Executive Summary

Singapore is located at the north of the equator and with high precipitation rate throughout the year makes Singapore a hot and humid country. Singapore could experience higher temperature in the future.

Many Singaporeans who are living in HDB flat now are feeling uncomfortably hot as the indoor temperature increases due to the heat being trapped particularly on the east and west facade walls. As a result, HDB dwellers tends to switch on the air conditioner and fan causing an increase of energy consumption.

Water-Cooled facade wall is a method that utilises harvested rainwater to run through PVC pipes which are embedded inside the walls using gravity feeds. Water-Cooled facade wall is able to reduce heat gain on the east and west facade walls which will ultimately reduce indoor temperature for greater energy efficiency and sustainability.

Water-Cooled facade wall is a solution that can reduces the amount of thermal heat trapped indoors, decreases the amount of energy consumption and minimises the damage to the ozone layer by reducing the emission of harmful greenhouse gases.

The benefits of Water-Cooled facade wall are reduction in thermal heat trapped indoors, reduction in the amount of energy consumption, and reduction in the damage to the ozone layer.

Water-Cooled facade wall is a beneficial, simple and innovative method that reduces heat gain on east and west facade wall. It will contribute towards the conservation and improvement of our environment for a sustainable development.

Executive Summary

Personal Statement

1 Mr Neo Jun Jie

As an engineering student studying Sustainable Infrastructure Engineering (Land) at SIT, I feel that it is our mission to develop an innovative solution to improve the living conditions of our lives. Many Singaporeans are living in a HDB flat and very often we have heard complaints that the HDB flat is very warm especially during the day. As a result, our group has decided to target indoor heat temperature. We are here to tackle thermal heat trapped by all four walls, which have contributed to the rise of the indoor heat temperature. By resolving this issue, we can ensure that everyone’s comfort level is secure.

Personal Statement

Letter of Transmittal

25 October 2015


Madame Alice Goh Senior Manager on Research Group

Building and Construction Authority 200 Braddell Road ZEB Level 3 Singapore 579700


Dear Madam Alice Goh,

RE: Reducing heat gain on east and west facade walls of HDB flats

We are pleased to present our proposal on reducing heat gain on the east and west facade walls in HDB flats which will ultimately reduce indoor temperature for greater energy efficiency and sustainability.

The content of this proposal consists of the current solutions, the advantages and disadvantages of the current solutions, the group’s proposed solution and benefits.

Current solutions such as reflective paint, windows and green wall are able to reduce the indoor temperature and the amount of sunlight penetrating to a small extent in a HDB household unit in compromising the high initial cost, subsequent maintenance and lack of ventilation.

The group’s proposed solution is to implement water-cooled facade wall. It uses harvested rainwater to reduce indoor temperature of a HDB household unit. The advantages are it reduces the amount heat trapped indoors, decreases the amount energy consumption and minimises the damage to the ozone layer by reducing the emission of harmful greenhouse gases.

Your time spent on our proposal is greatly appreciated. We hope you will consider our proposed solutions to allow us to take a step closer towards responding to the HDB dweller needs, by providing them a conducive environment of living in Singapore.



Yours Sincerely,
Neo Jun Jie
On behalf of Js

Letter of Transmittal

The Role of Peer and Tutor Feedback

The role of peer and tutor feedback provides diversity teaching compared with Singapore traditional way of receiving feedback from teacher. I feel that giving personal feedback and receiving it from peers is beneficial because it creates a purpose for us to read, think, and write.

I believe one of the meaningful assignment from effective communication is reader response. In reader response, I need to write several drafts throughout the twelve weeks before the final submission. During this period of time, I have ample amount of time and feedbacks for me to correct my mistake. Additionally, I believe that when I get my feedbacks on our multiple draft, the chances of improvement will increase.

When peer feedback is established it allows me to interact with my peers and creates social skill while learning to write more effectively. I believe that feedback is a useful life skill that will help me prepare for the future. Although I may receive a negative feedback, I am more likely to accept and improve my work. Feedback makes me realise my mistake and gives me the drive to do my best to receive words of praise.

After twelve weeks of effective communication, I am able to see an improvement in my writing. At least, now I know what kinds of grammar error I have been making for examples, subject verb, determiner and word choice. I am really glad that I have the chance to attend effective communication and meet wonderful people.

All in all, I would definitely want to apply this method of peer and tutor feedback to improve my other written works. However, I feel that nobody would want to give feedback, as the class will not find it compulsory to carry this activity after this module has ended.

The Role of Peer and Tutor Feedback

Reader Response of Developing Sustainable Infrastructure in New Cities (4th Draft – Final)

In the article “Developing Sustainable Infrastructure in New Cities“, Cho (2014) states that Envision Sustainable Rating System is able to reflect the performance of an infrastructure in terms of “sustainability, durability, flexibility and utility of the proposed work.” Envision Sustainable Rating System can also be used to improve the quality of life in cities while managing energy resource and handling natural environment and climate change. The article mentions that the author has recently worked in Saudi Arabia as a member of Impact King Abdullah Economic City (KAEC) Fellowship in providing integrated perception for the projects. Cho further elaborates that in recent projects using the system allow them to overcome difficulties like “rising energy prices, water shortages, traffic congestion, urban sprawl, flood damages, and destruction of roads and bridges.” At the end of the article, the author wishes that Envision System is able to improve the ongoing investment policies for KAEC and around the world. While I agree using Envision Sustainable Rating system has made improvements to the new cities, I feel that the article does not represent the system clearly and there are three factors that the article has failed to consider.

Firstly, Cho does not presents her article comprehensively, there are a few fundamental issues in her article’s structure. After reading the article, it leaves the readers wondering what happens to the projects. According to an article “Sustainability Rating Systems: Broad Based or Narrowly Focused”, Vargas (2013) has given the background knowledge to the readers at the start of his article. Vargas states in his article that there are three different rating systems and categorise them into specific criteria base on their applicability, recognition requirements, professional credential needed of the project team, and pros and cons of each rating system. Vargas clearly elaborates the criteria in detail which allow the readers to be geared precisely to understand what the content is about.

Secondly, Cho’s article mentions that managing energy resource, handling natural environment and climate change are important factors in determining how infrastructure can improve quality of life in the cities. However, the author fails to present that to what extent can we call an improvement. Without the definition of improvement in the quality of life, readers are unable to grasp the situation properly, causing the article to be misleading. In an article “Urban trees boost quality of life for city dwellers around the world”, Welle (2014) claims that the tree has environmental benefits such as “cleaning the air as well as increasing health and quality of life”. Furthermore, urban tree has an attribute that create the kinds of cities that residents feel they are at home. The author can cross reference to the Welle’s article as an example to show how infrastructure can improve the quality of life and how it can be used to solve the environmental and social problem in the cities.

Lastly, Cho’s article gives recognition that in recent KAEC projects, using Envision System as a guideline has been proven effective in resolving one of the main problems of urbanisation; “the role of infrastructure sustainability in the context of rapid urban growth”. However, the article did not show how the system may be ineffective in addressing other part of urbanisation problem. Without mentioning the ineffectiveness of the system may make the readers fall under the impression that there is no flaw. Apart from Envision System, the author can share with the readers that there is an environmental system call BCA Green Mark supported by National Environment Agency (NEA) in Singapore, which is capable of evaluating the environmental impact and performance on a building in urban growth. Another globally acknowledge system that the author can include is the Leadership in Energy and Environmental Design (LEED) developed by the U.S. Green Building Council (USGBC) which looks into “Building Design and Construction, Interior Design and Construction, LEED for Building Operations and Maintenance, and LEED for Neighbourhood Development”. The article can incorporate the examples of BCA Green Mark and LEED system because it helps to widen the readers’ knowledge by giving the pros and cons of the system when using it as a guideline in resolving some of the remaining problems of urbanisation in developing infrastructure in new cities.

In conclusion, Envision Sustainability Rating System can be a beneficial and useful guideline in the application to the KAEC projects. However, as a reader I would like the author to present her article more fluently and carefully in an orderly format. The article can be more informative if it can include studies on an integral sustainable system and how it can sustain the project.



Cho, H., Impact KAEC Fellow. (2014, December 17). Developing Sustainable Infrastructure in New Cities. [Web log post] Retrieved from http://www.newcitiesfoundation.org/evaluating-sustainable-infrastructure-development-new-cities/


Welle, B., (2014, May 7). Urban trees boost quality of life for city dwellers around the world (1st paragraph). Retrieved from http://thecityfix.com/blog/urban-trees-boost-quality-life-city-dwellers-around-world-livability-tree-canopy-ben-welle/


Vargas, S., P.E., ENV SP, LEED AP BD+C. (2013, September). Sustainability Rating Systems: Broad Based or Narrowly Focused? Retrieved from http://cenews.com/article/9438/sustainability_rating_systems__broad_based_or_narrowly_focused_


Building & Construction Authority. (2015, September 23). BCA Green Mark Assessment Criteria and Online Application. Retrieved from http://www.bca.gov.sg/greenmark/green_mark_criteria.html


U.S. Green Building Council. (2015, March 15). About LEED. Retrieved from http://www.usgbc.org/articles/about-leed

Reader Response of Developing Sustainable Infrastructure in New Cities (4th Draft – Final)

Reflection on Oral Presentation

Two days ago, my group had done a presentation for effective communication. We chose to tackle a problem that many Singaporeans have been facing, indoor heat temperature increases due to heat being trapped particularly on the west façade wall. I presented on the current solution and its disadvantages.

It was my first time preparing a script. I felt afraid that I will be disorganised and discomposed in the actual presentation. Therefore our group had done three trial run, but I was not satisfied with my performance. Since I was using a script, I was so focused on memorising the technical terms that I started to neglect the flow of the presentation. Often at the trial run, I would stop and ask my group for improvement on my speech. My only worry is my articulation on the actual presentation because I will tend to mispronounce words when I am under pressure and stress.

On the actual presentation, I was so focused on my volume and articulation that I had overlooked on the tone. I received feedback that I was monotonous during the presentation. My voice is naturally low. However, I could have put in some effort into my tone.

I was told that occasionally I looked at the slides instead of the audience. Truthfully, I was nervous during the presentation. I used laser pointer at the slide to gain some time and thought before continuing my presentation.

In conclusion, I feel that I have improved in my presentation skill. I am thankful that I have the opportunity to learn, unlearn, and relearn in effective communication class.

Reflection on Oral Presentation

Influential Person

I have realized at the age of thirteen that my mother has been the most influential person in my life. My mother is a housewife and the pillar of my family. She has been taking care of my younger sister and me after we were born.

I remember during my secondary school day, I always hated getting up early for school every morning at 6.15am. However, my mother has to wake up 15 minutes earlier than me to prepare breakfast and make sure I was never late for school. I really appreciate my mother for sacrificing her sleep for me, because of that I was never late for school. On the day that I do not have co-curricular activity (CCA), my mother would cook lunch and waited me at home. You may think that she must be used to waking up early every morning, but who will do that every day if one were to be given a choice.

My mother believes eating at home is a healthier form of lifestyle. She has been cooking dinner every evening, and usually it consists of 1 meat, 1 vegetable plus 1 soup. It can be an onerous chore at times, but my mother still continue making our dinner without fail. She insists that home prepared food is always healthier than dining out. She will try her best to reduce the amount of sugar, salt and oil usage without compromising the taste. Within my heart I thank her for taking care of my eating habit, because of that I do not have any illness like diabetes, high blood pressure or high cholesterol. She has definitely influent my life, without her I would be eating fast food like other kids would have because their parents are busy working.

Influential Person