Green Mark Method

SUSTAINABLE CONSTRUCTION ENGINEERINGASSIGNMENT 1: GREEN MARK SYSTEM

GREEN MARK METHOD

1.0 INTRODUCTION

BCA Green Mark is s green building rating system to evaluate a building for its

environmental impact and performance. Green Mark(GM) Scheme was launched in January

2005 by Building and Construction Authority (BCA) as an initiative to move Singapore’s

construction industry towards more environment-friendly buildings. It is endorsed and

supported by the National Environment Agency. It provides a comprehensive framework for

assessing building performance and environmental friendless. It is intended to promote

sustainability in the built environment and raise environmental awareness among developers,

designers and builders when they start project conceptualization and design as well as during

construction [Zuhairuse Md Derus et.al (2009)]. It is endorsed and supported by the

National Environment Agency.

It is a benchmarking scheme which aims to achieve a sustainable built environment by

incorporating best practices in environmental design and construction, and the adoption

of green building technologies.[www.greenmark.sg]. The scheme uses a point scoring

system to determine if a building is green.

1.1 BUILDING AND CONSTRUCTION AUTHORITY

The Building and Construction Authority (BCA) is an

agency under the Ministry of National Development,

championing the development of an excellent built

environment for Singapore. “Built environment” refers to

buildings, structures and infrastructure in our surroundings

that provide the setting for the community’s activities.

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BCA’s mission is "we shape a safe, high quality, sustainable and friendly

built environment". Safety, Quality, Sustainability and User-Friendliness are four key

areas where BCA has a very significant influence on the built environment and they

distinguish Singapore’s built environment from those of other cities. Hence, their vision

is to have "the best built environment for Singapore, our distinctive global city"

(www.greenmark.sg).

2.0 GM SCHEME OBJECTIVES

1) Promotes Awareness of Environmental Impact of Buildings.

- Energy

- Water

- Materials / Land

- Indoor Environment Quality

Health

Comfort

Productivity

2) Recognize the efforts made by developers & building owners

and design teams in creating environmentally sustainable buildings.

3) Benchmark and identify good practices in development, design, construction,

management and maintenance of green buildings

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3.0 GM CRITERIA

4.0 GREEN MARK AWARD RATING

The Green Mark rates the environmental friendliness of a building based on a point-

scoring approach. Depending on the score, the rating is categorized into four levels -

Platinum, Gold Plus, Gold and Certified. It enables the benchmarking of a building's

environmental performance and allows comparison between buildings. Buildings also are

required to have triennial assessment to ensure that the Green Mark Building continues to

be well maintained.

Rating Points

Platinum 90 and above

GoldPLUS 85 to <90

Gold 75 to <85

Certified 50 to <75

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GM CRITERIA

Energy Efficiency Water Efficiency

Site/Project Development & Management

(Building Management & Operation for Existing Buildings)

Innovation and other Green

Features

Good Indoor Environmental Quality & Environmental Protection

Table 1: Rating and points for GM


5.0 ASSESSMENT CRITERIA

BCA Green Mark has assessment criteria for two main categories; New Building

and Existing Building. The GM provides a comprehensive framework for assessing the

overall environmental performance of new and existing buildings to promote sustainable

design, construction and operations practices in buildings.

Under the assessment framework for new buildings, developers and design teams

are encouraged to design and construct green, sustainable buildings which can promote

energy savings, water savings, healthier indoor environments as well as the adoption of

more extensive greenery for their projects. As for existing buildings, the building owners

and operators are encouraged to meet their sustainable operations goals and to reduce

adverse impacts of their buildings on the environment and occupant health over the entire

building life cycle.

Certified Green Mark buildings are required to be re-assessed every 3 years to

maintain the Green Mark status. New buildings certified will subsequently be re-assessed

under the existing buildings criteria. Existing buildings will be re-assessed under the

existing buildings criteria.

There are a few scheme under BCA Green Mark to make sure the scheme is

effective. Below is the list of BCA GM scheme. The last four item such as Office

Interior, Landed Houses, Infrastructure and District was the new scheme and launched by

last year to upgrade and improve the GM.

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BCA Green Mark

Schemes

Description Effective Date

Non-Residential New

Buildings (Version 3)

Applicable for new buildings

such as offices, commercial,

industrial and institutional

buildings with or without air-

conditioning systems.

31 Jan 2008 onwards

Residential New buildings

(Version 3)

For new private and public

residential developments.

31 Jan 2008 onwards

Existing Buildings

(Version 2.1)

Applicable to existing

commercial, industrial and

institutional buildings under

operation. Assessment by this

criteria is necessary for

application of GMIS (Existing

Building).

01 Dec 2009 onwards

Office Interior (Version 1) Applicable for tenant renovation

and maintenance practices

27 May 2009 onwards

Landed Houses (Version 1) For landed housing projects. 27 May 2009 onwards

Infrastructure (Version 1) For infrastructure projects e.g. as

barrages, roads, bridges.

27 May 2009 onwards

District (Version 1) For district projects. 29 Oct 2009 onwards

(Source:www.bca.gov.sg)

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Table 2: List of GM schemes


Parameters New Building Existing Building

a) Energy efficiency 14 pre-requisite & 21

additional points

14 points

b) Water efficiency 6 pre-requisite & 9 additional

points

15 points

c) Site & project

management

5 pre-requisite & 15 additional

points

25 additional points

d) Indoor environment

quality and environment

protection

5 pre-requisite & 10 additional points

15 additional points

e) Innovation 15 additional points 20 additional points

* Points 50-70 (Green Mark Certified); Points 70-80 (Green Mark Gold); Points 80-85

(Green Mark Gold-plus) and Points 85-100 (Green Mark platinum)

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Table 3: Parameters for new and existing building


6.0 GREEN MARK CERTIFICATION PROCESS

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Applicant preferably submit the application form for the assessment before

- commencement of design and construction works or

- before handing over of possession of the PROJECT to the purchaser or the applicant or any third party occupying the project

Applicant shall appoint a Co-ordinator to liase with BCA’s Assessor for the duration of the assessment.

New Building: a pre-assessment briefing should be scheduled at the early stage of development phase, followed by actual assessment during the substantial completion of design phase. Follow-up assessments should be arranged during early stage of architecture construction phase and final assessment after TOP(Temporary Occupation Permit).

Existing Building: a pre-assessment briefing should be arranged, followed by the actual assessment to be conducted.

Approval on Green Mark rating

Inform Applicant on Green Mark rating awarded

Verification at TOP stage orupon project completion

END


7.0 FRAMEWORK BCA GREEN MARK RESIDENTIAL BUILDING

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8.0 FRAMEWORK BCA GREEN MARK FOR NON-RESIDENTIAL

9.0 COMPARISON POINTS NEW AND EXISTING BUILDING OF GM

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(SOURCE: www.teeam.com/p_afeec.htm)

BENEFIT OF GM

(1) Increase the corporate image. Leasing and resale value of building

(2) Facilitate reduction in water and energy bills.

(3) Improve indoor environmental quality for a healthy and productive workplace.

(4) Reduce potential environmental impact.

10.0 EXAMPLE OF BUILDING THAT RECEIVE GM AWARD

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(1) SOPHIA RESIDENCE, SINGAPORE – PLATINUM AWARD

The environmentally-friendly design of Sophia Residence incorporates the following key

green features:

a) Innovative design process for the building facade yielding RETV (Residential

Envelope Transmittance Value) of only 18.1 W/m², as against the maximum

permissible RETV of 25.0 W/m² under the BCA Green Mark Scheme. A lower

RETV results in lesser heat load and can achieve up to an approximate 25%

reduction in electricity bills for air-conditioning;

b) A superbly high Green Plot Ratio of 5.1, as against the 2.0 to 4.0 specified under

the BCA Green Mark Scheme. This comes in the form of a roof garden,

landscaped walls, landscaped terraces, vertical greenery and conservation of

matured trees and palms. The development will have one of the longest

residential roof gardens in Singapore, measuring over 200 metres – equivalent to

the height of a 55-storey building;

c) Photovoltaic modules are to be used as an alternative source of energy to

supplement power supply from the grid. This is to be integrated with a display

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panel at the clubhouse which will highlight the total amount of solar energy

generated and amount of carbon dioxide avoided by the photovoltaic system.

This serves to raise residents’ awareness on energy consumption and

conservation; and

d) A sophisticated water management and water harvesting system to reduce usage

of potable water for landscape irrigation. Rainwater and ground water are filtered

using oxygenating reeds in Eco and Bio Filter ponds, and recycled to irrigate the lush

landscape.

(2) GTOWER KL CITY, MALAYSIA – GOLD AWARD

GTower integrates offices, hotel rooms and club, food and beverage and recreational

facilities to provide a holistic and conducive working environment for temporary, short-

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term and long-term business people. It is designed to maximize energy and water

efficiency, and provide high standards in indoor environmental quality.

GTower is the first and only Malaysian corporate office achieving an international

“environment-friendly” standard from Singapore’s Building & Construction Authority

(BCA) Green Mark GOLD certification (provisional),

This credential was earned by the sustainable technologies incorporated into the

building’s design such as:

Energy Savings of 23% from energy efficient air-conditioning and centralized

chilled water

Double glazing glass for lower heat transmission

Glass to Floor ratio (1: 3.8)

Toxic-Free building materials with Low Volatile Organic Content (VOC)

A land area to Green Planting ratio if 1:4 with ‘Green Walls’ and Green Roof

System

Carbon Dioxide detectors for air quality controll

Carbon Monoxide detectors on car parking floors

30% reduction in water outflow & rainwater harvesting system

Extensive use of recycled materials

(Source:www.gtower.com.my)

11.0 CONCLUSION

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Green Mark is one of the building rating system for green building. It was

launched at Singapore and now, Malaysia also started to use Green Mark as the

rating tools for green building indicator. The GM can be assessed whether new or

existing building. The version of the GM also always reviewed by the BCA

authority to make sure the effectiveness on the current situation.

Certified Green Mark buildings are required to be re-assessed every 3 years to

maintain the Green Mark status. New buildings certified will subsequently be re-

assessed under the existing buildings criteria. Existing buildings will be re-

assessed under the existing buildings criteria.

REFERRENCES

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[1] Zuhairuse Md. Edruse et.al (2009), “Development of Sustainable Campus:

Universiti Kebangsaan Malaysia Planning and Strategy”. Journal of WSEAS

Transactions on Environment and Development, Issue 3, Volume 5 (ISSN:1790-

5079).

[2] www.greenmark.sg

[3] www.bca.gov.sg

[4] www.teeam.com/p_afeec.htm

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http://www.teeam.com/p_afeec.htm

http://www.greenmark.sg/

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Green Mark Method

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