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Civil Engineering and Architecture Vol. 12(4), pp. 2731 - 2743
DOI: 10.13189/cea.2024.120417
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Improving the Thermal Performance of External Wall in Common Construction Practice in Lebanon


Fadi Moucharrafie 1,*, Elias Farah 2, Rida Nuwayhid 3, Bechara Nehme 4
1 Department of Architecture, School of Architecture and Design, Holy Spirit University of Kaslik (USEK), Lebanon
2 Department of Civil Engineering, School of Engineering, Holy Spirit University of Kaslik (USEK), Lebanon
3 Faculty of Engineering, American University of Science and Technology (AUST), Lebanon
4 Department of Electrical, Telecommunications and Computer Engineering, School of Engineering, Holy Spirit University of Kaslik (USEK), Lebanon

ABSTRACT

The building envelope with its different components (Windows, roofs, walls, slabs on grade) is one of the main building elements that has a significant impact on the building's energy efficiency. To improve the building's energy efficiency and better control the desired interior temperature, in both cold and hot climates, architects and engineers principally act to hinder the undesired heat flow from within the building to the outside and from outside the building to the inside in order to achieve the desired thermal comfort for the building's occupants. Hence, this paper focuses on one of the most constructional passive elements in the building envelope, namely the external wall. For that reason, a series of calculations are executed to numerically assess the thermal resistance values (R-values) and the thermal transmittance values (U-values) of some external wall ensembles used mainly in common residential building construction practices in Lebanon. The improvement of the thermal insulation is made by adding a 4 cm thick extruded polystyrene board mounted with a 2.5 mm thick polypropylene mesh upon which a 12.5 mm thick plaster layer is applied. The thermal transmittance was reduced by 75%.

KEYWORDS
Buildings, External Walls, Thermal Resistance, Coastal Lebanon

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Fadi Moucharrafie , Elias Farah , Rida Nuwayhid , Bechara Nehme , "Improving the Thermal Performance of External Wall in Common Construction Practice in Lebanon," Civil Engineering and Architecture, Vol. 12, No. 4, pp. 2731 - 2743, 2024. DOI: 10.13189/cea.2024.120417.

(b). APA Format:
Fadi Moucharrafie , Elias Farah , Rida Nuwayhid , Bechara Nehme (2024). Improving the Thermal Performance of External Wall in Common Construction Practice in Lebanon. Civil Engineering and Architecture, 12(4), 2731 - 2743. DOI: 10.13189/cea.2024.120417.