Meta Data

Draft:

Revision of previous policy?:

Yes

Effective Start Year:

2012

Scope:

National

Document Type:

Code

Economic Sector:

Energy, Power, Transport, Building, Other

Energy Types:

All, Power, Other

Issued by:

Building and Construction Authority

Source:

Building and Construction Authority

Building and Construction Authority (Addendum No. 1)

File:

Code for Environmental Sustainability of Buildings 3rd Edition

Code for Environmental Sustainability of Buildings Addendum No.1 (Applicable to 3rd Edition)

Overall Summary:

Outline of Greenmark point allocation system, compliance method, submission procedures, and mandatory requirements of the Greenmark system. The purpose of the amendments (Addendum No.1) is to allow alternative scoring methodology for meeting the criteria under ‘RB 1-2 Naturally Ventilated Design and Air-Conditioning System’.

Efficiency

EE building standards:

Encourage the use of energy efficient features that are innovative and have positive environmental impact, such as; the use of energy efficient equipment or products that are certified by approved local certification body. As well as, the use of energy efficient features like; heat recovery devices, regenerative lifts, cool paints, gas water heaters, calculation of energy efficiency index (EEI), and provision of vertical greenery systems that help to reduce heat gain to buildings.

Full Document Text

NOTE: Images, tables, and charts may not display correctly. Please see PDF document for full details.

Code for Environmental Sustainability of Buildings Addendum No. 1

Effective from 1 September 2014

Applicable to 3rd Edition

This Addendum shall be read in conjunction with the Code for Environmental Sustainability of Buildings and shall form part of the Code.

Amendments to the Code

Coefficient of Performance (COP) range

Point Allocation

COP100% ≥ 3.06 &

3.76 > Weighted COP ≥ 3.34

COP100% ≥ 3.34 &

Weighted COP ≥ 3.76

(1) Purpose of amendments

The purpose of the amendments is to allow alternative scoring methodology for meeting the criteria under ‘RB 1-2 Naturally Ventilated Design and Air-Conditioning System’.

(a) Item 1-2(a) Option 2(ii) under the ‘RB 1-2 Naturally Ventilated Design and Air-Conditioning System in Table 4.1.6(a) on Page 9 of the Code shall be replaced as provided below. Changes are highlighted in blue.

Table 4.1.6(a) : Residential Building Criteria

Part 1 – Energy Efficiency

Green Mark Points

RB 1-2 Naturally Ventilated Design and Air- Conditioning System

Option 2 – Ventilation Design (without the use of simulation modeling) and Efficient Use of Air-Conditioning System

(a) Dwelling Unit Indoor Comfort

Enhance dwelling unit indoor comfort through the provision of good natural ventilation design and energy efficient air-conditioners

(ii) Provision of air-conditioning system

Use of energy efficient air-conditioners that meet the prescribed energy performance standards.

Note (1) : Option 2(ii) is not applicable for developments where air-conditioners are not provided. Points will be scored and prorated accordingly under Option 2(i)

Extent of Coverage : At least 80% of the air-conditioners used in all dwelling units

Air-conditioners labelled with : Three Ticks – 4 points Four Ticks – 8 points

(b) Item 1-2(a) Option 2 (ii) under the ‘RB 1-2 Naturally Ventilated Design and Air-Conditioning System’ on Page 57 of the Code shall be replaced as provided below. Changes are highlighted in blue.

Requirements

1-2 (a) Dwelling Unit Indoor Comfort

Extent of coverage : At least 80% of air-conditioners used in all dwelling units.

Option 2(ii) Provision of energy efficient air-conditioning system

Up to 8 points can be scored for the use of the air-conditioners that are certified under the Singapore Energy Labelling Scheme based on the following rating.

Up to 8 points can be scored for the provision of air-conditioning system with Coefficient of Performance (COP) that meet the prescribed energy performance standards stated in the following Table 1-2.

Notes :

(1) Coefficient of Performance or COP refers to the ratio of the total cooling capacity expressed in Watts to the total effective input power expressed in Watts, and as specified in the test report.

(2) Weighted COP refers to the sum of 0.4 × COP at full-load cooling capacity and 0.6 × COP at part-load cooling capacity i.e. Weighted COP = 0.4 x COP100% + 0.6 x COP50%

Option 2(ii) is not applicable for developments where air-conditioners are not provided. Points can be scored and prorated accordingly under Option 2(i).

RB 1-2 NATURALLY VENTILATED DESIGN AND AIR-CONDITIONING SYSTEM

Energy Efficiency Rating

Point Allocation

✓✓✓

✓✓✓✓

Table 1-2 – Prescribed Energy Performance Standards for Air-Conditioning System
Coefficient of Performance (COP) range	Point Allocation
COP100% ≥ 3.06 & 3.76 > Weighted COP ≥ 3.34	4
COP100% ≥ 3.34 & Weighted COP ≥ 3.76	8

Documentary evidence requirements for Item 1-2(a) Option 2(ii) under the ‘RB 1-2 Naturally Ventilated Design and Air-Conditioning System’ on Page 57 of the Code shall be replaced as provided below. Changes are highlighted in blue.

Documentary Evidences

For 1-2(a) Option 2(ii) – Provision of Air-Conditioning Systems

Extracts of the tender specification showing the types of air-conditioners provided for all dwelling units of the development;
Technical product information and schedule of air-conditioners showing the numbers, types and approved tick-rating as registered; and
Testing report endorsed by the testing laboratory showing the results of tests carried out in accordance with applicable test standards as prescribed in the Energy Conservation (Energy Labelling and Minimum Performance Standards for Registrable Goods) Regulation.