of the buildings component. One of

of the buildings component. One of the ways to implement nature on architecture is by using the 'breathing walls' on
facade or what we call as vertical greenings.
Vertical greening façade is an exterior wall that is planted with plants mainly used for aesthetic and ecological
purpose. To create the vertical greening facade, the plant must be of certain characters and the wall or support
structure must be occupied with soil and water system. Usually, the plant that is used for the vertical greening facade
is aerial roots plant, vines and also climbing plants. The support structure is used for the plant to be able to climb or
cascade down the structure.
According to (Sunakorn and Yimprayoon, 2011) vertical garden or green façade are also becoming popular
landscape design for home and building. It is widely known that plant absorb heat and light from the sun for
photosynthesis process and the best solution to improve the air quality in a certain places since it absorb the carbon
dioxide during the day. Based on these criteria, we can conclude that the vertical greening system can reduce the
heat and temperature and also improve the air quality in a building.
Lastly, based on the research by the National University of Singapore, the electricity can be reduced by 5% if
the temperature of a building decreased by 1°C. This strongly supports the evidence prior to a research by (Sheweka
and Mohamed, 2012); vertical greening system can reduce the temperature in a building by 2 degrees during the day
and 0.4 degrees at night.
1.1. Problem statement
Most of electricity is used to provide a thermally and visually comfortable built-environment through airconditioning
and artificial lighting. Earlier studies by Goulding et al. (1992) and Krarti (2000), on energy audits and
surveys of commercial premises revealed that air-conditioning and artificial lighting account for, respectively, 40–
60% and 20–30% of total electricity use. One of the ways to reduce the energy used is through the implementation
of passive design approach. The passive design approach is where the heating and cooling system of the building is
provided without any means of mechanical energy use whereas, the bioclimatic design is the application of climate
study into the design and building's technology mainly to regulate the heat transfer. Therefore, the combination of
these two approaches is essential in promoting an energy saving building as well as ensuring thermal comfort for the
building's occupant.
In designing a building based on the bioclimatic approach, the most important part of the building is the skin or
the facade. It acts as the control medium of any forces that passes the building. Therefore, the design of the skin or
envelope of an office building plays a vital role in maintaining the thermal comfort of the building's occupant from
the climate condition. Many projects using the vertical greening system as facade can be seen across the world.
However, these designs are not making the full use and benefits of the vertical garden itself. For example in Jakarta,
most buildings with vertical garden facade are implemented mainly because of its aesthetic value. This is due to the
lack of research concerning the thermal effect of vertical garden and the exact percentage of temperature reduction.
1.2. Purpose of study
The aim of this research is to determine the temperature and the humidity in an office building that use vertical
greening system thus proving that this method can be best implemented in tropical climate countries. By observing
the temperature differences in both office and the humidity percentage in a building, the effectiveness of vertical
greening facade can be obtained. This investigation was done by recording the temperature in both office (one with
vertical greening façade and one not using the vertical greening façade system) from the same location during the
day and observing the energy used by both buildings during the working hour period.
1.3. Aims and objectives of research
This research was carried to evaluate the percentage of temperature reduction of two building samples, one with
“vertical greening” and one without. The aim of the study is to investigate whether there are any differences in
temperature and humidity in both office buildings during the day. The objectives of this research are listed below.

ผลลัพธ์ (ไทย) 1:

ประกอบอาคาร หนึ่งในวิธีการใช้ธรรมชาติบนสถาปัตยกรรมอยู่ โดยใช้ 'ผนังหายใจ'อาคารหรือสิ่งที่เราเรียกเป็นแนวตั้ง greeningsกรีนมันแนวตั้งด้านหน้าอาคารมีกำแพงปลูกกับพืชส่วนใหญ่ใช้สำหรับความงาม และระบบนิเวศวัตถุประสงค์ เมื่อกรีนมันแนวหน้าอาคาร โรงงานต้องสร้างอักขระบางอย่าง และผนัง หรือสนับสนุนโครงสร้างต้องครอบครอง ด้วยดินและระบบน้ำ มักจะ พืชที่ใช้สำหรับด้านหน้าแนวตั้ง greeningเป็นพืชรากอากาศ เถาวัลย์ และพืชยังปีน โครงสร้างรองรับการใช้สำหรับพืชสามารถปีน หรือเรียงซ้อนลงโครงตาม (Sunakorn และ Yimprayoon, 2011) สวนแนวตั้งหรืออาคารสีเขียวยังเป็นที่นิยมออกแบบภูมิทัศน์สำหรับบ้านและอาคาร มันเป็นพืชที่ดูดซับความร้อนและแสงอาทิตย์สำหรับอย่างกว้างขวางกระบวนการสังเคราะห์แสงและการปรับปรุงคุณภาพอากาศในสถานที่แน่นอน เพราะมันดูดซับคาร์บอนไดออกไซด์ในระหว่างวัน ตามเกณฑ์เหล่านี้ เราสามารถสรุปได้ว่า ระบบกรีนมันแนวตั้งสามารถลดการความร้อนและอุณหภูมิ และยัง ปรับปรุงคุณภาพอากาศในอาคารสุดท้าย อิงการวิจัยจากมหาวิทยาลัยแห่งชาติสิงคโปร์ ไฟฟ้าจะลดลง 5% หากอุณหภูมิของอาคารลดลง 1 องศาเซลเซียส นี้สนับสนุนหลักฐานก่อนที่จะวิจัย (Shewekaและ Mohamed, 2012); ระบบแนวตั้ง greening สามารถลดอุณหภูมิในอาคาร 2 องศาระหว่างวันand 0.4 degrees at night.1.1. Problem statementMost of electricity is used to provide a thermally and visually comfortable built-environment through airconditioningand artificial lighting. Earlier studies by Goulding et al. (1992) and Krarti (2000), on energy audits andsurveys of commercial premises revealed that air-conditioning and artificial lighting account for, respectively, 40–60% and 20–30% of total electricity use. One of the ways to reduce the energy used is through the implementationof passive design approach. The passive design approach is where the heating and cooling system of the building isprovided without any means of mechanical energy use whereas, the bioclimatic design is the application of climatestudy into the design and building's technology mainly to regulate the heat transfer. Therefore, the combination ofthese two approaches is essential in promoting an energy saving building as well as ensuring thermal comfort for thebuilding's occupant.In designing a building based on the bioclimatic approach, the most important part of the building is the skin orthe facade. It acts as the control medium of any forces that passes the building. Therefore, the design of the skin orenvelope of an office building plays a vital role in maintaining the thermal comfort of the building's occupant fromthe climate condition. Many projects using the vertical greening system as facade can be seen across the world.However, these designs are not making the full use and benefits of the vertical garden itself. For example in Jakarta,
most buildings with vertical garden facade are implemented mainly because of its aesthetic value. This is due to the
lack of research concerning the thermal effect of vertical garden and the exact percentage of temperature reduction.
1.2. Purpose of study
The aim of this research is to determine the temperature and the humidity in an office building that use vertical
greening system thus proving that this method can be best implemented in tropical climate countries. By observing
the temperature differences in both office and the humidity percentage in a building, the effectiveness of vertical
greening facade can be obtained. This investigation was done by recording the temperature in both office (one with
vertical greening façade and one not using the vertical greening façade system) from the same location during the
day and observing the energy used by both buildings during the working hour period.
1.3. Aims and objectives of research
This research was carried to evaluate the percentage of temperature reduction of two building samples, one with
“vertical greening” and one without. The aim of the study is to investigate whether there are any differences in
temperature and humidity in both office buildings during the day. The objectives of this research are listed below.