Towards the decarbonization of residential buildings through roof External Thermal Insulation (ETI) in arid zones: A case study
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Abstract
The objective of this article is to present a range of effective thermal insulation techniques for flat roofs, based on natural insulating materials, in order to reduce excessive energy consumption used for heating and air conditioning, improve the thermal comfort of occupants, reduce the high costs associated with energy bills, and minimize the emissions of harmful CO2 gas from buildings. In this context, the methodology followed involves studying an existing residential apartment located in an arid region. To do this, three combinations of external thermal insulation systems (ETI) have been proposed: a hot roof system, an inverted roof system, and a combined roof system, supported by a numerical simulation carried out with natural-based thermal insulation systems (wood fiber and expanded cork). Subsequently, an economic study was conducted for all the tested systems. The numerical results obtained show that the combined roof thermal insulation system, with double insulation using wood fiber (3 cm) and expanded cork (4 cm), is the optimal solution, yielding savings of 7736.83 DZD per year. Additionally, the reduction in energy consumption (kWh/m². year) and CO2 carbon emissions (kg/year) were approximately 52.34% and 40.65% respectively.
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
References
Belayachi N, Boulnois J, Hoxha D. Thermal rehabilitation of a residential house using straw concrete biocomposite. Acad J Civ Eng. 2017;35(1):451-54. (In French)
Dakhia A, Zemmouri N. The life cycle assessment (LCA) of a sustainable building through the study of the thermal insulation system: case of an office building in the city of Biskra, Algeria. Courrier du Savoir. 2018;26:191-202. (In French)
Thiers S. Energy and environmental assessments of positive energy buildings [thesis]. France: National School of Mines of Paris; 2008.
Fragos MM, Trouillez. The insulation guide: better understanding to choose well [Internet]. Paris: Fine Media; 2012 [cited 2023 Jan 3]. Available from: https://www.yumpu.com/fr/document/read/19826396/le-guide-de-lisolation. (In French)
Bloch-Lainé JM. Practical guide to thermal insulation in buildings. France: Eyrolles; 1977. (In French)
Zoure AN, Genovese PV. Implementing natural ventilation and daylighting strategies for thermal comfort and energy efficiency in office buildings in Burkina Faso. Energy Rep. 2023;9:3319-42.
Soret GM, Vacca P, Tignard J, Hidalgo JP, Maluk C, Aitchison M, et al. Thermal inertia as an integrative parameter for building performance. J Build Eng. 2021;33:101623.
Mandilaras I, Atsonios I, Zannis G, Founti M. Thermal performance of a building envelope incorporating ETICS with vacuum insulation panels and EPS. Energy Build. 2014;85:654-65.
Benoudjafer I, Benoudjafer I. Innovation facade for energy performance and thermal comfort of the building in a hot and dry climate. J Fundam Appl Sci. 2020;12(3):1350-65.
Sekhar SC. Thermal comfort in air-conditioned buildings in hot and humid climates - why are we not getting it right?. Indoor Air. 2016;26(1):138-52.
Ziad S, Benoudjafer I, Benoudjafer I. Does the shared vision of social identities influence the quality of civil construction by reinforcing the type of thermal insulation, and by creating or improving thermal comfort?. Technium Soc Sci J. 2023;40:366-77.
Canbolat AS. An integrated assessment of the financial and environmental impacts of exterior building insulation application. J Clean Prod. 2024;435:140376.
Bendouma M. Externel thermal insulation systems: experimental and numerical studies of heat and humidity transfers [thesis]. French: University of South Brittany; 2018. (In French)
Ducoulombier LW. Design of a new exterior insulation system for the building [thesis]. French: Central School of Lille; 2014. (In French)
ADEME. Isolate your home contents isolation, the key to a successful renovation. French: ADEME; 2024. (In French)
Saied AE, Maalouf C, Bejat T, Wurtz E. Slab-on-grade thermal bridges: a thermal behavior and solution review. Energy Build. 2022;257:111770.
Chandra MS, Nandapala K, Priyadarshana G, Halwatura RU. Developing a durable thermally insulated roof slab system using bamboo insulation panels. Int J Energy Environ Eng. 2019;10(4):511-22.
Nascimento US, Ismail KAR, Lino FAM, Nóbrega CRES. Crushed rubber from used tires for thermal insulation of walls and flat roofs: modeling, validation and comparison with conventional technology. Arab J Sci Eng. 2021;(46)12:12355-72.
Meddage DPP, Chadee A, Jayasinghe MTR, Rathnayake U. Exploring the applicability of expanded polystyrene (EPS) based concrete panels as roof slab insulation in the tropics. Case Stud Constr Mater. 2022;17:e01361.
Martinovic S, Zecevic N. Energy efficiency features of vernacular house in Bosnia and Herzegovina: a case study of Svrzo’s house complex. Herit Sustain Dev. 2023;5(1):77-98.
Adrian MM, Purnomo EP, Enrici A, Khairunnisa T. Energy transition towards renewable energy in Indonesia. Herit Sustain Dev. 2023;5(1):107-18.
Hameed AI, Kakoo HS, Musa VA, Abdulla SI, Ebrahimpou A. A multi-sectional analysis of building height, layout, and urban density on seasonal energy consumption: a case study. Sustain Eng Innov. 2024;6(2):167-76.
Ascanio-Villabona JG, Tarazona-Romero BE, Duran-Sarmiento MA, Lengerke O, Betancur-Arboleda LA. Evaluation of the thermal performance of housing envelopes as passive cooling systems. Sustain Eng Innov. 2023;5(2):177-88.
Dharmasena PM, Meddage DPP, Mendis ASM. Investigating applicability of sawdust and retro-reflective materials as external wall insulation under tropical climatic condition. Asian J Civ Eng. 2022;23:531-49.
Meddage DPP, Jayasinghe MTR. Use of EPS based light-weight concrete panels as a roof insulation material for NERD slab system. In: Dissanayake R, Mendis P, Weerasekera K, De Silva S, Fernando S, editors. Lecture Notes in Civil Engineering, vol. 174. Singapore: Springer; 2022. p. 375-84.
Miskinis K, Dikavicius V, Buska A, Banionis K. Influence of EPS, mineral wool and plaster layers on sound and thermal insulation of a wall: a case study. Appl Acoust. 2018;137:62-8.
Reynoso LE, Carrizo Romero ÁB, Viegas GM, San Juan GA. Characterization of an alternative thermal insulation material using recycled expanded polystyrene. Constr Build Mater. 2021;301:124058.
Asdrubali F, D’Alessandro F, Schiavoni S. A review of unconventional sustainable building insulation materials. Sustain Mater Technol. 2015;4:1-17.
Ben Amor R, Gueddich N. Improving the energy performance of residential buildings in Tunisia between choice and requirement. J Adv Res Sci Technol. 2020;7(1):1-11. (In French)
Athayde JN, Fernandes BL, de M Siqueira CJ, Nohama P, Fernandes CR. Device for in vitro wear analysis of biomaterials in the hinged prosthesis configuration. Facta Univ Ser: Mech Eng. 2018;16(3):381-8.
Durakovic B, Yildiz G, Yahia ME. Comparative performance evaluation of conventional and renewable thermal insulation materials used in building envelops. Tehnički vjesnik. 2020;27(1):283-9.
Oushabi A, Sair S, Abboud Y, Tanane O, El Bouari A. Natural thermal-insulation materials composed of renewable resources: Characterization of local date palm fibers (LDPF). J Mater Environ Sci. 2015;6(12):3395-402.
Wikipedia. Bechar [Internet]. 2022 [cited 2022 Oct 3]. Available from: https: //Fr.wikipédia.org/wiki/Béchar.
The National Company of Electricity and GAZ (SONELGAZ). Data of Electricity and Gas. Bechar: SONELGAZ; 2023.
Trachte S, De Herde A. Development of a tool to assist in the design of very low energy consumption houses. Belgium: Wallonie SPW Energy; 2010. (In French)
International Organization for Standardization (ISO). Ergonomics of the thermal environment - analytical determination and interpretation of thermal comfort using calculation of the Predicted Mean Vote (PMV) and the Predicted Percentage of Dissatisfied (PPD) indices and local thermal comfort criteria. ISO 7730. Geneva: ISO; 1994.
American Society of Heating, Refrigerating and Air-Conditioning Engineers. ASHRAE Handbook: Refrigeration. Atlanta: American Society of Heating, Refrigerating and Air-Conditioning Engineers; 2017.
Ghajar AJ, Cengel YA. Heat and mass transfer: fundamentals and applications. 5th ed. New York: McGraw-Hill Education; 2014.
Ministry of Housing. Thermal regulation of residential buildings: rules for calculating heat losses DTR C 3-2. Technical Regulatory Doc. Algeria: Ministry of Housing; 1997.
Agency for Ecological Transition. Succeeding in the ecological transition [Internet]. 2023 [cited 2023 Dec 18]. Available from: https://www.ademe.fr/.
Shaik S, Talanki ABPS. Optimizing the position of insulating materials in flat roofs exposed to sunshine to gain minimum heat into buildings under periodic heat transfer conditions. Environ Sci Pollut Res. 2016;23(10):9334-44.
Toutsurlisolation. The price of insulation [Internet]. 2023 [cited 2023 Dec 30]. Available from: https://www.toutsurlisolation.com/comparatifs-isolants-prix-de-lisolation-thermique. (In French)
Expertise renovation. How to insulate your flat roof? [Internet]. 2023 [cited 2023 Dec 30]. Available from: https://www.expertise-renovation.com/isolation/tout-savoir-sur-lisolation-dun-toit-terrasse/. (In French)
Global petrol prices. Algeria fuel prices, electricity prices, natural gas prices [Internet]. 2023 [cited 2023 Dec 30]. Available from: https://fr.globalpetrolprices.com/Algeria/.