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Influences of lightweight foam concrete roof tile hollow sections and thermal reflective coating in cool roof system

Modern civilization is increasing the commercial and residential buildings demand, while a big part of the energy consumed in buildings is for cooling purposes. Modern building design requires sustainable cooling facilities when an excellent roofing system plays an important role. This paper investi...

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Main Authors: Yew, Ming Chian, Saw, Lip Huat, Yeo, Wei Hong, Ho, Mun Ling
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2023
Online Access:http://journalarticle.ukm.my/22182/1/kjt_9.pdf
http://journalarticle.ukm.my/22182/
https://www.ukm.my/jkukm/volume-3503-2023/
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spelling my-ukm.journal.221822023-09-13T06:38:17Z http://journalarticle.ukm.my/22182/ Influences of lightweight foam concrete roof tile hollow sections and thermal reflective coating in cool roof system Yew, Ming Chian Saw, Lip Huat Yeo, Wei Hong Ho, Mun Ling Modern civilization is increasing the commercial and residential buildings demand, while a big part of the energy consumed in buildings is for cooling purposes. Modern building design requires sustainable cooling facilities when an excellent roofing system plays an important role. This paper investigates the performance of a cool roofing system that integrates lightweight foam concrete roof tile and a passive cool roofing system. The concrete fabrication process introduced the concrete roof tile hollow sections to improve the roof’s thermal resistance. The densities of the lightweight foam concrete roof tile were varied at 1300 kg/m3 and 1100 kg/m3, respectively, to determine a better performance of roof tile than a basic concrete roof with a density of 2500 kg/m3. Two spotlight lamps that imitated solar irradiation in the afternoon were used as the heat supplied on four roof prototypes. The results showed that the attic temperature dropped from 40.8 °C to 33.5 °C (-7.3 °C) after 60 minutes of heat exposure when the roof was a foam concrete, the roof density was lower, with hollow longitude sections and thermal reflective coating. Furthermore, the average attic temperature increment rate was reduced by 70.2 % when an ideal cool roofing system was applied. Penerbit Universiti Kebangsaan Malaysia 2023 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/22182/1/kjt_9.pdf Yew, Ming Chian and Saw, Lip Huat and Yeo, Wei Hong and Ho, Mun Ling (2023) Influences of lightweight foam concrete roof tile hollow sections and thermal reflective coating in cool roof system. Jurnal Kejuruteraan, 35 (3). pp. 615-623. ISSN 0128-0198 https://www.ukm.my/jkukm/volume-3503-2023/
institution Universiti Kebangsaan Malaysia
building Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
language English
description Modern civilization is increasing the commercial and residential buildings demand, while a big part of the energy consumed in buildings is for cooling purposes. Modern building design requires sustainable cooling facilities when an excellent roofing system plays an important role. This paper investigates the performance of a cool roofing system that integrates lightweight foam concrete roof tile and a passive cool roofing system. The concrete fabrication process introduced the concrete roof tile hollow sections to improve the roof’s thermal resistance. The densities of the lightweight foam concrete roof tile were varied at 1300 kg/m3 and 1100 kg/m3, respectively, to determine a better performance of roof tile than a basic concrete roof with a density of 2500 kg/m3. Two spotlight lamps that imitated solar irradiation in the afternoon were used as the heat supplied on four roof prototypes. The results showed that the attic temperature dropped from 40.8 °C to 33.5 °C (-7.3 °C) after 60 minutes of heat exposure when the roof was a foam concrete, the roof density was lower, with hollow longitude sections and thermal reflective coating. Furthermore, the average attic temperature increment rate was reduced by 70.2 % when an ideal cool roofing system was applied.
format Article
author Yew, Ming Chian
Saw, Lip Huat
Yeo, Wei Hong
Ho, Mun Ling
spellingShingle Yew, Ming Chian
Saw, Lip Huat
Yeo, Wei Hong
Ho, Mun Ling
Influences of lightweight foam concrete roof tile hollow sections and thermal reflective coating in cool roof system
author_facet Yew, Ming Chian
Saw, Lip Huat
Yeo, Wei Hong
Ho, Mun Ling
author_sort Yew, Ming Chian
title Influences of lightweight foam concrete roof tile hollow sections and thermal reflective coating in cool roof system
title_short Influences of lightweight foam concrete roof tile hollow sections and thermal reflective coating in cool roof system
title_full Influences of lightweight foam concrete roof tile hollow sections and thermal reflective coating in cool roof system
title_fullStr Influences of lightweight foam concrete roof tile hollow sections and thermal reflective coating in cool roof system
title_full_unstemmed Influences of lightweight foam concrete roof tile hollow sections and thermal reflective coating in cool roof system
title_sort influences of lightweight foam concrete roof tile hollow sections and thermal reflective coating in cool roof system
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2023
url http://journalarticle.ukm.my/22182/1/kjt_9.pdf
http://journalarticle.ukm.my/22182/
https://www.ukm.my/jkukm/volume-3503-2023/
_version_ 1778162565518458880
score 13.211869

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