Ventilated Roof for Modern Low-cost House in Hot Humid Climate

The overheating of indoor air temperature is one of the major concerns in a modern house design especially for the low-cost housing. Most of the occupants will feel uncomfortable when the indoor temperature is exceeding the level of thermal comfort. This result of the need to use mechanical means to...

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Main Author:	Qairuniza, Roslan
Format:	Thesis
Language:	English English
Published:	2022
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://ir.unimas.my/id/eprint/39384/4/Master%20Thesis_Qairuniza%20Roslan%20-%2024%20pages.pdf http://ir.unimas.my/id/eprint/39384/6/Qairuniza%20Roslan%20ft.pdf
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id	my-unimas-ir.39384
record_format	uketd_dc
spelling	my-unimas-ir.393842023-06-27T02:59:08Z Ventilated Roof for Modern Low-cost House in Hot Humid Climate 2022-06-20 Qairuniza, Roslan TA Engineering (General). Civil engineering (General) The overheating of indoor air temperature is one of the major concerns in a modern house design especially for the low-cost housing. Most of the occupants will feel uncomfortable when the indoor temperature is exceeding the level of thermal comfort. This result of the need to use mechanical means to cool the house, hence it surely incurs additional living cost to pay the electricity bill and maintenance cost. The overheating is a result from the hot air that trap in the house and the cause is due to poor of passive design; lack of ventilation provision in house design. It is important to remove the hot air from internal area to avoid any unforeseen event that could harm one’s health; to avoid heat stroke from happening. To overcome this problem, the proposed ventilated roof is introduced and designed with more openings on the roof surface areas. This research was conducted and carried out to investigate the effect of openings on the roof surface towards the indoor temperature of a house in tropical climate areas. For this study, on-site experiment was conducted by building model houses with common roof and ventilated roof design under fully closed and fully opened condition. Air temperature and air velocity were recorded and the data was used as an input to the CFD Simulation. The CFD simulation was carried out for validation purposes. Once validated, the CFD simulation was proceeded with model house with different pitch of roof. The CFD simulation on Betong’s house was conducted with ventilated roof tiles design. From the findings, it was concluded that model house with ventilated roof tiles design recorded lower indoor temperature as compared to common roof. In conclusion, the passive design of modern house is improved through the adoption of the ventilated roof tiles design, which it enhances the removal of the hot air and reduce air temperature inside the house. Keywords: Passive design; ventilated roof; CFD simulation Universiti Malaysia Sarawak 2022-06 Thesis http://ir.unimas.my/id/eprint/39384/ http://ir.unimas.my/id/eprint/39384/4/Master%20Thesis_Qairuniza%20Roslan%20-%2024%20pages.pdf text en public http://ir.unimas.my/id/eprint/39384/6/Qairuniza%20Roslan%20ft.pdf text en validuser masters Universiti Malaysia Sarawak Faculty of Engineering
institution	Universiti Malaysia Sarawak
collection	UNIMAS Institutional Repository
language	English English
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Qairuniza, Roslan Ventilated Roof for Modern Low-cost House in Hot Humid Climate
description	The overheating of indoor air temperature is one of the major concerns in a modern house design especially for the low-cost housing. Most of the occupants will feel uncomfortable when the indoor temperature is exceeding the level of thermal comfort. This result of the need to use mechanical means to cool the house, hence it surely incurs additional living cost to pay the electricity bill and maintenance cost. The overheating is a result from the hot air that trap in the house and the cause is due to poor of passive design; lack of ventilation provision in house design. It is important to remove the hot air from internal area to avoid any unforeseen event that could harm one’s health; to avoid heat stroke from happening. To overcome this problem, the proposed ventilated roof is introduced and designed with more openings on the roof surface areas. This research was conducted and carried out to investigate the effect of openings on the roof surface towards the indoor temperature of a house in tropical climate areas. For this study, on-site experiment was conducted by building model houses with common roof and ventilated roof design under fully closed and fully opened condition. Air temperature and air velocity were recorded and the data was used as an input to the CFD Simulation. The CFD simulation was carried out for validation purposes. Once validated, the CFD simulation was proceeded with model house with different pitch of roof. The CFD simulation on Betong’s house was conducted with ventilated roof tiles design. From the findings, it was concluded that model house with ventilated roof tiles design recorded lower indoor temperature as compared to common roof. In conclusion, the passive design of modern house is improved through the adoption of the ventilated roof tiles design, which it enhances the removal of the hot air and reduce air temperature inside the house. Keywords: Passive design; ventilated roof; CFD simulation
format	Thesis
qualification_level	Master's degree
author	Qairuniza, Roslan
author_facet	Qairuniza, Roslan
author_sort	Qairuniza, Roslan
title	Ventilated Roof for Modern Low-cost House in Hot Humid Climate
title_short	Ventilated Roof for Modern Low-cost House in Hot Humid Climate
title_full	Ventilated Roof for Modern Low-cost House in Hot Humid Climate
title_fullStr	Ventilated Roof for Modern Low-cost House in Hot Humid Climate
title_full_unstemmed	Ventilated Roof for Modern Low-cost House in Hot Humid Climate
title_sort	ventilated roof for modern low-cost house in hot humid climate
granting_institution	Universiti Malaysia Sarawak
granting_department	Faculty of Engineering
publishDate	2022
url	http://ir.unimas.my/id/eprint/39384/4/Master%20Thesis_Qairuniza%20Roslan%20-%2024%20pages.pdf http://ir.unimas.my/id/eprint/39384/6/Qairuniza%20Roslan%20ft.pdf
_version_	1783728513206976512

Ventilated Roof for Modern Low-cost House in Hot Humid Climate

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