Sustainability design 120303

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An Introduction to
Sustainability Design
By
Professor Moustafa M. Elsayed
Consultant, EGEC
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Outline
• Sustainability
• Sustainable Sites
• Efficient use of Water
• Energy and Atmosphere
• Efficient use of Energy
• Materials and Resources
• Indoor Environmental Quality
• Sustainability Design Authorities
• Assessing Sustainability
• Rating Systems
• LEED (USA)
• QSAS (Qatar)
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Sustainability
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Sustainability
Defining Sustainability
• Meeting the needs of the present without compromising the
ability of future generations to meet their own needs”
• The idea of sustainability, is to ensure that our actions and
decisions today do not inhibit the opportunities of future
generations.
• The concept of maximizing the effectiveness of resources use
while minimizing the impact of that use on the environment
Economy Ecology
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Sustainability
Impacts
Resulting
from Built
Environment
Air
Pollution
Land Use &
Contamination
Fossil
Fuels
Depletion
Water
Depletion
Water
Pollution
Materials
Depletion
Human
Health
Climate
Change
Impacts of Construction Industry
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Providing building services engineers with guidance on how to
respond to the sustainability design.
It describes:
• the actions that building services engineers should take to
enable their work to deliver sustainable outcomes
• how they can influence the work done and decisions made by
clients and other professionals.
To create a sustainable built environment that minimizes
ecological impact through the development of a sustainability
rating system supported by a set of performance based
standards that addresses the specific regional needs and
environment of Qatar.
Sustainability
Objective
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Outline
• Sustainability
• Rating Systems
• LEED (USA)
• QSAS (Qatar)
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Sustainable Sites
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Sustainable Sites
• Protect natural and agricultural areas
• Protect environment
• Reduce air pollution
• Reduce fuel fossil consumption
• Reduce material depletion
• Reduce land contamination
• Reduced site disturbance
• Reduce water depletion & pollution
• Reduce light pollution
• Reduce noise
• Protect human health
• Manage stormwater
Objectives
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Sustainable Sites
Transportation
• Use of Bicycles
• Public transportation
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Sustainable Sites
Heat Island Effect -1
• The term "heat island" describes built up areas that are hotter
than nearby rural areas.
• The annual mean air temperature of a city with 1 million people
or more can be 1–3°C warmer than its surroundings.
• In the evening, the difference can be as high as 12°C.
• Heat islands can affect communities by increasing summertime
peak energy demand, air conditioning costs, air pollution and
greenhouse gas emissions, heat-related illness and mortality
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Sustainable Sites
Heat Island Effect -2
• When examining cities in arid
and semi-arid regions – such
as North Africa and the
American Southwest --
scientists found that they are
only slightly warmer than
surrounding areas in summer
and sometimes cooler than
surrounding areas in winter.
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Sustainable Sites
Heat Island Effect - 3
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Sustainable Sites
What Can Be Done for Heat Island Problems?
(Rural, Arid, or Semi-Arid Surroundings)
• Increasing tree and
vegetative cover
• Creating green roofs (also
called "rooftop gardens" or
"eco-roofs")
• Installing cool—mainly
reflective—roofs
• Using cool pavements (high
reflective pavement
products)
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Sustainable Sites
High Reflectivity Roofs & Pavements
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Outline
• Sustainability
• Rating Systems
• LEED (USA)
• QSAS (Qatar)
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Efficient Use of Water
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• Building Water demand: Identifying how
and where reductions in the use of
potable water may be made.
• Using alternative water sources, efficient
distribution and fixtures
• Credit Requirements of Water Saving
1. Minimum Interior Water Use
2. Water Monitoring
3. Improved Interior Water Use
4. Exterior Water Use Reduction:
Landscaping & Water Features
Overview
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Water Efficiency
• Reduce quantity of water needed for the building
• Reduce municipal water supply and treatment burden
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• Potable water: only for drinking, cooking,
bathing, wadoaa, and/or people personal
usage
• Using water-efficient fixtures and appliances
• Faucet bubblers, low flow showerheads, and
flow restrictors to further reduce water
consumption
• Recycled gray water: flushing tanks, and/or
similar activities such as fire fighting water
make up.
• Storm water and water treated by on-site STP
or conveyed by the public agency: non-potable
uses
• Reducing irrigation water demand: modern
irrigation technologies as driblet system.
Design Aspects
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• Minimize peak stormwater discharge
• Protect the stormwater drainage system and receiving
water bodies from pollutant loading during and after
storm events.
• Credit Requirements
1. Demonstrate that the post-development peak
runoff rate and quantity does not exceed the pre-
development peak runoff rate
2. Evidence that the building was constructed with the
post-development peak runoff rate and quantity
does not exceed the pre-development peak runoff
rate
Stormwater Management
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Outline
• Sustainability
• Rating Systems
• LEED (USA)
• QSAS (Qatar)
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Energy & Atmosphere
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Energy & Atmosphere
Global Warming
• Solar Radiation: Short
wave
• Reflection from surface of
earth
• Greenhouse effect
• CO2 and other air
pollutant gases
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Energy & Atmosphere
Burning of Fusel Fuel
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Energy & Atmosphere
Effects of Global Warming
Rising Sea Level Increased Temperature
Habitat Damage and
Species Affected Changes in Water Supply
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Energy & Atmosphere
Ozone Depletion
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Energy & Atmosphere
Goals
• Support ozone protection protocols
• Encourage renewable and alternative energy sources
• Establish energy and efficiency performance
• Optimize energy efficiency
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Energy & Atmosphere
Renewable Energy – Wind, Photovoltaic, and W. Heaters
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Energy & Atmosphere
Renewable Energy – Solar Power
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Outline
• Sustainability
• Rating Systems
• LEED (USA)
• QSAS (Qatar)
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Efficient Use of Energy
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Global Energy Consumption
4.52
2.7
2.96
0.286
1.21
0.286
0.828
0
1
2
3
4
5
TW
Oil Coal Biomass Nuclear
Total: 12.8 TW TW = TeraWatt (1012 watts) 34

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Energy Consumption
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Energy Efficiency
2010 2015 2020 2025 2030
36000
Year
Energy(kBtu/yr)
ASHRAE BOD Goal
Standard 90.1Standard 90.1
Standard 189Standard 189
AEDGAEDG
Energy Reduction Proposal
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Energy Efficiency Terms
• Energy Use Intensity (EUI):
BTU/Sq. Ft./Year
• CBECS: Commercial Building
Energy Consumption Survey
• ASHRAE 90.1 is a standard
that provides minimum
requirements for energy
efficient designs for
buildings except for low-rise
buildings.
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Energy Efficiency
All are “site” values in BTU / Square
Foot / Year
• 91,000: 2003 CBECS data
• 51,000: ASHRAE 90.1-2004
• 47,000: ASHRAE 90.1-2007
• 36,000: Target for 90.1-2010
• 25,000: Energy Efficient
Building
• 0: Net Zero Energy Building -
Requires renewable energy
(PV, Wind)
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0
0% 100%
Source Energy Savings (%)
TotalAnnualCosts($/year)
Lease Costs (or Finance Costs)
utility bills
cash flow
1
2
The Path to a Net Zero Building
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• Energy calculation and assessment
process
• Reducing demand for energy: passive
environmental design, appropriate
selection of highly efficient mechanical
and electrical equipment, and the
facilitation of renewable energy
• Credit Requirements of Resourceful
Energy
1. Minimum Energy Performance
2. Energy Monitoring
3. Ozone Impacts of Refrigerants
4. Cool Building Strategies
5. Renewable Energy
Overview
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Lighting
Efficient Use of Energy - Lighting
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Lighting
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Lighting – External Lighting
Photovoltaic
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Lighting – Fluorescent
• Models: “T-12”, “T-8”, or “T-5”.
• The names come from the size
of their diameter per eighth
inch. For example, a T-12 lamp
is 12/8 inch in diameter
• T-8 lights are the most cost
effective
• T-5 lamps are the most energy
efficient
• Installation of energy efficient
fluorescent lamps (T-5) in place
of conventional fluorescent
lamps(T-12).
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Lighting -CFL
• CFL is a Compact Florescent Lamp
that ensures 80% of energy saving
compare to equivalent light
output of conventional
incandescent lamp.
• CFL is a kind of Energy Efficient
Lamp which gives us required
lumen by consuming fewer watts.
• CFLs contain a very small amount
of mercury sealed within the glass
tubing and thus require care in
handling and disposal.
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Lighting -CFL
• Low electrical consumption as compared to conventional
lighting products
• About 80% energy saving over incandescent bulbs.
• Long life up to 10,000 hours
• It can operate within 130-280 V range
• Low cost of maintenance
• High luminous efficiency
• Available in different colors to create desired ambience
• Lamps designed for power factor higher than 0.85
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Lighting – Led Lamps
• A LED (Light Emitting Diode) lamp is a
solid-state lamp that uses light-
emitting diodes as the source of light.
• The operational life of current white
LED lamps is 100,000 hours. This is 11
years of continuous operation, or 22
years of 50% operation.
• Reduces energy costs — uses at least
75% less energy than incandescent
lighting, saving on operating expenses.
• Reduces maintenance costs
• Reduces cooling costs — LEDs produce
very little heat. 47
Efficient Use of Natural Lighting
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Occupancy Sensors
Benefits Application
Energy Saving Private Offices
More attractive Restroom
Compliance with Energy
Code
Conference Room
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HVAC – Building Envelope
Efficient Use of Energy - HVAC
• Thermal insulation of envelop
• Air tight construction
• Install high-performance doors and
windows
• Highly insulating and active glazing
• Light color envelop
• Building orientation
• Minimize infiltration and x-filtration
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HVAC – Cooling Load
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HVAC – Cooling Load
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HVAC - Design
• Energy calculations
• Indoor design
conditions
• Outdoor design
conditions
• Internal loads
• Factor of safety
• Diversity factors
• Use of environmental
friendly refrigerants: Global
warming & Ozone
depletion
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HVAC - Design
• Lower duct friction rate (0.08”
WC/100 ft)
• Reduce interior ductwork
leakage
• Increase duct insulation
• Ductwork sealing: Class B
• Use day lighting and occupancy
controls
• Use higher motor and
transformer efficiencies
• Use O/A motorized dampers
• Use energy metering
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HVAC – Use of Efficient Systems
• Variable Air Volume
• Primary/Secondary
Chilled Water System
• Demand-controlled
ventilation (CO2 sensors)
• Heat Pumps
• Utilizing heat rejection
from condensers
• Efficient air distribution
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HVAC – Use of Efficient Systems
Economizer Cycle Heat Recovery Systems
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HVAC – Absorption Chillers
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HVAC – Construction & Operation
• TAB
• HVAC control system
• Thermostat setting
• Keep filters clean
• Keep heat transfer surfaces
clean
• Replace, renovate aging loads
(motors, control, etc .)
• Ensure intelligent load control
(variable speed drives,
regulation systems, ...)
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BMS
Efficient Use of Energy - BMS
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BMS
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BMS
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Variable Speed Drives
• A small reduction in
speed can make a big
difference in the energy
consumption
• Many fans and pumps
systems run at less than
full capacity a lot of the
time, a variable speed
drive huge savings
produce
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Outline
• Sustainability
• Rating Systems
• LEED (USA)
• QSAS (Qatar)
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Material & Resources
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Materials and Resources
• Reduce amount of materials needed
• Use materials with less environmental impact
• Reduce and manage waste (Recycle and Reuse Materials)
Overview
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Materials and Resources
• Energy efficiency in the
building
• Human and environmental
health
• Durability, maintenance and
performance
• Resource limitation
• Waste management
Selection Bases
• Upstream = raw material
extraction & transportation
• Upstream = manufacturing &
transportation
• Direct = Construction
• Downstream = Building
occupancy use and
maintenance
• Post-usage= Demolition
• Post-usage = recycling,
reusing or disposing of a
material
Material Lifecycle
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Outline
• Sustainability
• Rating Systems
• LEED (USA)
• QSAS (Qatar)
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Indoor Environmental Quality
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• Ensure thermal comfort and system controllability
• Establish good environmental quality
• Eliminate, reduce, manage the sources of indoor pollutants
• Provide for occupant connection to the outdoor environment
Overview
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• It is condition of mind which
expresses satisfaction with
the thermal environment and
is assessed by subjective
evaluation.
• Six Factors for comfort
• Metabolic rate
• Clothing insulation
• Air temperature
• Radiant temperature
• Air speed
• Humidity
Thermal Comfort
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Variables Affecting Comfort
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• Productivity is
inversely
proportional with
comfort
• Motivation is more
important than
comfort
• Design conditions
Thermal Comfort
For 80% occupant acceptability
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• Building occupants
experience acute health and
comfort effects that appear
to be linked to time spent in
a building
• Non-specific symptoms such
as eye, nose & throat
irritation, mental fatigue,
headaches, nausea and skin
irritation (WHO, 1983)
Sick Building Syndrome (SBS)
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• Inadequate Ventilation (52%)
• Inside Air Contaminants
(17%)
• Outside Air Contaminants
(11%)
• Biological Agents (10%)
• Building Materials (3%)
• Unknown (12%)
Causes of SBS
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Where to find contaminants?
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Solutions to SBS
• Pollutant source removal or
modification
• Air cleaning; typical furnace filter,
etc.
• Increasing ventilation rates
• Increase awareness
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Rates of Outdoor Air
0
10
20
30
40
50
60
70
1835
1842
1849
1856
1863
1870
1877
1884
1891
1898
1905
1912
1919
1926
1933
1940
1947
1954
1961
1968
1975
1982
1989
1996
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Outline
• Sustainability
• Rating Systems
• LEED (USA)
• QSAS (Qatar)
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Sustainability Design Authorities
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Do we need specific guidance on sustainability?
• Definitions are not always that
helpful in practice
• Need to define what you want
to achieve in your context
• Education, training and
awareness raising
• Means of assessing design
options and applications
• Level playing field for
developers
• Showing the future direction
of policy
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Finding the Way
• What is the range of issues to
consider?
• How are they linked together?
• What standards and advice are out
there?
• What might decision makers expect?
• What does good practice look like –
marketing opportunities?
• How can I do more – simple “wins”?
• What might I have to consider in the
future?
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Outline
• Sustainability
• Rating Systems
• LEED (USA)
• QSAS (Qatar)
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Assessing Sustainability
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Method 1: End-User Impact
• Calculation of negative
externalities created by the
direct actions of the end users
• Externalities (carbon
footprint, hazardous gas
emissions, waste production,
etc.) are calculated by looking
at the consumption processes
of goods and services.
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Method 2: Lifecycle
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Method 2: Lifecycle
• 75 % of the life cycle costs of
a building are in the
operation and alterations of
the facility over 25 years.
• Renovations in existing
buildings can yield energy
savings of up to 30%.
• Long term sustainable
maintenance offering
preventive maintenance can
keep those savings in place
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Method 3: Lifestyle
• Focus on lifestyles of the
users instead of their impacts
• Lifestyle is a significant factor
that affects use of energy in
buildings
• Examples: bigger screen TVs,
more home appliances to
ease the life, air conditioning
systems, etc.
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Outline
• Sustainability
• Rating Systems
• LEED (USA)
• QSAS (Qatar)
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Rating System
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Rating Systems
[UK] BREEAM, Building Research Establishment's
Environmental Assessment Method, United Kingdom -
Released 1990
[US] LEED, Leadership in Energy and Environmental Design,
United States - Released 2002
[Canada] Green Globes, Canada • Released 2002
[Japan] CASBEE, Comprehensive Assessment System for
Building Environmental Efficiency, Japan - Released 2002
[International] SBTool, Sustainable Building Tool
Canada - Released 2002 90

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Rating Systems
[Hong Kong] CEPAS, Comprehensive Environmental Performance
Assessment Scheme, Hong Kong - Released 2007
[UK] BREEAM Gulf
Building Research Establishment's, Environmental Assessment
Method, United Kingdom, Released 2008
[Abu Dhabi] ESTIDAMA
Estidama New Buildings Design Guidelines (ENBDG)
Abu Dhabi, UAE, Released 2008
[Qatar] QSAS
Qatar Sustainability Assessment System, Qatar, Launched 2009
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Outline
• Sustainability
• Rating Systems
• LEED (USA)
• QSAS (Qatar)
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LEED (USA)
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LEED (USA)
Definition
• Leadership in Energy and
Environmental Design is an
international green
building rating system
which is widely used in the
US and other countries.
• It consists of a suite of
rating systems for the
design, construction and
operation of high
performance green
buildings, homes and
neighborhoods.
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LEED (USA)
History
• LEED was established in 1998.
• LEED NCv1.0 was a pilot version issued in 1998.
• These projects helped inform the USGBC of the requirements
for such a rating system, and this knowledge was incorporated
into LEED NCv2.0.
• LEED NCv2.2 was released in 2005, and v3 in 2009.
• Today, LEED consists of a suite of nine rating systems for:
• Green Building Design & Construction 2
• Green Interior Design & Construction 2
• Green Building Operations & Maintenance 2
• Green Neighborhood Development 1
• Green Home Design and Construction 2
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LEED (USA)
LEED 2009 Scoring
• There are 100 possible base points distributed across five
major credit categories:
• Water Efficiency
• Plus an additional 6 points for Innovation in Design and an
additional 4 points for Regional Priority.
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LEED (USA)
LEED 2009 Scoring Levels
• Certified: 40–49 points
• Silver: 50–59 points
• Gold: 60–79 points
• Platinum: 80 points and
above
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LEED (USA)
Sustainability in LEED
0
5
10
15
20
25
30
35
40
Distribution of LEED points (%) Energy gets the most attention
from designers. Why?
• In LEED 2009, achieving 40
points is enough to attain a
LEED certification.
• There are 35 available points
under energy credits
• Energy credits can also lead to
achievements in other credits
• Creating buildings that have
less operating costs, higher
market values
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LEED (USA)
LEED and Energy Use
• In 2006, US Green Building Council (USGBC) conducted a
research in corporation with the New Building Institute
(NBI) on 121 buildings to determine the energy use in LEED
certified buildings.
• Result: LEED certified buildings consume 25-30% less
energy per floor area than the national average provided
by Commercial Building Energy Consumption Survey
(CBECS)
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LEED (USA)
Assessment in LEED
• water use
• use of material and resources,
• construction pollution
prevention
• heat island effect
• low emitting materials
• storm water control
Performance of building
Performance of occupant
(End-User Impact)
Calculations are through per
unit area and per unit volume
Technological fixes as
solutions
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LEED (USA)
Assessment in LEED
• 10,000 square feet (929m2).
• Use about 191,000 kilowatt
hours per year.
• After installation of solar
panels, rain water collection
systems, solar roof fans and
geothermal heating systems.
energy consumption of the
house decreased only by
11%.
• A LEED Gold certification
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LEED (USA)
LEED - EB
• For existing buildings LEED has
developed LEED-EB which is for
Operation & Maintenance.
• Research results: tremendous Return on
investment (ROI).
• Saving: an average cost saving of $6.68
per square foot of floor space.
• Overall cost of LEED-EB implementation
and certification: an average of $2.43
per square foot of floor space.
• Overall cost of LEED-EB implementation
and certification: significantly reduced if
automation and technology are
integrated into the implementation. 102

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LEED (USA)
Disadvantages - 1
• LEED is a design tool and not a
performance measurement tool.
• LEED is not climate-specific
(designers may make materials
or design choices that garner a
LEED point, even though they
may not be the most site or
climate-appropriate choice
available).
• LEED is a measurement tool for
green building in the United
States and it is developed and
continuously modified for areas
in the U.S.
103
LEED (USA)
Disadvantages - 2
• LEED rating system is not
sensitive and does not vary
enough with regard to local
environmental conditions (a
building in city “X” would
receive the same credit as a
building in city “Y” for water
conservation, though the
principle is more important in
the latter case).
• LEED certification costs require
money that could be used to
make the building in question
even more sustainable.
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Outline
• Sustainability
• Rating Systems
• LEED (USA)
• QSAS (Qatar)
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QSAS (Qatar)
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Definition of QSAS
QSAS (Qatar)
• Qatar Sustainability
Assessment System (QSAS) is a
green building certification
system developed for Qatar.
• The primary objective of QSAS
is to create a sustainable built
environment that minimizes
ecological impact while
addressing the specific
regional needs and
environment of Qatar
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QSAS (Qatar)
• QSAS consists of a series of sustainable categories and
criteria, each with a direct impact on environmental
stress mitigation.
• Each category measures a different aspect of the project’s
environmental impact.
• The categories define these broad impacts and address
ways in which a project can mitigate the negative
environmental effects.
• These categories are then broken down into specific
criteria that measure and define individual issues.
Rating System -1
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QSAS (Qatar)
[UC] Urban Connectivity
Consists of factors associated with the urban environment such as zoning,
transportation networks and loadings. Loadings on the urban environment
include traffic congestion and air, noise, and light pollution.
[S] Site
Consists of factors associated with land use such as land conservation or
remediation and site selection, planning and development.
[E] Energy
Consists of factors associated with the energy demand of buildings, the
efficiency of energy delivery, and the use of fossil energy sources that
result in harmful emissions and pollution.
[W] Water
Consists of factors associated with water consumption and its associated
burden on municipal supply and treatment systems.
Categories - 1
109
QSAS (Qatar)
• These issues range from a thorough review of water
consumption to an assessment of light quality.
• Each criterion specifies a process for measuring
individual aspects of environmental impact and for
documenting the degree to which the requirements have
been met.
• A score is then awarded to each criterion based on the
degree of compliance.
Rating System - 2
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QSAS (Qatar)
Categories - 2
[M] Materials
Consists of factors associated with material extraction, processing,
manufacturing, distribution, use/re-use, and disposal.
[IE] Indoor Environment
Consists of factors associated with indoor environmental quality such as
thermal comfort and air, acoustic, and light quality.
[CE] Cultural & Economic Value
Consists of factors associated with cultural conservation and support of
the local economy.
[MO] Management & Operations
Consists of factors associated with building design management and
operations, such as sub-metering of energy usage, leak detection, and
commissioning.
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Rating System Resources
QSAS (Qatar)
• RFP Preparation
• Assessment Manuals
• Design Guidelines
• Training Manual
• Energy Manuals
• Toolkits
• Calculators
• Project Management
System (PMS
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QSAS (Qatar)
Scope Of QSAS Rating System
(I) Design (II) Construction (III) Operation
Applications Of QSAS Rating System
QSAS Commercial Buildings
QSAS Residential Buildings
QSAS Schools
QSAS Core & Shell
QSAS Neighborhood
QSAS Mosques
QSAS Hotels
QSAS Light Industries
QSAS Sports (New 2011)
QSAS Schemes
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No
Category
Criteria
Weight
UC Urban Connectivity 8.00%
UC.1 Load on Local Traffic Conditions 1.80%
UC.2 Pedestrian Pathways 1.08%
UC.3 Proximity to Amenities 0.69%
UC.4 Light Pollution 0.58%
UC.5 Noise Pollution 0.43%
UC.6 Public Transportation 1.30%
UC.7 Private Transportation 0.39%
UC.8 Sewer & Waterway Contamination 1.08%
UC.9 Shading of Adjacent Properties 0.65%
S Site 9.00%
S.1 Ecological Value of Land 2.34%
S.2 Vegetation & Shading 1.05%
S.3 Desertification 1.75%
S.4 Rainwater Runoff 1.17%
S.5 Mixed Use 0.88%
S.6 Heat Island Effect 0.58%
S.7 Adverse Wind Conditions 0.88%
S.8 Acoustic Conditions 0.35%
E Energy 24.00%
E.1 Energy Demand Performance 5.20%
E.2 Energy Delivery Performance 5.20%
E.3 Fossil Fuel Conservation 3.64%
E.4 CO2 Emissions 4.55%
E.5 NOx, SOx, & Particulate Matter 5.41%
W Water 16.00%
W.1 Water Consumption 16.00%
M Materials 8.00%
M.1 Regional Materials 1.85%
M.2 Responsible Sourcing of Materials 0.00%
M.3 Structure Reuse: On-site 0.91%
M.4 Materials Reuse: Off-site 1.54%
M.5 Recycled Materials 1.85%
M.6 Design for Disassembly 1.85%
M.7 Life Cycle Assessment(LCA) 0.00%
IE Indoor Environment 14.00%
IE.1 Thermal Comfort 1.20%
IE.2 Low-Emitting Materials 1.60%
IE.3 Natural Ventilation 1.60%
IE.4 Mechanical Ventilation 1.60%
IE.5 Indoor Chemical & Pollutant Source
Control
1.60%
IE.6 Views 1.20%
IE.7 Glare Control 1.20%
IE.8 Illumination Levels 1.20%
IE.9 Acoustic Quality 1.20%
IE.10 Daylight 1.60%
CE Cultural & Economic Value 13.00%
CE.1 Heritage & Cultural Identity 8.67%
CE.2 Support of National Economy 4.33%
MO Management & Operations 8.00%
MO.1 Commissioning Plan 2.67%
MO.2 Energy Use Sub-metering 0.89%
MO.3 Leak Detection 1.78%
MO.4 Organic Waste Management 0.00%
MO.5 Recycling Management 0.00%
MO.6 Intelligent Building Control System 2.67%
Total 100.00%
Assessment System Weighting: Commercial
QSAS (Qatar)
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Scoring
QSAS (Qatar)
115
QATAR SUSTAINABILITY ASSESSMENT SYSTEM (QSAS)
COMMERCIAL - DESIGN STAGE
Project Information
Project Name: (to be completed)
Project Location: (to be completed)
Gross Area (m2
): (to be completed)
No Category
Point
0.110
UC Urban Connectivity 0.110
S Site 0.000
E Energy 0.000
W Water 0.000
M Materials 0.000
IE Indoor Environment 0.000
CE Cultural & Economic Value 0.000
MO Management & Operations 0.000
Level Achieved 1 Star
• Displays points earned for each category,
combined total points, and rating level
achieved by the project.
• Bar chart illustrates points achieved and
the maximum attainable points for each
category
• Line chart displays QSAS rating level
achieved by the project
Points Achieved vs. Points Attainable
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.11
0.24
0.39
0.42
0.24
0.48
0.72
0.27
0.24
-0.3 -0.2 -0.1 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Management & Operations
Cultural & Economic Value
Indoor Environment
Materials
Water
Energy
Site
Urban Connectivity
Points Attainable Achieved
0.110
Score Certification Level QSAS Certification
X < 0 - Certification denied
0.0 ≤ X ≤ 0.5
Certification achieved
0.5 < X ≤ 1.0
1.0 < X ≤ 1.5
1.5 < X ≤ 2.0
2.0 < X ≤ 2.5
2.5 < X ≤ 3.0
QSAS Toolkit
Summary Tab
116

Sustainability design 120303

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