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


… but ETICS will help saving resources and money in hot climates as well

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Practical considerations of a thermal insulation system


� 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


λ = 0,035 W / (m K)

density

ρ ~ 0,16 kg / m3

12 cm of EPS 035

EPS Dalmatiner 032


λ = 0,032 W / (m K)

density

ρ ~ 0,16 kg / m3

11 cm of EPS 032

EPS 032


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