research titleThe effectiveness of egg-crate structure design in Chempenai House to achieve user comfort,

safety and enhanced quality of space

asian architecture | pn yati

chen ee dong | 0321181

content Evidence and analysis of research

User comfort Safety issue Creating poetic spaces

Conclusion Literature review

Bubble diagram/concept mapping of RT, RQ etc

introduction- Chempenai House, also known as

Tropical Box House- Located on the sloping topology of Bukit

Damansara (Damansara Heights)- Design concept: Integrate building with

nature

user comfort: methodologyRESEARCH QUESTION #1:What is the significance of egg-crate structure in encouraging natural ventilation and sun-shading properties in promoting higher user comfort?

Data collection from site using thermometer + online weather data collector Afternoon timing is considered only: results are determined for 11 am – 4 pm (deemed hottest time

of the day) Daily results are then tabulated and averaged Floor plans are analysed

Outdoor temperature: overall temperature of outdoor surrounding Indoor temperature: temperature gathered from indoors

Windspeed and direction: twice per day average

Sun Mon Tues Wed Thurs Fri Sat27.0

28.0

29.0

30.0

31.0

32.0

33.0

34.0

35.0

36.0

37.0

Outdoor and indoor temperature comparison (afternoon)/ °CTe

mpe

ratu

re/°C

user comfortThe egg-crate structure is applied as a solution • to filter and fragment the sunlight• allow air to flow through

as a passive design strategy to reduce uncomfortable glare and provide a cooler, more comfortable interior

It is recorded that the indoor temperature is 2 °C lower than outdoor temperature on average.

Figure: Difference between direct sunlight penetration, no sunlight penetration and fragmented sunlight penetration.

Lattice roof opens up the interior to the sky

Open ended structure found at the southern end

Lattice of perforations on west-facing wall

The egg-crate structure is primarily found as an envelop in:• West-facing wall• Southern end of

the roof structure

Figure: Roof plan N.T.S

air mobility in thermal comfort

time speed/mph direction

11.00 AM 3.0 N-S

12.00 PM 1.0 S-N

1.00 PM 2.0 SW-NE

2.00 PM 2.0 SW-NE

3.00 PM 3.0 W-E

4.00 PM 1.0 NE-SW

Daily results using afternoon timing (benchmarked as hottest times of the day)

Average speed: 2 mph from southwest direction

Figure : Average direction of wind in Chempenai House

Figure: Evidence photos of trees enveloping the egg-crate structure

The egg-crate façade is also surrounded by a lush jungle of trees.

With dense growth and thick foliage it acts as a secondary barrier to filter out the harsh sunlight, similar to Malay vernacular dwellings.

Figure: Ground floor plan allowing wind strategically enter the building

TREES AS THE SECONDARY BARRIER

Living spaces

Private spaces (bedroom & private bath)

Mechanical & services

The strategic placement of the egg-crate structure optimizes natural elements from the site (sunlight + wind) at the living spaces, similar to a Traditional Malay House.

Private spaces are bounded by solid concrete walls to maintain occupant privacy.

Service rooms remain bounded by solid concrete walls to shield from rain.

Figure: Living spaces of traditional Malay house arranged in open floor plan in achieving passive design.

Figure: Egg-crate structure strategically envelops living spaces; private spaces remain enclosed.

safetyRESEARCH QUESTION #2:How does the application of the egg-crate structure jeopardize the overall household security of Chempenai House?

The large perforations on the egg-crate structure might help ventilate and cool down the building, but are there presence of any security threats towards the household?

METHODOLOGYMeasuring size of perforations of the egg-crate structure

Figure: The large openings of the egg-crate structure can accommodate a size of a human

Dimensions of the perforations on the egg-crate structure are approximately:• 700 mm wide• 1400 – 1500 mm tall

Figure: The egg-crate façade

hovers above ground level and there is no direct

landing

There is presence of security threats, but this issue is slightly mitigated by a few adjustments:

• The whole building is elevated above ground, allowing no alternative routes to enter the ground level except main entrance ramp.

• There is no direct landing where egg-crate wall is positioned (void space)

Figure: Entrance ramp

leading into building

spatial qualityRESEARCH QUESTION #3:How is the quality of space enhanced through the use of egg-crate structure?

In what way does the egg-crate structure influence the overall spatial quality of the building? How does egg-crate structure blur the boundary between interior and exterior space? (view-framing)

METHODOLOGYOn-site photography | analysis on design properties | response from architect

• A similar, unified design language• Rectilinear lattice of varying sizes, creating stoic poetry

of brutalist architecture in a natural landscape.• Off-form concrete ages well throughout time

THE GARDEN IN A BOXMaintaining constant visual

permeability and connectivity between exterior and interior environments.

Blurring boundaries, integrating living spaces with nature.

conclusion

literature reviewsource research

methodologytheory findings / results

Ang, B.C. (2016, April 20). Conversations with the Situation. Lecture presented at PAM Public Lecture in Publika Black Box, Kuala Lumpur.

Direct source To design is to solve a problem pertaining a situation (site)

Detailed walkthrough on WHBC’s featured projects works on paper.

Chan, S., Ar. (2009). Applying MS1525:2007 Code of Practice on Energy Efficiency and Use of Renewable Energy for Non-Residential Buildings (pp. 1-22, Publication No. MS1525). Pertubuhan Arkitek Malaysia. Retrieved May 22, 2016, from http://www.greenbuildingindex.org/Resources/20090214 - GBI MS1525-2007 Seminar/20090214 - GBI MS1525-2007 Seminar (CSA) Notes.pdf

Self-publish paper for PAM Energy Efficiency and Use of Renewable Energy for Non-Residential Buildings

Effect of shading devices on temperature.

Lee, A., Liong, S.Y., Lim, W.Z. (2015). Experiencing Malaysian Architecture. Retrieved April 25, 2016, from https://issuu.com/jessielyee/docs/theories_of_malaysian_architecture/1

Site visit and student write-up, with external references

Spatial experience in the Chempenai House

Write-ups about spatial experiences from visitations to mentioned buildings.

Tropical Box House / WHBC Architects. (2015, May 27). Retrieved April 25, 2016, from http://www.archdaily.com/635387/house-tropical-box-whbc-architects

Site visit and interview by ArchDaily

Integration of nature in building

Using the site as a design inspiration

literature reviewsource research

methodologytheory findings / results

Roslan, Q., Ibrahim, S. H., Affandi, R., Nawi, M. N., & Baharun, A. (2016). A literature review on the improvement strategies of passive design for the roofing system of the modern house in a hot and humid climate region. Frontiers of Architectural Research, 5(1), 126-133. doi:10.1016/j.foar.2015.10.002

Intensive research on roofing Improvement strategies of passive design

Roof sections, materiality