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SustainABLE Design
and Consultant

Passive design is the key to sustainable building.

It responds to climate conditions and building locations to get the best of building users’ comfort and health while diminishing energy use.

It achieves this by using free, natural sources of energy such as daylighting and wind to provide, lighting, cooling and ventilation, thereby reducing or removing the need for mechanical cooling. Using passive design can reduce temperature fluctuations, improve indoor quality and make more enjoyable to live with. Then, it can reduce environmental impacts such as greenhouse gas emissions.

Key features of passive design

In Thailand, the key elements of passive design are: building location and orientation; opening design; insulation; shading; ventilation and landscape use. Each of these elements works with others to achieve better comfort zone and indoor air quality.

The first step is to achieve the right amount of daylighting access – enough to provide indirect or diffuse lighting during the day but prevent heating through building. This is done through a combination of location and orientation, room arrangement, window area, glazing type and shading.

Passive design and analysis

It costs little or nothing to incorporate passive design into a new building. The benefits are greatest when passive design principles are incorporated into the entire design and build process, from site selection onwards. Simulation tools can provide crucial help in assessing the impact of different design decisions and optimizing the benefits of passive design. After that, we will consider latest and much low energy consumption of the active system into the buildings.


SQ1 Natural Ventilation

Natural Ventilation flow is an important aspect of human comfort. Moving air helps people feel cooler, and natural ventilation is a key strategy for passive cooling.  Also, circulating fresh air within a space prevents air from getting stale. In building design, we’ll want to consider both external and internal airflows.

Open walkway of an open space mall has problem on raining season which customers cannot freely shopping. The project needs a set tension roof to cover the walkway. Thus, it will make the walkway unventilated well as previous design intention. A ventilation simulation is set for flow study throughout the building to make sure natural ventilation well flow. The study investigates on size of openings, wind speed, flow pattern, and forms of tension roofs to encourage air flow movement and prevent rain from the walkway. Particularly the ventilation openings have to be well designed to avoid undesirable effects from rain, sunlight and pollution.

TVO Pavilion

A study of shading

Our sustainable design team, a department at EMO_D, set out to create a specific design aesthetic and daylit atrium for a museum of a vegetable oil company, optimise them for good energy and daylight performance whilst working towards high regulatory goals for the project as a whole.

By calculating the impact of several shading device types, depths and directions, the team was able to choose an optimum design that reduced energy use and cooling loads. Using simulation real time analysis, we were able to understand the impact of shading types and depths, streamlining from about a few different options to an optimised design that combined high performance, good indirect and diffuse light, and low solar gains through the building.

By testing several design options and optimising the final outcome for daylight and energy performance, we were able make a clear case for their preferred design and confidently steer solutions with our architectural design team.

TREES Certified

Our sustainable design consulting services identify and integrate viable sustainable design strategies into projects to optimize overall energy and environmental performance. We promote an integrated sustainable design process starting with a sustainable design process.

The Thai Green Building Institute, TREES, green building program is the leading program for the design, construction, maintenance and operations of high-performance green buildings in Thailand. Learn more at

[Pictures TREES Certified]

With more than five years of experience in sustainable design and consultant, we bring more to the table than just our knowledge of TREES credits. We go the extra mile to ensure our customers get a high-performance building of enduring value, while achieving TREES certification.

Our sustainability team has collaborated on more than 18 TREES certified projects in Thailand. We have in-house experts who offer a full package of services including TREES certification consulting, sustainable design charrettes and consulting, energy modeling and analysis, daylighting modeling and analysis, both fundamental and enhanced commissioning, and measurement and verification. Keeping multiple energy saving and environmentally sustainability scopes of work under one roof offers our customers greater efficiencies through clear lines of communication and less time needed for coordination between consultants.

At the moment, we have succeeded with 6 TREES projects which achieved various awards from Gold to Certified levels. Our services are experienced with;  

  • TREES for New Construction and Major Renovation

  • TREES for Core and Shell Building (TREES-CS)

  • TREES for Existing Building: Operations and Maintenance (TREES-EB)

  • TREES for Pre New Construction and Major Renovation (Pre TREES-NC)

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