Presentation At EcoBuilding Conference

Sustainability within the
Built Environment:

Presented at the EcoBuilding Conference, in
March 2010, by Emma Kauppaymuthoo-Özsen

© Build‐Green Consulting, 2010

It is therefore clear that for
developing nations such as
Mauritius, sustainability
must be a priority.


• Minimise heat gains - design to
shade all year round
• Consider building orientation,
orientation
form, and thermal mass
• Specify a high performance
high-performance
building envelope
• Maximize passive heating, cooling,
ventilation, and daylighting

• Install efficient systems to meet remaining loads
• Ensure individual energy-using devices are as efficient as possible
• Ensure the systems and devices are p p y commissioned
y properly


The challenge
The challenge
Knowledge and technologies to produce
sustainable buildings are available.
g

Economic benefits are now well-
documented in literature.


The vicious circle of blame
The vicious circle of blame

Adopted from
David Cadman (2000)


The virtuous circle


Feedback and Adaptation
p


How Green is Green?
Measuring Sustainability


Sustainable Performance Certification
Sustainable Performance Certification
The most popular rating tools

Launch date
Launch date 1990 1998 2003
Certifying Building Research US Green Building Green Building Council
body Establishment (BRE, UK) Council (USGBC) of Australia (GBCA)
LEED Accredited
di d GreenStar Accredited
di d
Required BREEAM assessor (training, exam &
Professional Professional (training
qualifications test assessment verified by BRE)
(exam) and exam)
Offices, Retail,
Offi R t il Offices, Retail
Types of Offices, Retail, Healthcare, Multi‐
institutional
buildings residential, Education under the (other schemes in pilot
buildings, hotels,
assessed “Bespoke” scheme stage of development)
residential
‐ Some pre‐
Assessment ‐ No credit pre‐requisites (to date)
requisites
‐ Some pre‐requisites
details ‐ Criteria not fixed (credit filtering) ‐ Criteria fixed
‐ Criteria fixed
Criteria fixed


market recognition for low environmental impact
buildings
assurance that best environmental practice is
incorporated into a building
inspiration to find innovative solutions that minimise the
environmental impact of a building
criteria and standards over and above legislation
a tool to help reduce running costs, and to improve
working and living environments
a standard that demonstrates progress towards
corporate and organisational environmental objectives

Estimated Savings in
Green Buildings
G B ildi


Energy Operational energy and carbon dioxide (CO2)
Management Management, commissioning and procurement
Health & Wellbeing Indoor and external issues (noise, light, air quality etc)
Transport Transport‐related CO2 and location related factors
Water Consumption and efficiency inside and out
Consumption and efficiency inside and out
Materials Embodied impacts of building materials, including lifecycle
impacts like embodied carbon dioxide
Waste Construction resource efficiency and operational waste
management and minimisation
Land use
Land use Type of site and building footprint
Type of site and building footprint
Pollution External air and water pollution
Ecology Ecological value, conservation and enhancement of the site


General assessment methodology
gy
Design & Procurement Stage Assessment

Request for Identify building Registration with
assessment type & functions certifying body
Assessor advice
& consultancy
Y
Design Stage QA Submission to Evidence
Certification Passed? certifying body gathered

N
Onto Post Amendments /
Construction stage
C t ti t additional i f
dditi l info
(if required)


General methodology for assessment
General methodology for assessment
• P t C t ti Assessment
Post-Construction A t

Y
From D&P Post-construction Submission for QA Post Construction
Assessment evidence gathered
g certification Passed? Certification

N

Amendments /
additional info


Scores in the different sections are then added together to p
g g
produce a single
overall score, which translates into a RATING.
Environmental weighting factor: takes into account the relative importance of
each section
section.

Pass ≥ 30 80+ points = 'Platinum’

Good ≥45
60 to 79 points = 'Gold’ Best Practice

Very Good ≥55
ey 55 (Score 45 - 59)
59)
Excellence
50 to 59 points = 'Silver’ 
Excellent ≥70 (Score 60 – 74)

World Leadership
40 to 49 points = 'Certified’ 
Outstanding ≥85 (Score 75 - 100)


Consider assessment criteria at the earliest possible stage,
before detailed design and before major commitments are
made; & use assessment criteria to guide the design.
Practice good b ildi
P ti d building management;
t
Contribute to health and well-being of staff;
Reduce CO2 emissions from building operations as well
as transport to and from a building;
W t use and efficiency;
Water d ffi i
Use of responsibly resourced materials, with low
embodied energy and use of recycled materials;
Building’s location and footprint;
Minimise pollution (air water and sound).
(air, sound)

Presentation At EcoBuilding Conference

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