Realizing Sustainable Buildings by Using Thermal...
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Realizing Sustainable Buildings by Using Thermal Installation Systems 15th Dec 2015 0 of 28
CREATING TOMORROW`S SOLUTIONS
Realizing Sustainable Buildings by Using Thermal Installation
Systems (ETICS/EIFS)
Mohammed Sanaobar, 15th December 2015
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Contents
� Introduction
� Advantages of EIFS/ETICS
� Fire Mechanisms
� EIFS Critical Factors
� National Regulation
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� This research addresses importance of the thermal insulation for construction
building in the Middle East & Africa.
� In order to reduce the energy demand for cooling and heating, we should
consider all the energy schemes both inside and outside buildings.
� Exterior Insulation and Finishing Systems (EIFS), have been developed in
Europe in the early seventies and since then have proven to be a reliable solution
for reducing energy consumption inside buildings. Nowadays EIFS is applied
world-wide on external walls of buildings in order not only to reduce energy costs
by 30% to 70% for heating and cooling systems, but also to provide a healthier
and more comfortable living environment.
� We will address also the fire regulation related to the system.
Presentation Description
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Mohammed Sanaobar
Head of Technical Center, Wacker Chemical Middle East.
� Currently Head of Technical Center at WACKER CHEMICALS MIDDLE EAST
and the Head of WACKER ACADEMY in Dubai. I got an MBA in Project
Management from U21 University in Singapore and a Bachelors of Science in
Chemical Engineering from the American University in Sharjah. He started his
career fourteen years ago working at the laboratories of the Dubai Municipality in
the United Arab Emirates.
� I worked as a Project Manager at the petrochemical plant of SASOL Dubai for
five years.
� In 2006, I joined WACKER CHEMICALS MIDDLE EAST to oversee the technical
services offered to the clients within the Middle East and Africa, improve the
development of dry mix formulations, and administer safety and the quality
measures that meet company guidelines and requirements of the ISO
certifications.
Presentation Description
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1. The advantages of using the external Insulation system .
2. The mechanisms of the fire travelling through cladding system
3. The cortical success factor with EIFS/ ETIC application
4. EIFS/ ETICS & the UAE Fire & Life Safety code of Practice
Learning Objectives
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Contents
� Introduction
� Advantages of EIFS/ETICS
� Fire Mechanisms
� EIFS Critical Factors
� National Regulation
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Building envelop insulation' Why?
� Reduce energy consumption related
to climate control equipment usage
in buildings
� Reduction in energy cost for
buildings
� Reduction in carbon footprint of
buildings operation
� Increase thermal comfort for
buildings occupants
� Preserve property and structure
� Depending on design, could shift
electricity peak load by more than 12
hours.
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Non-ventilated façade application (ETICS/EIFS)
� Advantages:
� Efficient insulation (no thermal bridges)
� Cost saving during building
construction as well as operation
� Provides freedom in design options
� Durable
� Light weight
� ETICS/EIFS is the only option to retrofit a
building and improve the performance of
the building envelope by a factor of 10 or
more.
� When a proper maintenance procedure
is in employed, the system expected life
could exceed 60 years.
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Ventilated facades Non-ventilated facades
Typical system consist of an inner structure insulated
from its outer face with an external cladding
assembly with a cavity generally after the insulation.
Typical system consist of an inner structure insulated
from its outer face with the external finish applied
directly on the insulation with no gaps.
Generic types of insulated cladding systems
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Contents
� Introduction
� Advantages of EIFS/ETICS
� Fire Mechanisms
� EIFS Critical Factors
� National Regulation
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� Fire event could initiate from
inside or outside of a
building.
� If left to develop, the fire will
reach flashover and extend
to other building
compartments.
� If the fire extends to a
compartment at the outer
perimeter then it could
breakout from any opening.
� Exterior cladding interaction
with flames could impact the
risk of fire spread.
A focus on the safety in the event of fire:
Mechanism of fire spread
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Fire travelling through cladding system
� the effect of cavities
� Cavities could be part of the exterior
cladding design or a result of the fire event
itself.
� When confined by external cladding, the
flames elongate to 5 to 10 times its original
length seeking oxygen and fuel.
� If the material used for cladding or insulation
contribute to the propagation of fire, the
potential exist for the fire to affect multiple
stories simultaneously.
� In non-ventilated facades (ETICS/EIFS) the
cavities does not exist by default.
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Weak points within facades in an event of fire
� Above openings (windows or doors).
� Area with accessibility – high traffic or
ground level.
� Exposed (non-covered surfaces) during
installation.
� The goal is to contain fire from spreading
directly above the origin.
� Use fire barriers
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Fire barriers� how does it work?
Fire break protection:
� Applied continuously (without any gaps)
to full building circumference. The goal of
this method is to provide an efficient
limitation of fire in the thermal insulation
layer in each story where it is applied.
Lintel protection:
� Applied above every opening in the
façade (door or window). The goal of this
method is to prevent fire penetration from
an internal source where the fire breaks
out through the opening to the thermal
insulation layer
Fire break protection Lintel protection
Always use a non-burnable insulation
medium for the fire barrier (class A2 –EN 13501-2 or non-combustible – ASTM
E136)
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Fire-resistant coatings
VAE/VC technology / fire behavior
Standard SA Vs Terpolymer VAE/VC
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Contents
� Introduction
� Advantages of EIFS/ETICS
� Fire Mechanisms
� EIFS Critical Factors
� National Regulation
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Critical factors – application of EIFS
Installation of the insulation boards
The insulation boards are installed
bottom-up in a running-bond pattern.
Gaps should be avoided.
The insulation boards are installed
bottom-up in a running-bond pattern.
Gaps should be avoided.
Interlock edges of
the insulation boards at corners.
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At corners of wall penetrations the „L-cut“ is recommended to avoid cracks.
Joints of the boards
must not follow
window and door
openings.wrongcorrect
Critical factors – application OF EIFS
Installation of the insulation boards
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Critical factors – application of EIFS
Add-on products
Starter track with
weep holes
Corner profiles at
window openingsWindow sills with
weather stripping
All of the add-on products need to be designed to prevent water ingress,
crack formation and thermal bridges.
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Critical factors – application of EIFS
Add-on products-fibre mesh
RECOMMENDED DENSITY : 145 -155 g/m3
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Critical factors – application of EIFS
Add-on products-dowels
� 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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ADDITIONAL IMPORTANT COMPONENT
Critical factors – application of EIFS
Add-on products-dowels
Installation flush with
the surfaceplate anchor with screw
hammer-in anchor
Please note that mechanical fastening does not replace the adhesive mortar.
This would result in a high susceptibility to cracking.
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Critical factors – application of EIFS
Humidity
� Water vapour diffusion has
to be considered in order
to prevent the built up of
condensate which can
cause damages.
� In hot an humid climates
with AC a permanent
water vapour pressure
difference between
outside and inside air
exists.
� High humidity penetrating
in the concrete in
combination with high
temperatures can
accelerate carbonation
and corrosion of the
reinforcement.
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Contents
� Introduction
� Advantages of EIFS/ETICS
� Fire Mechanisms
� EIFS/ETICS Critical Factors
� National Regulation
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Regulations for ETICS/EIFS acceptance (for the assembly)
� Mid-rise, High-rise and special use buildings - Specified performance criteria as
per LPS 1582 or NFPA 285 with test results equivalent to
� Class 1 or A1 when tested to FM 4880 and FM 4881
� Class A2 when tested as per EN 13501-1 or ISO 9705
� BS 8414 Parts 1 (on face of the building) or 2 (fixed to structural steel frame) as
intended
� Low-rise buildings - Specified performance criteria as per LPS 1582 or NFPA 285
with test results equivalent to
� Class 1 or A1 when tested to FM 4880 and FM 4881
� Class B1-s2, d0 when tested as per EN 13501-1
� BS 8414 Parts 1 (on face of the building) or 2 (fixed to structural steel frame) as
intended
Latest Dubai Civil Defence regulation
' a trigger for local development
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NFPA 286 is tested Locally by TBWIC
� This standard provides a test method for
determining the fire propagation
characteristics of exterior non-load-
bearing wall assemblies and panels used
as components of curtain wall
assemblies that are constructed using
combustible materials or that incorporate
combustible components.
� The Intermediate Scale, Multistory Test
Apparatus (ISMA) consists of two rooms
arranged vertically, which are open in the
front. The test specimen is constructed
on a frame, which is placed against the
apparatus and sealed to it. There is a
burner in the lower room, and also a
‘window burner’ which is placed from the
outside and ignited after 5 minutes.
Thomas Bell-Wright International Consultants is a 20 + year old Dubai-based, multi-accredited, privately held engineering firm providing independent
Testing, Inspection and Certification (TIC) services primarily for the building construction sector
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NFPA 286 is tested Locally by TBWIC
The Test is checking the ability of:
� Resist flame propagation over the
exterior face of the wall assembly
� Resist vertical flame propagation within
the combustible components from one
story to the next
� Resist vertical flame propagation over
the interior surface of the wall assembly
from one story to the next
� Resist lateral flame propagation from the
compartment of fire origin to adjacent
compartments or spaces
There are Some of subsystems that get
tested such as Insulation, Cavities,
Weather Barriers, Fire Barriers, & Brackets
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� 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 production such as CO2 emissions and other by-products
� 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.
� The application of ETICS/ EIFS is determining factor for the sustainability of the
system
� Restrict the use of the insulation medium (EPS) to the fire retarded grade (SE) &
employ a fire barrier system
Conclusion
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THANKS FOR YOUR ATTENTION
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