wacker chemicals
TRANSCRIPT
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CREATING TOMORROW'S SOLUTIONS
PERFORMANCE REQUIREMENTS AND STANDARDS FOR A SUCCESSFUL EXTERIOR INSULATION AND FINISH SYSTEMS (EIFS) /GREEN BUILDING CONFERENCE AT AUDMohammed Sanaobar, LBE TC Dubai, 25.06.08
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 1
AGENDA
• THE EIFS / ETICS SYSTEM
• WHY EIFS / ETICS?
• MOST IMPORTANT COMPONENTS
• NORMS AND REGULATIONS
• CRITICAL FACTORS
• EOTA WALL
• CASE STUDY CHINA
• COST MODEL
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 2
THE EIFS / ETICS SYSTEM
substrate
adhesive
Expanded polystyrene panel EPS
glass fibre mesh
base coat
plaster
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 3
WHY EIFS / ETICS?POSSIBILITIES FOR ENERGY SAVING: EIFS MAIN LEVER
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 4
WHY EIFS?
• EIFS has proved to have a superior energy efficiency by reducing heat transmission by approx 50%
• Improved energy efficiency helps to reduce harmful emissions typically associated with energy productionsuch as CO2 emissions and other by-products
• Design Flexibility and Decorative Finishing
• Superior EIFS energy efficiency reduces required air conditioning equipment capacity and limits the physical effects of temperature fluctuations hence reducing structural stress
• EIFS can be applied to new and existing structures.
• EIFS is the ONLY solution for insulating existing buildings
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 5
MOST IMPORTANT COMPONENTSREQUIREMENTS
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 6
MOST IMPORTANT COMPONENTS
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 7
MOST IMPORTANT COMPONENTSREQUIREMENTS ON THE FRESH AND HARDENED MORTAR
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 8
MOST IMPORTANT COMPONENTSADHESIVE AND BASECOAT MORTAR
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 9
MOST IMPORTANT COMPONENTSMEASUREMENT OF TENSILE ADHESION STRENGTH ON EPS
pull-off testbasecoat
EPS (Expanded Polystyrene Panel)
basecoat
EPS (Expanded Polystyrene Panel)
Force
with 50 N/s
Cut in the basecoat
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 10
MOST IMPORTANT COMPONENTSADHESIVE AND BASECOAT MORTAR – SEM ANALYSIS
x 50 times
x 3000times
Polymer domain after film formationbase coat EPS
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 11
MOST IMPORTANT COMPONENTSADHESIVE AND BASECOAT MORTAR – SEM ANALYSIS
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 12
MOST IMPORTANT COMPONENT BASECOAT MORTARIMPACT RESISTANCE
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 13
TEST AND CONVERSION JOULE IN CM OR CM IN JOULE
weight
Min. req..
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 14
MOST IMPORTANT COMPONENT BASECOAT MORTAR IMPACT TEST WITH 500 GRAM STEAL BALL
e.g. 4% RDP
e.g. 1
% RDP
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 15
MOST IMPORTANT COMPONENTSTOPCOAT
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 16
MOST IMPORTANT COMPONENTS TOPCOATCAPILLARY WATER ABSORPTION
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 17
MOST IMPORTANT COMPONENTSINSULATION PANELS
1.212088Concrete
0.731380Hollow brick
1.202000Plaster
0.281.25Air gap
0.0424.0Polystyrene boards
0.951400Roof bricks
0.381450Sand
1.352145Cement tiles
Thermal conductivity
(W/m °C)
Density
(kg/m3)
Construction material
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 18
MOST IMPORTANT COMPONENTSINSULATION PANELS
8 - 500≥ 20≥ 14Density
(Kg/m3 )
Flame proofB1 or B2B1 or B2Flame class
18 - 25020 - 250The coefficient of watervapour resistance ‘’μ’’
0,0400,028 - 0,0310,033The coefficient of heat
conduction“λ”
MINERALWOOL
( MW )
EXTRUDED
POLYSTYRENE
( XPS )
EXPANDED
POLYSTYRENE
( EPS )
TECHNICAL
PROPERTIES
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 19
MOST IMPORTANT COMPONENTSFLAMMABILITY STANDARDS CLASSIFICATION AS PER EN 13501-1: May 2007
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 20
MOST IMPORTANT COMPONENTSFLAMMABILITY STANDARDS TEST METHODS
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 21
MOST IMPORTANT COMPONENTSDOWEL
• To be applied 24 h after adhesive has dried.
• 2 – 4 pc/m² typically in Europe
• 10 pc/ m² as per Dubai Municipality requirements
• Fastening systems such as shot nails, screwed nails or expansion bolts.
• Minimum fastener penetration: 7cm for ALC block, 4cm for brick or concrete
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 22
CRITICAL FACTORSTHERMAL BRIDGES
source ETAG 004 Edition 2004
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 23
CRITICAL FACTORSHUMIDITY
• Water vapour diffusion has to beconsidered in order to prevent thebuilt up of condensate which cancause damages.
• In hot an humid climates with AC a permanent water vapourpressure difference betweenoutside and inside air exists.
• High humidity penetrating in theconcrete in combination with high temperatures can acceleratecarbonation and corrosion of thereinforcement.
source „WDVS in anderen Klimazonen“ by Dr. Künzel
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 24
NORMS AND REGULATIONS
• The Insulation Requirement by Dubai Municipality (Administrative order No 77 in 2001)
U value less 0.1 Btu/ U value less 0.1 Btu/ °°F.ftF.ft²². h or 0,57 W/(m. h or 0,57 W/(m²².K) for walls..K) for walls.
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 25
NORMS AND REGULATIONS THE MOST IMPORTANT GUIDELINE ETAG 004
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 26
STANDARDS AND NORMS
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 27
Two individual walls at the climate chamber tested at the same time
(appr. 24 tests/year)
Test wall preparation for the hygro-thermal test
NEW EOTA RIGBETTER SERVICE FOR OUR CLIENTS
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 28
STANDARDS AND NORMS (EOTA WALL)(ETAG 004 5.1.3.2.1)
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 29
Cold & Dry Area
Tropic Climate Area
Hot Humid Summer& Cold Winter Area
Beijing
Shanghai
Guangzhou
30°
20°
40°
50°
North
TESTING THE EFFECTS OF EIFS UNDER PRACTICAL CONDITIONS IN DIFFERENT CLIMATIC ZONES IN CHINA
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 30
AimProve effectiveness of EIFS to the Chinese buildingindusty under the existing climatic conditions
Approach• Two identical model houses – one with, one without
EIFS – in Beijing, Shanghai, Guangzhou• Cooperation with Customers to build houses• Cooperation with the Universities Tsing Hua, Tongji
and South China Science & Technology for data collection and interpretation
• Spreading message in seminars, media, to associations, government etc.
Time line Oct. 2002 – Oct. 2003
AimProve effectiveness of EIFS to the Chinese buildingindusty under the existing climatic conditions
Approach• Two identical model houses – one with, one without
EIFS – in Beijing, Shanghai, Guangzhou• Cooperation with Customers to build houses• Cooperation with the Universities Tsing Hua, Tongji
and South China Science & Technology for data collection and interpretation
• Spreading message in seminars, media, to associations, government etc.
Time line Oct. 2002 – Oct. 2003
Beijing北京
North
Shanghai上海
East
Guangzhou广州
South
ONE YEAR MODEL HOUSE PROJECT WITH CHINESE UNIVERSITIES PROVES EFFECTIVENESS OF EXTERIOR INSULATION FINISHING SYSTEMS
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 31
SAMPLES HOUSES WITH AND WITHOUT EIFS
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 32
SAMPLES HOUSES WITH AND WITHOUT EIFS
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 33
SAMPLES HOUSES WITH AND WITHOUT EIFS
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 34
TEMPERATURE VARIATIONS INSIDE THE MODEL HOUSES WITH AND WITHOUT EIFS DURING THE COLD AND HOT SEASON IN CHINA
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31-10-8-6-4-202468
101214161820
time/d
Tem
pera
ture
[deg
r. C
]
During coldest month
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 3118
20
22
24
26
28
30
32
time/d
During the hottest month
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 35
0
10
20
30
40
50
Beijing Shanghai Guangzhou
WinterSummer
Average reduction of electricityconsumption in %,Oct. 2002- Oct. 2003
EIFS ACHIEVE CONSIDERABLE REDUCTION OF ENERGY USED TO HEAT AND COOL IN THREE DIFFERENT CLIMATIC ZONES
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 36
COST MODELENERGY SAVING CALCULATION
• Consider a house of 200 m² without EIFS
• The Total Thermal Resistance = 0.104+0.03 = 0.17 m².K/W
• Total U value = 1/ 0.17= 5.8823 W/mk
• Heat loss = U * Area * dT( standard temp difference) = 5.8823* 200 * 17 = 20000 W
= 0.015/0.50= 0.03
0.500.015Normal Plaster
= 0.24/ 2.29 = 0.104
2.290.24Brick wall
Thermal Resistance
U value (W/m²k)Thickness (m)Media
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 37
COST MODELENERGY SAVING CALCULATION
• Consider a house of 200 m² with EIFS
• The Total Thermal Resistance = 0.104+0.03 + 0.45 = 0.548 m².K/W
• Total U value = 1/ 0.548 = 1.71 W/m²k
• Heat loss = U * Area * dT( standard temp difference)= 1.71* 200 * 17 = 5821 W
= 0.15/ 0.33= 0.45
0.330.15EIFS
= 0.015/0.50=0.03
0.500.015Normal Plaster
= 0.24/ 2.29 = 0.104
2.290.24Brick wall
Thermal Resistance
U value (W/m²k)Thickness (m)Media
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 38
COST MODELENERGY SAVING CALCULATION
• Conclusion: The Energy Saving between the two cases
= 20000- 5821 = 14718 W
• In average you can save between 60-70 % of the heating oil required.
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PERFORMANCE REQUIREMENTS AND STANDARDS FOR EIFS
Mohammed Sanaobar, L-B-E-T/TC Dubai, 25-06-2008, Slide 39