Revolutionary integrated cool roofing technologies system for attic temperature reduction in buildings
The cooling load is the most prominent building energy consumption. The roof's poor thermal resistance effect causes buildings in the tropical climate to receive high solar heat that afterwards transfer to the attic before entering the living space. Eight roof design models were built and evalu...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509523001006 |
| _version_ | 1797798950463340544 |
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| author | Mun Ling Ho Ming Chian Yew Ming Kun Yew Lip Huat Saw Wei Hong Yeo Zi Cong Yong |
| author_facet | Mun Ling Ho Ming Chian Yew Ming Kun Yew Lip Huat Saw Wei Hong Yeo Zi Cong Yong |
| author_sort | Mun Ling Ho |
| collection | DOAJ |
| description | The cooling load is the most prominent building energy consumption. The roof's poor thermal resistance effect causes buildings in the tropical climate to receive high solar heat that afterwards transfer to the attic before entering the living space. Eight roof design models were built and evaluated under 90 min of solar radiation exposure to noon-time level solar intensity to determine their cooling effect at noon every day. Significantly, the fantastic cool roof system was proven effective with a structural heat gain reduction of 85.5%. The reduction of concrete's density from 2500 kg/m3 to 1100 kg/m3 with lightweight foamed concrete technology allowed the roof's lower surface temperature to decrease by 21.6% (66.3–52.0 °C). Adding a highly solar reflective insulation system with roof ventilation reduced the structural heat gain by up to 33.3%. The combination effects of lightweight foamed concrete roof tile, hollow longitude sections, thermal reflective coating, reflective insulation system, and renewable solar-powered fans reduce the peak attic temperature from 42.8 °C to 32.2 °C. |
| first_indexed | 2024-03-13T04:11:35Z |
| format | Article |
| id | doaj.art-80d21e7082bd4d219495e93494ab8ca8 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-03-13T04:11:35Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-80d21e7082bd4d219495e93494ab8ca82023-06-21T06:53:47ZengElsevierCase Studies in Construction Materials2214-50952023-07-0118e01921Revolutionary integrated cool roofing technologies system for attic temperature reduction in buildingsMun Ling Ho0Ming Chian Yew1Ming Kun Yew2Lip Huat Saw3Wei Hong Yeo4Zi Cong Yong5Department of Mechanical and Material Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Cheras 43000, Kajang, MalaysiaDepartment of Mechanical and Material Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Cheras 43000, Kajang, Malaysia; Corresponding author.Department of Civil Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Cheras 43000, Kajang, MalaysiaDepartment of Mechanical and Material Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Cheras 43000, Kajang, MalaysiaDepartment of Mechanical and Material Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Cheras 43000, Kajang, MalaysiaDepartment of Civil Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Cheras 43000, Kajang, MalaysiaThe cooling load is the most prominent building energy consumption. The roof's poor thermal resistance effect causes buildings in the tropical climate to receive high solar heat that afterwards transfer to the attic before entering the living space. Eight roof design models were built and evaluated under 90 min of solar radiation exposure to noon-time level solar intensity to determine their cooling effect at noon every day. Significantly, the fantastic cool roof system was proven effective with a structural heat gain reduction of 85.5%. The reduction of concrete's density from 2500 kg/m3 to 1100 kg/m3 with lightweight foamed concrete technology allowed the roof's lower surface temperature to decrease by 21.6% (66.3–52.0 °C). Adding a highly solar reflective insulation system with roof ventilation reduced the structural heat gain by up to 33.3%. The combination effects of lightweight foamed concrete roof tile, hollow longitude sections, thermal reflective coating, reflective insulation system, and renewable solar-powered fans reduce the peak attic temperature from 42.8 °C to 32.2 °C.http://www.sciencedirect.com/science/article/pii/S2214509523001006Lightweight foam concreteThermal reflective coatingCool roofBuilding |
| spellingShingle | Mun Ling Ho Ming Chian Yew Ming Kun Yew Lip Huat Saw Wei Hong Yeo Zi Cong Yong Revolutionary integrated cool roofing technologies system for attic temperature reduction in buildings Case Studies in Construction Materials Lightweight foam concrete Thermal reflective coating Cool roof Building |
| title | Revolutionary integrated cool roofing technologies system for attic temperature reduction in buildings |
| title_full | Revolutionary integrated cool roofing technologies system for attic temperature reduction in buildings |
| title_fullStr | Revolutionary integrated cool roofing technologies system for attic temperature reduction in buildings |
| title_full_unstemmed | Revolutionary integrated cool roofing technologies system for attic temperature reduction in buildings |
| title_short | Revolutionary integrated cool roofing technologies system for attic temperature reduction in buildings |
| title_sort | revolutionary integrated cool roofing technologies system for attic temperature reduction in buildings |
| topic | Lightweight foam concrete Thermal reflective coating Cool roof Building |
| url | http://www.sciencedirect.com/science/article/pii/S2214509523001006 |
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