Novel cool roofing technology system with sustainable design for attic temperature reduction
The penetration of increasing solar gain towards the building deteriorates the building's thermal quality and raises cooling demand. In particular, the roof receives the most solar gain. The roof system reformation is urged to improve the roof system's heat capacity and conserve building e...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-05-01
|
| Series: | Ain Shams Engineering Journal |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2090447924000819 |
| _version_ | 1797238013488529408 |
|---|---|
| author | Mun Ling Ho Ming Chian Yew Ming Kun Yew Lip Huat Saw Weng Cheong Tan Richard Kwok Kit Yuen |
| author_facet | Mun Ling Ho Ming Chian Yew Ming Kun Yew Lip Huat Saw Weng Cheong Tan Richard Kwok Kit Yuen |
| author_sort | Mun Ling Ho |
| collection | DOAJ |
| description | The penetration of increasing solar gain towards the building deteriorates the building's thermal quality and raises cooling demand. In particular, the roof receives the most solar gain. The roof system reformation is urged to improve the roof system's heat capacity and conserve building energy. This paper introduced a novel cool roofing system to replace the traditional roof system. The proposed novel cool roofing applications merged: (i) lightweight foam concrete, (ii) hollow concrete slab, (iii) white cooling paint and (iv) active reflective insulation system powered by solar energy. The discovery of the proposed system was evaluated with experimental chambers exposed to the outdoor environment. Under intense sunlight, the internal roof surface was 30.6 % cooler (50.5 °C to 35.0 °C). The mean attic temperature achieved was 33.9 °C under a field where the daily maximum recorded surrounding temperature is 43.0 °C. In contrast with a bare roof at 41.9 °C, the proposed design demonstrated a 19.2 % lower solar gain, achieving a sub-ambient structure. Besides that, the cooling demand simulation generated similar cooling demand savings (20 %). Significantly, this comprehensive cool roofing system exhibited a considerable and constructive outcome in cooling the buildings by achieving sustainable development to create a better and more environmental future for all. |
| first_indexed | 2024-04-24T17:28:53Z |
| format | Article |
| id | doaj.art-1872c560f68244c3b66e76bdb8b61ce0 |
| institution | Directory Open Access Journal |
| issn | 2090-4479 |
| language | English |
| last_indexed | 2024-04-24T17:28:53Z |
| publishDate | 2024-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ain Shams Engineering Journal |
| spelling | doaj.art-1872c560f68244c3b66e76bdb8b61ce02024-03-28T06:37:41ZengElsevierAin Shams Engineering Journal2090-44792024-05-01155102706Novel cool roofing technology system with sustainable design for attic temperature reductionMun Ling Ho0Ming Chian Yew1Ming Kun Yew2Lip Huat Saw3Weng Cheong Tan4Richard Kwok Kit Yuen5Department of Mechanical and Material Engineering, Lee Kong Chian Faculty of Engineeringand Science, Universiti Tunku Abdul Rahman, Cheras, 43000 Kajang, MalaysiaDepartment of Mechanical Engineering, Universiti Teknologi PETRONAS, Malaysia; Corresponding authors.Department of Civil Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Cheras, 43000 Kajang, Malaysia; Corresponding authors.Department of Mechanical and Material Engineering, Lee Kong Chian Faculty of Engineeringand Science, Universiti Tunku Abdul Rahman, Cheras, 43000 Kajang, MalaysiaDepartment of Mechanical and Material Engineering, Lee Kong Chian Faculty of Engineeringand Science, Universiti Tunku Abdul Rahman, Cheras, 43000 Kajang, MalaysiaDepartment of Architecture and Civil Engineering, City University of Hong Kong, Hong KongThe penetration of increasing solar gain towards the building deteriorates the building's thermal quality and raises cooling demand. In particular, the roof receives the most solar gain. The roof system reformation is urged to improve the roof system's heat capacity and conserve building energy. This paper introduced a novel cool roofing system to replace the traditional roof system. The proposed novel cool roofing applications merged: (i) lightweight foam concrete, (ii) hollow concrete slab, (iii) white cooling paint and (iv) active reflective insulation system powered by solar energy. The discovery of the proposed system was evaluated with experimental chambers exposed to the outdoor environment. Under intense sunlight, the internal roof surface was 30.6 % cooler (50.5 °C to 35.0 °C). The mean attic temperature achieved was 33.9 °C under a field where the daily maximum recorded surrounding temperature is 43.0 °C. In contrast with a bare roof at 41.9 °C, the proposed design demonstrated a 19.2 % lower solar gain, achieving a sub-ambient structure. Besides that, the cooling demand simulation generated similar cooling demand savings (20 %). Significantly, this comprehensive cool roofing system exhibited a considerable and constructive outcome in cooling the buildings by achieving sustainable development to create a better and more environmental future for all.http://www.sciencedirect.com/science/article/pii/S2090447924000819Cool roofSolar energyLightweight foam concreteBuilding |
| spellingShingle | Mun Ling Ho Ming Chian Yew Ming Kun Yew Lip Huat Saw Weng Cheong Tan Richard Kwok Kit Yuen Novel cool roofing technology system with sustainable design for attic temperature reduction Ain Shams Engineering Journal Cool roof Solar energy Lightweight foam concrete Building |
| title | Novel cool roofing technology system with sustainable design for attic temperature reduction |
| title_full | Novel cool roofing technology system with sustainable design for attic temperature reduction |
| title_fullStr | Novel cool roofing technology system with sustainable design for attic temperature reduction |
| title_full_unstemmed | Novel cool roofing technology system with sustainable design for attic temperature reduction |
| title_short | Novel cool roofing technology system with sustainable design for attic temperature reduction |
| title_sort | novel cool roofing technology system with sustainable design for attic temperature reduction |
| topic | Cool roof Solar energy Lightweight foam concrete Building |
| url | http://www.sciencedirect.com/science/article/pii/S2090447924000819 |
| work_keys_str_mv | AT munlingho novelcoolroofingtechnologysystemwithsustainabledesignforattictemperaturereduction AT mingchianyew novelcoolroofingtechnologysystemwithsustainabledesignforattictemperaturereduction AT mingkunyew novelcoolroofingtechnologysystemwithsustainabledesignforattictemperaturereduction AT liphuatsaw novelcoolroofingtechnologysystemwithsustainabledesignforattictemperaturereduction AT wengcheongtan novelcoolroofingtechnologysystemwithsustainabledesignforattictemperaturereduction AT richardkwokkityuen novelcoolroofingtechnologysystemwithsustainabledesignforattictemperaturereduction |