design green with green mark 2015...• waterproofing (where applicable) requirement: • 60%/ 80%...

Design Green with Green Mark 2015Low Giau Leong

Environmental Sustainability Group

Climate Change & Global Warming

WHY GREEN THE BUILT ENVIRONMENT

• Largest contributor to global GHG emissions

• Buildings use:

40% global energy,

25% global water,

40% global resources,

emit 1/3 of GHG emissions

3

www.turbosquid.com

3RD Green Building Masterplan

5 Sections

Climatic Responsivene

ss

Building Energy

Performance

Resource Stewardship

Smart & Healthy Buildings

Advanced Green Efforts

The New Structure of GM 2015The New Structure of GM 2015The New Structure of GM 2015The New Structure of GM 2015:

1.01d - BIM

3D Lonely BIM

(Regulation)

3D Integrated

BIM

4D (Time) BIM

•Linking attributes to the construction programme

5D (Cost) BIM

•Specifications and quantity schedules

6D (FM) BIM

• data for maintenance and repairs

•Building performance analytics

BIM for DfMA

BIM for Design Co-

ordination

BIM for Performance Based

Simulation

AdvancedAdvancedAdvancedAdvanced GreenGreenGreenGreen EffortsEffortsEffortsEfforts (Enhanced(Enhanced(Enhanced(Enhanced Performance)Performance)Performance)Performance)

[Circular on GM 2015]

5 Sections

Climatic

Responsiveness

Climatic

Responsiveness

Building Energy

Performance

Building Energy

Performance

Resource

Stewardship

Resource

Stewardship

Smart &

Healthy

Buildings

Smart &

Healthy

Buildings

Advanced

Green Efforts

Advanced

Green Efforts


Outcomes of Green Mark 2015

Climate Responsiveness

• EmissionsEmissionsEmissionsEmissions reductionreductionreductionreduction

• ResilienceResilienceResilienceResilience totototo ClimateClimateClimateClimate changechangechangechange

• ContextualContextualContextualContextual designdesigndesigndesign

• LowLowLowLow carboncarboncarboncarbon technologytechnologytechnologytechnology

• EnvironmentalEnvironmentalEnvironmentalEnvironmental LeadershipLeadershipLeadershipLeadership

1.Climatic Responsive Design

Leadership

(10 points)

Urban Harmony

(10 points)

Tropicality

(10 points)

1.01 Leadership

1.01 Leadership 10

1.01a Climatic and Contextually Responsive Brief 1

1.01b Integrative Design Process 2

1.01c Environmental Credentials of Project Team 2

1.01d Building Information Modelling 2

1.01e User Engagement 3

Advanced Green Efforts 3

New in GM NRB: 2015

Enhanced from GM v4.1

1.01c Environmental Credentials

Green expertise of firms and individuals is crucial to ensure the capability of

those who are delivering the project in meeting the sustainability objectives.

Criteria Points

(Capped at 2)

At least 2 are ISO 14001 certified: Architect,

M&E engineer, C&S engineer, developer and

main contractor

0.5

At least 2 SGBC Green Services Certified firms 0.5

Certified Green Mark Manager (GMM) or

Green Mark Facilities Manager (GMFM)

0.25

Green Mark Professional (GMP) or

Green Mark Facilities Professional (GMFP)

0.5

Main builder is a BCA certified Green and

Gracious Builder

0.25 (Certified & Merit)

0.5 (Excellent & Star)

5 Sections

Climatic

Responsiveness

Climatic

Responsiveness

Building Energy

Performance

Building Energy

Performance

Resource

Stewardship

Resource

Stewardship

Smart &

Healthy

Buildings

Smart &

Healthy

Buildings

Advanced

Green Efforts

Advanced

Green Efforts


Outcomes of Green Mark 2015

Resource Stewardship

• ReductionReductionReductionReduction ofofofof EnvironmentalEnvironmentalEnvironmentalEnvironmental footprintfootprintfootprintfootprint

(Design(Design(Design(Design &&&& AsAsAsAs----Built)Built)Built)Built)

• BuildingBuildingBuildingBuilding LifeLifeLifeLife cyclecyclecyclecycle considerationconsiderationconsiderationconsideration

• EffectiveEffectiveEffectiveEffective managementmanagementmanagementmanagement (energy,(energy,(energy,(energy, water,water,water,water,

waste)waste)waste)waste)

• ChoiceChoiceChoiceChoice ofofofof constructionconstructionconstructionconstruction materials,materials,materials,materials, methodsmethodsmethodsmethods

• EmbodiedEmbodiedEmbodiedEmbodied carboncarboncarboncarbon

Key Amendments to Pilot Version

3.02a Sustainable Construction

• Sustainable building systems as a

standalone point system instead of

being a multiplier under CUI

• Recognised use of precast under

Sustainable building systems

• Tied green concrete scoring to

various tiers of SGBC certified green

concrete.

3.02c Sustainable Products

• Differential scoring tier for projects

that wish to exclude tenanted areas

for computation

3.Resource Stewardship

Water

(8 points)

Materials

(18 points)

Waste

(4 points)

3.02 Materials

3.02 Materials 18

3.02a Sustainable Construction 8

3.02b Embodied Carbon 2

3.02c Sustainable Products 8New in GM 2015

Enhanced from GM v4.1

Pre-requisites

Extend SC pre-requisite to Gold projects

Additional requirement for Gold+ and Platinum to

score pre-requisite 1pt from Carbon Accounting

(i) Conservation and Resource Recovery (1 point):

• Conservation of existing buildings or structures� Applicable for projects built on sites with existing building structures.

� Where the existing building on site is conserved and not demolished, the

full points can be scored.

• Enhanced Demolition Protocol to maximise resource

recovery of demolition materials for reuse or recycling� 1 pt for recovery rate of >35% crushed concrete waste sent to approved

recyclers with proper facilities


(ii) Resource Optimisation (7 points):

• Part 1 (Capped at 4 points)� Concrete Usage Index (CUI) and Adoption of Sustainable

Building Systems

• Part 2 (Capped at 3 points)� Low-Carbon Concrete

o Recycled/ Engineered Aggregates Content

o Clinker Content


CUI and Adoption of Sustainable Building Systems

Project’s

CUI

Points

≤ 0.60 0.5

≤ 0.50 1

≤ 0.45 1.5

≤ 0.40 2

≤ 0.35 2.5

Points awarded

Sustainable Building Systems 0.5 points 1.0 point 1.5 points

Pre-stressed Concrete Elements

Total

coverage

area ≤ 25%

of CFA

Total

coverage

area ≤ 50%

of CFA

Total

coverage

area ≤ 75%

of CFA

Hollow Core or Voided Concrete

Elements

Light Weight Concrete Elements

*High Strength Concrete Elements

Structural Steel Elements

Composite Structural Elements

Engineered Timber Elements

Prefabricated Prefinished

Volumetric Construction (PPVC)

units

Precast Concrete Elements

Leave-in Formwork

Others (to be accepted by BCA on

case-by-case basis)

*Refers to concrete grade >60MPa

Advanced Green Efforts

1 point awarded for using BIM to calculate CUI

BIM Design tools to compute CUI, carbon footprint etc

BIM for Low-carbon Building Design

Aim: Higher adoption & appropriate use of low-carbon, low-concrete, sustainable and productive materials/ products/ systems

Cobiax Technology

CUI BIM-Based Calculatorhttps://www.bca.gov.sg/SustainableConstruction/sustainable_construction.html

Low Carbon ConcreteUp to 3 points can be scored based on the design and use of low-carbon

concrete, defined as concrete comprising elements such as cements with

clicker content ≤400 kg/m3 with/without recycled/engineered aggregates

such as recycled concrete aggregates (RCA) and washed copper slag (WCS)

from approved sources to replace natural coarse and fine aggregates.

Recycled/ Engineered Aggregates

Coarse Aggregates (eg. RCA)

Fine Aggregates (eg. WCS)

Points (or points tier)

Minimum Requirement

(Tons)

≥ 1.5% X GFA ≥ 0.75% X GFA -

% Replacement by

mass of fine/coarse

aggregate

≥ 5% 0.5

≥ 10% 1.0

Low Carbon Concrete

Up to 2 points can be scored based on the use of concrete containing clinker ≤400 kg/m3 for grades up to C50/60, according to the performance requirements in the specifications.

*Concrete Categories Points (or points

tier)

Uncertified concrete with clinker content ≤400

kg/m3

0.5

SGBC-certified 1-Tick concrete 1.0



*concrete used shall cover at least 80% of the applicable super-structure concrete by volume. This includes ready-mixed concrete and pre-cast concrete elements. All SGBC-

certified concrete are deemed to have fulfilled the requirement of clinker content

<400kg/m3

SS EN 197-1

3.02b Embodied Carbon

Embodied carbon of building- CO2 produced during

the manufacture of materials, their transport &

assembly on site, maintenance & replacement,

disassembly

Embodied carbon- Accounts for 13-18% of the total

carbon footprint of any construction project

(UNEP, 2007)


Criteria Points

Use of BCA Online Embodied Carbon Calculator to

compute carbon emission of various building

materials (as shown in table below)

2

Provide Own Emission Factors with Source

Justification (Advanced Green Efforts)1

Compute the Carbon Footprint of the Entire

Development (Advanced Green Efforts)2

Description Points

Declaration of Concrete, Glass and Steel 1

Declaration of additional materials (aluminium,

paint, timber flooring, ceramic tiles etc)

0.25 points per

material (cap at 1

point)


https://www.bca.gov.sg/CarbonCalculator

Link to User

Manual

• Develop local carbon inventory (web-based)

• Track performance of local building projects in terms of embodied carbon footprint equivalent (CO2eq).

• Improve and reduce embodied carbon footprint in the local building sector.

Previous Green Mark version Enhancement for GM2015

1. Scores when a product is

used, have being used as

a mean to ‘top up Green

Mark points’

Holistic approach to use products;

encourage systems approach to

products use

2. Observed that only few

repeat suppliers and

products were used all

the time

Allow more variation of products

and suppliers to participate in

supplying the required products to

meet the same objective

3. Minimal design/ Design

using less resources are

not being recognized

Gives recognition for design using

less resources; especially where

there no necessity for additional

products


NV & Comfort

IEQ

Controls

HVAC

SC & CarbonProducts in single componentProducts in single componentProducts in single componentProducts in single component

Clarity in Product usage:C larity in Product usage:C larity in Product usage:C larity in Product usage:

High & Low Impact usageHigh & Low Impact usageHigh & Low Impact usageHigh & Low Impact usage

Main basic building productsMain basic building productsMain basic building productsMain basic building products----

Functional systemFunctional systemFunctional systemFunctional system

36

Scoring points by Scoring points by Scoring points by Scoring points by each (single)each (single)each (single)each (single)

product usedproduct usedproduct usedproduct used Scoring points when a Scoring points when a Scoring points when a Scoring points when a combination combination combination combination

of products of products of products of products (if required) (if required) (if required) (if required) is is is is usedusedusedused


Holistic approach to building material specification Holistic approach to building material specification Holistic approach to building material specification Holistic approach to building material specification

and usageand usageand usageand usage

Floor system

Wall system

Roof system

Door system

Ceiling system

External wall System

Building services(Product based)

Softscape & Hardscape (Product based)

37

Products in 6 functional systems:

• 2 Level of applications

Products in standalone application:

• Wider scope-More eligible products

Towards Holistic approach to building material specification and usage- Usage Appraisal

Main building products categorized into flexible combination of ‘Functional system’-conventional

system vs innovative solutions

Holistic approach to building material specification and usage –Assessment on material & product usage by the building functional system

1st level (Base floor group):

Complete base floor

Participating certified

products include:

• Levelling base/ screeding

• waterproofing

(where applicable)

Requirement:• 60%/ 80% 60%/ 80% 60%/ 80% 60%/ 80% in area of all applicable

floor;• 1st level must be scored before 2nd

level can be considered

• Additional bonus: 2-Ticks – 0.25pts , 3-Ticks – 0.5pts, 4-ticks – 1pt

2nd level (Finishes Group):Participating certified

products include:

• Tiles/ Stone/ Composite

tile and grouting,

pointing, skirting (if applicable)

• Carpet/ Vinyl/ laminate/

Timber strips/ boards

with underlay (if

applicable) with adhesive/ Tape,

grouting, pointing,

skirting (if applicable)

• All coats of finishing

coating/ floor finish • Raised floor system with

final finish

• Or no additional finish

required (for building

operation)

1 point

2 points

Prefinished floor

system (integrated

system)

Conventional floor

Design/ detail

Off formed floor with no additional finishes & / or

with combination of different types of floor

finishes

Floor system

3.02c Sustainable ProductsPrerequisite for all ratings: Gold- 2 points, Gold PLUS- 3 points and Platinum- 4 points

• If products are not used, it will be deemed to comply.

• Includes what tenants install at operation stage (requires justification)

• For each system, Level 1 must be scored 60% before the Level 2 can be scored.

Functional

System

Category

Base Group

(To score this group prior to

score for Finishes Group)

Finishes Group

Coverage

>60%*

Coverage

>60%*

Internal Wall 1 2

Internal Floor 1 2

External Wall 1 (>80%*) 2 (>80%*)

Roof 0.5 (>80%*) 0.5 (>80%*)

Doors 1 0.5

Ceiling 0.5 0.5

Functional

System

Category

Base Group

(To score this group prior to

score for Finishes Group)

Finishes Group

Coverage

>80%

Coverage

>80%

Internal Wall 0.5 1

Internal Floor 0.5 1

External Wall 1 2

Roof 0.5 0.5

Doors 0.5 0.25

Ceiling 0.25 0.25

Points achievable where assessment for

whole building including tenant spaces and common areas and back of house

Points achievable where assessment for all

areas (exclude tenant spaces)


(ii) Singular Sustainable Products outside of Functional Systems(ii) Singular Sustainable Products outside of Functional Systems(ii) Singular Sustainable Products outside of Functional Systems(ii) Singular Sustainable Products outside of Functional Systems

Certified by approved local certification body Points per product (≥ 80% of the applicable use)

Sustainable Hardscape

0.25 (capped at 2 points)Building Services

M&E Products

Other systems; system furniture, toilet partitions

• For singular products (i.e. hardscape, softscape, building services),

0.25 pt is accorded for every item used (cap at 4 pts including

bonus points gained from higher ticks singular products). Each

product must meet at least 80% of its applicable use.

AdvancedAdvancedAdvancedAdvanced GreenGreenGreenGreen EffortsEffortsEffortsEfforts (Enhanced(Enhanced(Enhanced(Enhanced Performance)Performance)Performance)Performance)


SGBP Rating Points per product (Functional

system)

Very Good (2-ticks) 0.25

Excellent (3-ticks) 0.5

Leader (4-ticks) 1.0

Use of products certified to higher tiers of environmental performance under

the Singapore Green Building Product Certification scheme – Capped at 2 points

(These products must fulfil ≥ 80% of the applicable use)

Use of 2 Ticks or higher products (Additional Green Efforts)

2 Ticks – 0.25 pt, 3 Ticks – 0.5 pt, 4 Ticks – 1 pt (part of functional system or

hard/softscape or building services)

Conclusion

design green with green mark 2015...• waterproofing (where applicable) requirement: • 60%/ 80%...

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