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Saving energy – efficient and easy:
� ETICS provide a shell around living
spaces to protect from chill and/or heat.
� No loss of heat via leaks and thermal
bridges.
� Fully designed for a perfect
architectural style.
� Easy to install and easy to maintain.
� Insulation upgrades to a better level are
possible at any time.
Solutions to modern construction challenges
Saving Costs
• Excellent insulation values (U-value) due to
unique “Dalmatian” insulation boards.
• Insulation outside the structural wall: stabilised
living space temperature by thermal potential of wall mass.
• Reduced activity of heating equipment or air
conditioning: smaller installation units.
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Mechanical Durability – stress on facades
Stress mechanisms on facades
� Mechanical stress due to wind loads
� Thermal stress due to temperature changes
� Mechanical stress due to vandalism, playing kids, knives, public traffic, …
� Color fading due to UV-light
� Abrasion effects due to wind, sand, weather, …
With increasing durability the sustainability will
increase
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Carbon fibers as known solution for high tech products with optimum mechanical performance
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Carbon Fibers in the reinforcement mortar are the secret for increased durability
Cross-section of a Carbon ETICS System
Dalmatiner EPS
insulating board
Final
Coat
fiber
glass mesh
Carbon Plaster under the microscope
Reinforcement with
Carbon
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The Carbon fibers lead to an stunning performance in the Steel-Ball-Impact Test …
According to the European ETAG 004 the mechanical resistance of ETICS has to be
• 3 Joule for standard ETICS
• 10 Joule for high performance ETICS
Setup of the test:
a steel ball is dropped from a certain height
1 Joule = 1 kg dropped of from 10 cm3 Joule = 1 kg dropped of from 30 cm10 Joule = 1 kg dropped of from 1 m
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0 10 20 30
Energy [Joule]
minimum requirement limit of the test standard
1 layer Carbon-Plaster
mineral system
2 layer carbon plaster – up to 60 Joule
Carbon Plinth Reinforcement –Steel Ball Impact Test according ETAG 004
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High quality ETICS – How does it look like under sustainability aspects
Mounting (Adhesive Mortar)
Insulating Board (EPS)
Reinforcing Mesh
Reinforcing Mortar
Finish Coat with Vapour Barrier
ThermalConductivity
MechanicalDurability
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Flexible designing:
� ETICS are well balanced between function and form.
� Only few restrictions in architectural designing.
� Adaptable to personal style for new buildings and in case of refurbishments.
� Surfacing in a wide range in colours and
structures.
Durable in surviving
� Tough under all weather conditions.
� Strong even under mechanical impacts.
� Reducing thermal stress in structural constructions.
ETICS provides solutions to modern construction challenges
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Facade paint with low dirt pick-up
Criteria for products
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High quality ETICS – features and key performance indicators
� Optimal Thermal Protection ���� Building Envelope
� Optimal Water Vapour barrier possible
� Flexible Thermal Characteristics ���� U-Value ≤ 0.20 W/m²k @ 16cm EPS
� Unique Strength ���� up to 60 Joules (resistance of 1kg ball free fall over 6m)
� High Rise Sustainability ���� up to 143m (Sofitel, Dubai)
� Solutions for resisting building movements and swinging
� Prevent Thermal Bridges ���� can be downsized to “0”
� Flexible Design ���� Curves, Grooves, Special finishes
� More than 250,000,000 m² of experience world wide
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Thermal Insulation – The Reasons
� Reduce air-condition costs
� Reduce the dependency on climate control equipment
� Increase the comfort level of the living space
� Eliminate thermal loads for building structure
� Environmental consideration
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Innovative products, systems and technical support
Pre-specification alternatives
Provide full and integrated support in the
pre-specification phase that will insure the
best possible system is selected.
Specification details
Provide full details of all elements
including CAD drawings, fixing and
reinforcing elements.
Selection of certified applicators
Aid with the selection of certified
applicators that meet the project
requirements.
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Details and solutions from plinth to roof
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Solutions to modern construction challenges
Training
Provide technical training that rectified
identified shortcoming.
Guarantees
Provide guarantees for every step in the
approved system.
Maintenance program
We will help construct a maintenance plan for
the life span of the building.
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Sofitel Hotel – JBR, Dubai, 143m , 8500m²
Sofitel Hotel, Dubai
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