name / slide nr 1 the company. name / slide nr 2 1835 cement and lime factory weizen 1955start of...

name / slide Nr 1

The Company

name / slide Nr 2

1835 Cement and lime factory Weizen

1955 Start of organic render production

1965 First EWIS developped

1992 Sto AG is floated on the stock exchange 1996 StoCretec becomes separate subsidiary2000 Takeover of Shanghai Dinova Ltd., China2001 Acquisition of ispo GmbH, Kriftel

today 4000 employees18 international subsidiaries1 mission

From lime factory to Sto brand

Building with Concience

name / slide Nr 3

Sto AG‘s Mission statementThe basis of the company’s guiding principles

Maintaining the value of old and new buildings is a permanent problem for building owners, investors and users.

In its quest to solve this problem, Sto researches, develops, produces and markets product systems and services, with the aim of maintaining and improving the substance and functions of walls, ceilings and floors, and providing long-term protection from damage.

This functional area of work is accompanied by services relating to the aesthetic design of buildings in terms of colour and structure.

Sto wants to act as a pacemaker and play a leading role in helping to ensure that the world in which we live is designed in line with environmental requirements and our needs as human beings. We therefore collaborate with like-minded customers and partners.

Our declared aim is to comply with our company’s guiding principles in our dealings with all those involved in the building sector. Sto’s mission statement can be summed up in three words: Building with conscience.

name / slide Nr 4

External Wall InsulationSystems

name / slide Nr 5

Introduction

Why thermal insulation?

Reserves of fuel materials for heating (e.g. fuel oil, gas, coal)

are not unlimited and not substitutionable

Reduction of toxic emissions e.g. CO2 (hothouse effect)

Sto façade insulation systems account for around

35 billion litres of heating oil thus avoiding the emission of

over than 110 million tons of CO2

name / slide Nr 6

External Wall Insulation Systems

Advantages of external wall insulation systems Energy saving (up to 60%) Environment: less toxic emissions, less fuel materials. Elimination of thermal bridges.

(Ceilings, geometrical thermal bridges, etc.) There, where internal insulation now is existing:

No condensation anymore in the wall construction. Reduction of temperature tensions. Increasing of the wall surface temperature inside.

No risk anymore for mould spots. A better using of the heat accumulation capacity. The facade is protected against heavy raining. A new optical attractive facade.

name / slide Nr 7

StoTherm Classic

Benefits of the Sto ExternalWallInsulationSystem

name / slide Nr 8

Substrate: Structural wall,brick, block, timber frame etc

Insulation board

Reinforcing coat + mesh

Sto decorative finish render Acrylic/Silicone

StoTherm Classic=

Organic

Organic

Organic

+

+

System Concept

Fixing

name / slide Nr 9

↑ thickness ↓ density ↓ thermal conductivity

Insulation productExpanded Polystyrene, EPS

↑ insulation quality

high crack resistance high resistance to mechanical stress low coefficient of thermal elongation permeability to CO2 and to water vapor

elasticity hydrothermal behavior

↑ long term durability

EPS

name / slide Nr 10

Insulation Board Types used for Insulated Render Systems

85 15PolystyreneOthers

EPS -largely

preferred choice (min. wool, PUR,

foamglas, corc)

name / slide Nr 11

Calculation of the U-value:Wall structures are usually composed of several layers (internal plaster, brickwork, external plaster and/or thermal insulation, wall finish etc.). Each layer of material has a thickness d [m] and a own thermal conductivity coefficient [W/m.K].

The thermal resistance (d/)of each layer of material is added to the internal and external surface resistances (1/). The sum is the total thermal resistance (R) for the total (wall) construction. The inverted value of this figure is known as the total thermal transmittance: U-value.

+ + U-value: the smaller, the better + +

INSULATIONTotal Thermal Transmittance U [W/m².K]

name / slide Nr 12

Wall constructions (examples):

Old dwelling houses: U = 1,00 - 1,50

Not so very old dwelling houses: U = 0,70 -1,00

New dwelling houses: U = 0,35 - 0,40

Low energy dwelling houses: U < 0,35


name / slide Nr 13

U = 0,37 W/m².K

0,30 m0,10 m

EPS

As separate materials:

0,40 m

Concrete 0 U = 3,20 W/m².K U = 0,36 W/m².K

Both materials inone system:


name / slide Nr 14

Wall thickness: 30 cm

Concrete 1,76 2,94

0,43

Solid brick 0,64 1,56 0,38

Lime sandstone 0,48 1,250,36

Light-weight brick 0,55 1,400,37

withoutinsulation

with8 cm ins.

U-Values,with and without insulation

name / slide Nr 15

wall construction surroundings climatic zone and architectural design etc.

Energy savings per m2

Rough estimation: 50-70% depending on...

oil and electricity prices !!!

elimination of thermal bridges → 20- 25% contribution in energy savings

↑ actual savings per year by using EWIS

name / slide Nr 16

What are the advantages of EWIS?

Passive house:Ottbergen

U value: 0,127 W/m2K

EWIS:StoTherm Classic300 mm

Active heating:None.

name / slide Nr 17

Base Coats

Their vital role for

Long Term Durability

and Economy of EWIS

the Major Benefit of

StoTherm Classic

name / slide Nr 18

Stress for Base Coats

Sun

Rain

Temperature°C

Insulation

Tensions= Pull/tensile forces

Wall

name / slide Nr 19

Base Coats for EWISGeneral Requirements

excellent moisture protection high crack resistancy and good elongation sufficiant elasticity minimizing application difficulties high impact resistancy Long term stability of binder, no influence of

ingredients on system safety (alkalinity etc.)

name / slide Nr 20

Sto cement free

Cementitiousslightly improved

Cementitioushighly improved

0,00% 0,50% 1,00% 1,50% 2,00% 2,50% 3,00% 3,50%

Dehnung bis zum ersten sichtbaren Riß

0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5

Expansion before first visible crack [%]

DurabilityCrack Expansion Testing

name / slide Nr 21

0,0 1,0 2,0 3,0 4,0 5,0 6,0 7,0 8,0 9,0

Energie bis zur oberflächlichen Beschädigung in Joule

Organic system

Mixed system

Cementitious system

(Sto Armat Classic cement free)

(Cementitious reinforcementand top coat)

(Inorganic reinforcement,organic top coat)

Durability Pendulum Impact Testing

0.0 2.0 4.0 6.0 8.0Energy before surface damage [Joules]

name / slide Nr 22

Cementitious System StoTherm Classic

Durability Pendulum Impact Testing

name / slide Nr 23

StoTherm Classiccement free

Mineral Systemcementitious

Impact ResistancyTested by Nature

name / slide Nr 24

The coefficient of thermal elongation T indicates how much 1 meter a material expands if there is a temperature difference of 1K .

(T depends on the macrostructure of the building material)

L = L x T x K (m)

Coefficient of Thermal Elongation T

L Change in Length (m)L Length (m)T Coefficient of thermal elongationK Temperature difference

name / slide Nr 25

Typical values:

Concrete 10 x 10-6

Steel 12 x 10-6

EPS 60 x 10-6

Mineral wool 1 x 10-6

Aluminium 24 x 10-6

Mineral plaster 10 x 10-6

Organic plasterStoVerotec Board 8 x 10-6


name / slide Nr 26

Example:

1. Railway Munich - NürnbergTrack length: 199 km = 199.000 mCoefficient of thermal elongation steel: T = 12 x 10-6

Temperature difference summer - winter: 50 KLength change: 119,4 m

2. Brick wallLength: 9 mCoefficient of thermal elongation brick: T = 12 x 10-6Temperature difference summer - winter: 50 KLength change: 5,4 mm


name / slide Nr 27

The ideal EWIS Base CoatCharacteristics Profile of organic compounds

best elasticity best crack resistance highest impact resistance best moisture

protection best weather resistance,

even without finish

safest to apply, also at difficult weather conditions

fastest curing most economic long term durability

name / slide Nr 28

Colour & TextureFinish Renders

name / slide Nr 29

Finish VariationsStolit with many different textures

name / slide Nr 30

Finish VariationsSto Nivellit as smooth option

name / slide Nr 31

Finish plasters

Acrylic binder Stolit K/R, Superlit,

Silicone binder StoSilco K/R, MP

Characteristics

name / slide Nr 32

Acrylic plaster benefits

highest elasticity widest choice of colors best safety coefficient easy application and structuring

name / slide Nr 33

Silicone plaster benefits

excellent water repellent effect together with excellent water vapour permeability

excellent dirt resistance mineral colour selection wheel

name / slide Nr 34

Finish Renders Stolit Benefits

Homogeniously tinted Ready to apply, no mixing on site Easy application and structuring Regular drying without patches No efflorescences No egalizing paint finish coat No additional primer on Sto Armat Classic Best adhesion Best stability of colour due to pigments and binder Best long term stability Best mechanical resistancy and cleanability Best choice in structures

name / slide Nr 35

Economical Considerations on Base Coat Selection

+ safety for free !

Material

economy of materialless worksing steps

economy of time

StoTherm Classic

name / slide Nr 36

StoTherm ClassicGeneral Benefits

Maximum of security by selection of "state of the art" product components

Outstanding performance and excellent product experience makes Classic a the bench mark for others

Cement free fiber reinforced ground coat gives maximum of elasticity and impact/crack resistance

name / slide Nr 37

StoTherm ClassicGeneral Benefits contd.

Ready-to-apply products make application easy, quick and safe, even at bad weather conditions

Weather resistant, cement free, tintable ground coat needs no additional primer, which is an important economy

Organic finishes give a maximum in weather protection, durability, color and structure choice

name / slide Nr 38

StoTherm Classic

examples….

Case Study

name / slide Nr 39

Energy savings studyStoTherm Classic - Athens Imperial Hotel, Greece

Hotel renovation StoTherm Classic Organic compounds, ready to use Result= 50% reduction in U -value Energy savings per year: m2=11.95 €/m2

name / slide nr 1 the company. name / slide nr 2 1835 cement and lime factory weizen 1955start of...

Documents

insulation slide

slide nr

ewis slide

concience slide

corc slide

u value

internal insulation

concrete u