CPGreen-The Studio

Building performance implies focusing on a component. For instance, a building envelope, or one of the parameters of performance, such as energy use.

Simulations of ambient conditions after roof alteration are used to predict illuminance levels at different times of the year

The ADB HQ has two large atria that bring daylight to office spaces situated in the middle of this deep-plan building. CPGreen was commissioned to study the problem of insufficient natural light, an environmental condition that seemed to adversely affect staff morale and comfort.

The review included the following activities:

	Assessing daylight availability in the two atria
	Benchmarking performance in terms of daylighting of buildings in the Manila climate
	Generating three architectural design options for retrofit of the atria roof
	Formulating a framework for the evaluation of the design options
	Assessing daylight performance of each option for different times of the day/year using light simulations tools

Each option was evaluated against several criteria:

	Illuminance
	Thermal stratification
	Energy use
	Cost of construction
	Timeframe for construction

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the sunpath diagram

Sun penetration analysis is used to assess shading required at various points inside the building

Commonwealth Crescent Market & Food Centre

This two-storey centre is designed with a wave-profile roof and four facades that are permeable to airflow. The question put to CPGreen: given the openness of the design, how critical is sun penetration?

The study looked at several critical times of the year, identifying specific points of sunlight entry. The assessment included:

	Effectiveness of sunshading as designed by the architect
	Effectiveness of roof profile in reducing sun penetration
	Impact of adjacent buildings
	Areas where occupants are likely to suffer for thermal and visual discomfort
	Possible strategies for reducing sunlight entry including improvement of sunshades, landscaping strategies, micro-shade design and adjustment to layout

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Solar insolation on the facades of the building’s three towers suggest the level of exposure and shading required

Fusionpolis will be a state-of-the-art mixed use building in One-North, Singapore. CPGreen was asked to assess the environmental impact of the façade system primarily in terms of thermal transmission and energy load.

The study looked at the impact of the tropical sun on the building geometry, generating outputs on the following:

	Sun penetration and daylight availability in key spaces
	Shading due to adjacent buildings and within development
	Cooling load due to different building façade options, including a double skin system
	Capital and operational costs associated with facade, in particular energy consumption

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Daylight simulations are used to predict illuminance levels within the workshop

This building consists of a large workshop for boat storage and maintenance. CPGreen was asked to assess sun penetration. The study included the following:

	Effectiveness of sunshading as designed by the architect
	Effectiveness of roof profile, as designed, in reducing sun penetration
	Areas where occupants are likely to suffer for thermal and visual discomfort
	Possible solutions for reducing sunlight entry including improvement of sunshades, landscaping strategies, micro-shade design and adjustment to layout
	Estimated daylight levels in three crtical zones

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Daylight simulations are used to predict illuminance levels at various levels within the Museum central atrium

The Singapore History Museum is a prestigious project that consists of an extension to a historical building in the heart of the civic district. The architects envisaged a glass atrium that rests
against the old building, creating an entrance foyer and gallery spaces. The CPGreen assessment, in part, focused on thermal stratification and
comfort studies; it also sought to establish the level of daylight entry into this key space.

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Asian Development Bank
Headquarters

Commonwealth Crescent
Market & Food Centre

Fusionpolis

Police Coast Guard

Singapore History Museum

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