guest lecture to cityu (8 july 2009) course on green

8/14/2019 Guest Lecture to CityU (8 July 2009) Course on Green

1/46

Guest Lecture to CityU (8 July 2009)Course on Green Building, Architecture and People

Building Environmental Assessment

Dr. Sam C M Hui

The University of Hong Kong

- .Jul 2009


2/46

Contents

Assessment Criteria

Current Tools


3/46

Basic Principles

Identify & evaluate the environmental effects of

u ng eve opment or operat on

Inform decision makin and romote sustainabledesign & management

n o ec ve assessmen s a use u s ar ngoint from which to make desi n and buildin

improvements


4/46

Basic Principles

Provide a common set of criteria & targets

Guide design decisions & choices

Raise awareness of environmental issues/standards Recognise & encourage good practices

Allow a verifiable method & framework

Enable policies & regulation (e.g. certificate/label)

Im rove mana ement & rioritization incentives


5/46

Building Activities

Planning

Good practicesIssues

DesignCriteria

Operation

Environmental Environmental

Assessment Benchmarks

AssessmentTools

Ratings


6/46

Basic Principles

Sco e/Scale of the evaluation

Building products

u ng processes

Structural members/elements Building systems

Groups of buildings

District, urban, regional & city

xi in r f r i h il in


7/46

Assessment Criteria

A broad ran e of criteria

Qualitative issues

uan a ve ssues

T es of criteria Ecological vs health-related

Immediate vs long-term implications

Global vs local


8/46

- site selection

- urban design

- landscape planning

- CO2 emissions - energy performance

-- ozone depletion

-

- renewa e energy- water conservation

- material selectionCriteria &

F r -- waste management

-

-

- transport strategy

-

-

- thermal comfort

-- hazardous materials


9/46

Assessment Criteria

Examine the performance of a building or its sub-

system aga nst a ec are set o cr ter a

Usuall voluntar aim to stimulate the market

Scale of performance

Measure & assess relative performance

Quantitative criteria: relative to a baseline

ua tat ve cr ter a: presence a sence o suc eatures


10/46

Assessment Criteria

Indicate the best overall performance

Methodology

Cost or monetar value

Equivalence method (e.g. air/water pollution index)

-

EcoPoint or EcoProfile

Weighting system

To indicate relative im ortance scale and ur enc


11/46

4

Contextual factors

2 Resource consumptionProcess

0

1

Indoor environmentalualit

Ra ar c art or assess ng mu t p e cr ter a


12/46

Ecopoint concept int e env ronmenta

impact estimating) tool

One eco oint is e uivalent to:- 320 kWh electricity

- 83 m2 Water: enough to fill 1,000 baths

- m es y art cu ate truc

- landfilling 1.3 tonnes of waste- manufacturin 3/4 tonnes brick 250 bricks

- 540 tonne kms by sea freight

- 1.38 tonnes mineral extraction

- m es o ur an r v ng n new petro car

(Source: UK BRE)


13/46

Assessment Methods

Common a roaches

Checklists or forms

ompu er- ase me o s

Spreadsheet or computer programs Models used

Product model

Life cycle model

D r ir fr m im l r il


14/46

Assessment Methods

Exam les

Europe:-

ECO-PRO (Germany)

co ro n an

EQUER (France)

ECO QUANTUM (Netherlands)

Canada & USA: BREEAM-Canada & BEPAC-Canada

LEED USA BEES (USA) (for building products)


15/46

Assessment Methods

Asian countries:

Japan Green Building Guide & CASBEE

Korea Green Building Rating System Taiwan Green Building Label

-

CEPAS (HK)

International reference model


16/46

Current Tools

BREEAM - UK

Building Research Establishment Environmental

Types of buildings Offices Homes (known as EcoHomes)

Industrial units Retail units

Used as a reference in many countries

. .


17/46

Current Tools

-

Credits awarded for a set of performance criteria

Energy, water, pollution, materials, transport, ecology

and land use, health and well being Construction & building operational management

A wei htin s stem is a lied to determine final ratin

Stages of building development es gn procuremen

Management & operation

Post construction review


18/46

Current Tools

LEED Green Buildin Ratin S stem

Leadership in Energy & Environmental Design

y reen u ng ounc

Current LEED standards: New construction & major renovation (LEED-NC)

Existin buildin : o erations&maintenance (LEED-EB)

Commercial interiors (LEED-CI) Core and shell LEED-CS

Schools, healthcare, retail

- Neighborhood development (LEED-ND) (in pilot)


19/46

Current Tools

Evaluates and recognizes performance in accepted

green es gn categor es, nc u ng:

Sustainable sites Water efficiency

Materials and resources

n oor env ronmen a qua y

Innovation credits

Website: www.leedbuilding.org


20/46

Current Tools

LEED Green Buildin Ratin S stem

Whole-building approach encourages & guides a

,

Optimizes environmental and economic factors

our eve s o cer ca on up o vers on .

LEED Certified 26 - 32 points

ver eve - po nts

Gold Level 39 - 51 points

a num eve po n s poss e

LEED Accredited Professional (LEED AP)


21/46

LEED Point Distribution

Indoor

Sustainable

Si tes

EnvironmentalQual i ty

23%

Mater ia ls &

22%

Water

Ef f ic iency

8%Energy &

20%

Atmosphere

27%

(Source: USGBC)

Phillip Merrill Environmental Center LEED 1 0 Certification:


22/46

Phillip Merrill Environmental CenterHeadquarters

LEED 1.0 Certification:PLATINUM

nnapo s, ary an

Notes from the Project Team: LEEDTMwas instrumental in

conveying the importance of the sustainable elements of thedesi n to CBFs Board of Trustees.

Sustainable Sites Site Selection: Erected in Smart Growth Funding Area on footprint of

existing structure. 26.6 acres remain undisturbed in Land Trust.

Educational Model: Interpretive trails & demonstrations for public

visitors Storm/Waste Water: All Composting Toilets & Bioretention/Wetland

Resource Protection: Woodland, Wetland, & Tidal Water Restoration

Water: Rainwater Catchment & Reuse for Hand Washing & Irrigation

Energy and Atmosphere

Domestic Hot Water: Thermomax-Solar Technology

Owner: Chesapeake Bay Foundation

. -

HVAC: Natural Ventilation and Desiccant Dehumidification & HeatRecovery

Controls/Monitoring: Building Energy management System, GreenLight notifies staff to open windows when outside conditions comply

Project Team: Architect: SmithGroup, Inc.

Engineer: SmithGroup, Inc.

P.Manager: Synthesis, Inc.

Contractor: Clark Construction Group

-

Lighting: Daylight Harvesting and time clock lighting controls

Rapidly Renewable: Bamboo, cork and linoleum floorings Recycled Content: Metal roofing and siding, acoustic ceiling, ceramic

tile, and MDF cabinetry

,

Building Statistics:Completion Date: November, 2000

Cost: $6.36 M

Materials and Resources

Structure: Rapidly Renewable-Paralam Post, Beam, and Truss system

Envelope: Structural Insulated Panels (SIP) R-20 walls, R-30 roof

Indoor Environmental Quality

ze: 30,600 gross square eet

Footprint: 12,000 square feet

Construction Type: 3B, Two Stories over Open Parking

Use Group: Business(B), Assembly(A-3), Storage(S-2)

Lot Size: 33 acres

Indoor Environmental Quality: CO2and VOC monitors.

Furniture: Small, open offices allow for communal space. Systemsfurniture allows flexible layout to accommodate churn

Annual Energy Use: 23 kBtu/sf/year

Occupancy: 90 Staff

(Source: USGBC)


23/46

Current Tools

LEED 2009 or LEED v3

Launched in April 2009

or ew ons ruc on an a or

Renovations addresses 7 topics: Sustainable Sites (SS) Water Efficiency (WE)

Energy and Atmosphere (EA) Materials and Resources (MR)

Indoor Environmental Quality (IEQ)

Innovation in Desi n (ID) Regional Priority (RP)


24/46

Current Tools

LEED 2009 or LEED v3 contd

LEED 2009 for New Construction and Major

to the following scale:

Silver 5059 points

o po nts

Platinum 80 points and above

Maximum possible points = 110 100 base points; 6 possible Innovation in Design and 4

Regional Priority points


25/46

Current Tools

LEED 2009 or LEED v3 contd

LEED Green Associate (all rating systems)

ccre e ro ess ona

Building Design + Construction (BD+C) Interior Design + Construction (ID+C)

Homes

Operations + Maintenance (O+M) Neighborhood Development (ND) (available in 2010)

Further information:

, . . Green Building Certification Institute, www.gbci.org


26/46

CASBEE (Comprehensive Assessment System for Building Environmental Efficiency)


27/46

C S (Co p e e s ve ssess e t Syste o u d g v o e ta c e cy)

(Source: IBEC, Japan)


28/46



29/46



30/46


Koreas Green Building Rating System Criteria


31/46

g g y

-

Section Resource Environ- Quality of Longevity Process Contextualonsump-

tion

men a

Loadings

n oor

Environ.

ac ors

Criteria(Number)

- energy (8)- land (3)

-

- airborneemissions

(17)

- air quality(10)

- thermal

- adapt-ability (5)

- mainten-

- design &construction

process (6)

- location &trans-

portation (1)

- materials

(7)

- solid waste

(4)

- li uid

quality (4)

-visual

ualit 7

ance of

perform-

ance (6)

- building

operations

planning (7)

- loadings on

immediate

surroundingswaste (4)

- other

- noise &

acoustics (3)

(4)

- -

ability ofsystem (2)

Total(102) 20 27 26 11 13 5

* Source: Green Building Council of Korea (www.gbc-korea.co.kr)


32/46

Current Tools Taiwan Green Buildin Label

Nine sets of assessment criteria/indicators:.

2. Greenery

. a er re en on

4. Energy efficiency

5. Carbon dioxide reduction

6. Waste reduction

7. Indoor environment

8. Water resources

9. Wastewater and garbage


33/46

Current Tools

General

Healthy

High-performance

Ecological . . .


34/46

Current Tools HK-BEAM

Previous versions:-

Version 2/96R - for existing office buildings

ers on - or new res en a u ngs

Hotel Building Environmental Assessment Scheme

Issues covered: Global issues & use of resources

Local issues

Indoor issues


35/46

Current Tools HK-BEAM

New versions 2004:-

HK-BEAM 5/04 Existing Building

pproac Site aspects

Materials aspects

Energy use

Water use

Indoor environmental ualit IE

Innovation & performance enhancements


36/46


37/46

Current Tools Com rehensive Environmental Performance

Assessment Scheme (CEPAS) for Buildings

Buildings Department to develop this scheme

Currently under consultation and internal review

Buildin t es:

Residential on-residential

Applications: new buildings, major addition &

,


38/46

Performance cate ories for CEPAS


39/46

Performance cate ories for CEPAS

IEQResourceUse

Building

Loadings Amenities

Context

Impacts Amenities

Neighborhood NeighborhoodImpacts Amenities

Ph sical Human

(Source: Executive Summary for CEPAS)


40/46

Current Tools GBTool

GBC (Green Building Challenge) for 19 countries

ssues cons ere Resource consumption (R)

Environmental loadings (L)

Indoor environmental quality (Q)

Quality of service (S)

Economics (E)

Pre-operations management (M)

Architectural ualit ? not included


41/46

Source: http://greenbuilding.ca/GBIC.htm


42/46

Source: http://greenbuilding.ca/GBIC.htm


43/46

Current Tools

An international process, initiated by Canada

Examples of green buildings in the world

GBC 1998 Vancouver Canada GBC 2000 (Maastricht, the Netherlands)

,

See conference proceedings & GBC CD


44/46


45/46

Video Presentation

Location: Pennsylvania, USA

Completion: 1999

, . http://www.gggc.state.pa.us/building/scrob.html


46/46

guest lecture to cityu (8 july 2009) course on green

Documents