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Journal articles on the topic 'Concrete Roofs'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 July 2025

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1

Liu, Chang, Xiaoyong Zhang, Mingjie Jiang, Shengnan Zhu, Zhuan Wang, and Jianxu Long. "The Coupled Thermal Response Analysis of Green Roofs Based on the Discrete Element Method." Buildings 14, no. 12 (2024): 3984. https://doi.org/10.3390/buildings14123984.

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As an effective energy-saving measure, green roofs significantly improve the thermal environment of buildings by covering the roof with vegetation and soil. This paper compares the thermal transfer performance of concrete roofs and green roofs under different temperature conditions. First, a uniaxial compression discrete element method (DEM) was used to calibrate the mesoscopic parameters of concrete, ensuring an accurate representation of concrete properties. The results indicate that green roofs have significant insulation effects under high-temperature conditions in summer. After being expo

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Yuliani, Sri, Gagoek Hardiman, and Erni Setyowati. "A COMPARISON OF HEAT PERFORMANCE BETWEEN GREEN ROOFS ON CONCRETE AND GREEN ROOFS ON CORRUGATED ZINC." DIMENSI (Journal of Architecture and Built Environment) 47, no. 2 (2021): 55–64. http://dx.doi.org/10.9744/dimensi.47.2.55-64.

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Green roofs are generally applied to concrete roofed buildings. This study compares the thermal performance of green roofs that occur in corrugated concrete and zinc to expand green roof innovation. The study experimented on a method using the 2011 Ecotect computer simulation. The results showed that the difference in temperature reduction in corrugated zinc was higher than in concrete. Changes in heat outside the roof space on both have a number that has a relatively small difference, but the difference in heat is visible in the inner space. Based on the thermal performance of the roof, the u

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Shushunova, Natalia Sergeevna, Elena Anatolyevna Korol, and Nikolai Ivanovich Vatin. "Modular Green Roofs for the Sustainability of the Built Environment: The Installation Process." Sustainability 13, no. 24 (2021): 13749. http://dx.doi.org/10.3390/su132413749.

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The research object is the installation process of modular green roofs with planters placed on the concrete roof’s surface. These roofs effectively reduce rainfall disposal, prolong the lifespan of the roof coating, and enhance urban aesthetic and recreational spaces. Green roofs reduce houses’ gas emissions and increase green spaces in densely built areas. The spatial–technological model was developed for the proposed modular green roof based on network planning, scheduling theory, and graph theory. The sequence and composition of technological processes and operations were established for th

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Wiecko, Greg. "Green Roofs in the Tropics Conserve Energy." Open Atmospheric Science Journal 10, no. 1 (2016): 1–5. http://dx.doi.org/10.2174/1874282301610010001.

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Background: Concrete buildings on Guam are exceptionally strong but also accumulate large amounts of heat. In the tropical environment of Guam, where 24 h average temperature ranges from 28 to 29°C year round, air conditioning is used every day and continuously. Concrete roofs are often painted light colors, which make them more reflective and accumulate less heat. They are also suitable for establishment of vegetation, which results in a large decrease in roof temperature and therefore decreases the need for cooling. Objective: The objective was to determine the magnitude of temperature reduc

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Abuseif, Majed, and Zhonghua Gou. "A Review of Roofing Methods: Construction Features, Heat Reduction, Payback Period and Climatic Responsiveness." Energies 11, no. 11 (2018): 3196. http://dx.doi.org/10.3390/en11113196.

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The roofs of buildings play an essential role in energy efficiency because a significant amount of solar radiation is absorbed by roofs in hot weather and a significant amount of heat is lost through roofs in cold weather. This paper is a systematic literature review about roofing methods for flat roofs. Ten roofing methods are reviewed in this paper. They are concrete roof, cool roof, insulated roof, roof garden, photovoltaic panels’ roof, biosolar roof, double-skin roof, roof ponds, skylight roof, and wind catcher. The review covers each roof’s main features, heat flux reductions, payback pe

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Alnkhailan, Eng Tareq, and Eng Ali Alfadhli. "Construction Roofs Properties and Temperature Transfer between the Roofs." Academic Journal of Research and Scientific Publishing 5, no. 59 (2024): 51–60. http://dx.doi.org/10.52132/ajrsp.e.2024.59.3.

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This study aimed to explore the disadvantages of solid concrete slabs and sandwich panels as roofing structures in the Arabic Gulf area and explore the differences between traditional solid concrete slabs and sandwich panels roofing systems, highlighting the benefits and usage of EPS panels over traditional systems. The study methodology focuses on scientific analysis of EPS panels' chemical compound and physical characteristics, highlighting their suitability for various construction roofing applications in a tested field. The study conclude that, the The EPS panels are the better modern era

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Zheng, Shu Kui, and Jie Zhang. "Thermal Characteristics Comparison for Several Roofs of Naturally Ventilated Rooms." Applied Mechanics and Materials 170-173 (May 2012): 2681–85. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.2681.

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Four kinds of insulation roofs of naturally ventilated rooms in Chengdu(P.R.C) were tested to evaluate the thermal performance in summer. The thermal characteristics of roofs with different construction were compared by regression analysis. The experimental results showed a strong negative correlation between the highest outdoor air temperature and the largest temperature increment. As the highest outdoor air over 29.1°C, the light green ventilated roof has the best insulation performance. Under "sunny - rain" climatic conditions in summer, the heat flux through the extruded polystyrene insula

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ANCHOR, R. D. "CONCRETE SHELL ROOFS, 1945-1965." Proceedings of the Institution of Civil Engineers - Structures and Buildings 116, no. 3 (1996): 381–89. http://dx.doi.org/10.1680/istbu.1996.28749.

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9

Strasky, Jiri, Pavlína Juchelková, Pavel Kaláb, and Radim Nečas. "Roofs of prestressed concrete membranes." Structural Concrete 18, no. 1 (2017): 5–18. http://dx.doi.org/10.1002/suco.201600037.

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10

Saleh, Muhammad, Puteri Fitriaty, and Andi Jiba Rifai Bassaleng. "Performance of Green Roofs on Building Energy Efficiency in Tropical and Subtropical Climates." Technium Social Sciences Journal 68 (February 8, 2025): 316–31. https://doi.org/10.47577/tssj.v68i1.12411.

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This research examines the performance of green roof architectural designs in enhancing energy efficiency in buildings within tropical and subtropical climates. Green roofs, which integrate vegetation and planting media, can improve energy efficiency by reducing the heat absorbed by buildings, thereby increasing indoor thermal comfort and lowering the need for air conditioning. The study employs a comparative method to analyse the performance of green roofs in improving energy efficiency across both climates. From 218 selected searches, 15 studies indicate that both intensive and extensive gre

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Omarov, Zh, G. Tleulenova, K. Makashev, G. Zhukenova, and K. Abdrakhmanova. "ENERGY-EFFICIENT TECHNOLOGIESFOR THE USE OF STRUCTURES AND COMPOSITE MATERIALS OF WOOD WASTE." Mechanics and Technologies, no. 1 (March 30, 2025): 200–208. https://doi.org/10.55956/qszd4922.

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In modern low-rise housing construction, metal tiles, rolled roofing, various types of wooden roofing, metal roofing, precast reinforced concrete slabs, wavy asbestos cement sheets, reinforced concrete rafters are used for roofs and roofs. The production of many of these types of roofs has a limited industrial base, requires significant consumption of materials and labor intensity of construction work, or involves significant consumption of wood, and their production volumes do not meet the demand of modern construction. An alternative solution is the production of one of the slab materials –

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Šaraškinas, Viačeslavas, and Balys Valiūnas. "TESTING AND CALCULATING THREE‐HINGE SUSPENSION STRUCTURES OF HOLLOW CONCRETE‐FILLED STEEL TUBULAR MEMBERS." Technological and Economic Development of Economy 13, no. 2 (2007): 153–58. http://dx.doi.org/10.3846/13928619.2007.9637791.

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Recently in the research publications an information about a new type of suspended straight‐line 3‐hinge roof structures has appeared. In this sources it was stressed that straight‐line elements is easy to manufacture and erect, roof decking service conditions are good. In the world building practice during last 30 years very effective composite structures were introduced, even hollow concrete‐filled steel tubular members. At this time no information about the application of such members for suspended roofs was obtained. In some sources very simple straight‐line suspended roofs structures were

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Musilek, Josef. "Interaction of collar roof with the bottom support structure of a building." MATEC Web of Conferences 146 (2018): 02005. http://dx.doi.org/10.1051/matecconf/201814602005.

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Collar roofs belong to the traditional structures used for roofing buildings. In present, the collar roofs are widely used for their ability to omit internal vertical support structures (columns, support walls), which might be sometimes a complication during a design of the layout of the building. Collar roof acts on the bottom support structure of the building by quite big lateral horizontal forces. These forces are being often neglected in common practice. This fact leads to failures of the bottom support structures. Reinforced concrete rim made on the top of the brick wall is one of the met

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Dib, Mehdi, and Salah Hadjout. "Green Roof Retrofitting in Algeria Between Sustainability and Seismic Vulnerability." Journal of Architectural and Engineering Research 7 (December 25, 2024): 49–59. https://doi.org/10.54338/27382656-2024.7-05.

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Installing green roofs in urban areas is a sustainable practice towards the ecological transition, they offer many advantages with regards to reducing energy consumption, mitigating the urban heat island effect, managing runoff ...etc. In order to propagate this technique, green roofs have to be installed on the top of existing buildings, which can increase their vulnerability during seismic events. The present paper aims to evaluate the impact of green roof retrofitting on the seismic performance of a collective housing in Algeria. To this end, the finite element method was adopted to investi

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Kalantar, B., S. Mansor, Z. Khuzaimah, M. Ibrahim Sameen, and B. Pradhan. "MODELLING MEAN ALBEDO OF INDIVIDUAL ROOFS IN COMPLEX URBAN AREAS USING SATELLITE IMAGES AND AIRBORNE LASER SCANNING POINT CLOUDS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W7 (September 12, 2017): 237–40. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w7-237-2017.

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Knowledge of surface albedo at individual roof scale is important for mitigating urban heat islands and understanding urban climate change. This study presents a method for quantifying surface albedo of individual roofs in a complex urban area using the integration of Landsat 8 and airborne LiDAR data. First, individual roofs were extracted from airborne LiDAR data and orthophotos using optimized segmentation and supervised object based image analysis (OBIA). Support vector machine (SVM) was used as a classifier in OBIA process for extracting individual roofs. The user-defined parameters requi

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Seo, Yongwon, Youjeong Kwon, and Junshik Hwang. "Surface Energy Balance of Green Roofs Using the Profile Method: A Case Study in South Korea During the Summer." Sustainability 17, no. 6 (2025): 2725. https://doi.org/10.3390/su17062725.

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This study introduces the profile method as a simple and less expensive approach for estimating the surface energy balance of green roofs, addressing the limitations of costly monitoring systems based on measurements at two vertical points. Four separate experiment buildings were constructed to minimize temperature disturbances: concrete, highly reflective painted, short bamboo, and grass-roofed. This setup allowed the evaluation of the thermal performance of each roof type without interference from connected building structures. The flux profile method was used to estimate sensible and latent

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Hernández-Pérez, Iván. "Influence of Traditional and Solar Reflective Coatings on the Heat Transfer of Building Roofs in Mexico." Applied Sciences 11, no. 7 (2021): 3263. http://dx.doi.org/10.3390/app11073263.

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Building roofs are sources of unwanted heat for buildings situated in zones with a warm climate. Thus, reflective coatings have emerged as an alternative to reject a fraction of the solar energy received by roofs. In this research, the thermal behavior of concrete slab roofs with traditional and solar reflective coatings was simulated using a computational tool. The studied slab configurations belong to two groups, non-insulated and insulated roofs. In the second group, the thermal insulation thickness complies with the value recommended by a national building energy standard. Weather data fro

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Korol, Elena, and Maksim Sadkovskiy. "INVESTIGATION OF TECHNOLOGICAL PARAMETERS OF THE DEVICE AND REPAIR OF THE BASES OF FLAT ROOFING." Construction and Architecture 9, no. 3 (2021): 31–35. http://dx.doi.org/10.29039/2308-0191-2021-9-3-31-35.

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In the practice of modern construction, light concretes of low thermal conductivity are used as a thermal insulation layer of enclosing structures. In particular, they are used for insulation of flat roofs of buildings for various purposes. One of their effective methods of thermal insulation is the use of polystyrene concrete of low average density and thermal conductivity directly in building conditions. Studies have established the rational selection of the composition of this type of concrete for the device of a monolithic thermal insulation layer, the resource support of the technological

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19

Quan, Hong Zhu. "Green Roofs System with Porous Ecological Concrete." Applied Mechanics and Materials 174-177 (May 2012): 966–69. http://dx.doi.org/10.4028/www.scientific.net/amm.174-177.966.

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Because of its durability and strength, more and more porous concrete has been used for riverbank protection or foundations of greenery. This study described a new type of green roof system without a soil layer on the porous concrete. This paper also discussed reuse of waste (fly ash generated from thermal power stations and aggregate made of ALC panel waste) to configure a newly proposed thin-type green roof system. As a result, the pilot model of lightweight thin type porous planting foundation satisfied the dynamic strength and ensured 30% void ratio needed for viability of vegetation.

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20

Jaegermann, Chanoch, Moshe Puterman, and Eitan Haviv. "Blistering of Membranes Over Foam‐Concrete Roofs." Journal of Materials in Civil Engineering 1, no. 1 (1989): 31–45. http://dx.doi.org/10.1061/(asce)0899-1561(1989)1:1(31).

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21

Madhumathi, A., S. Radhakrishnan, and R. Shanthipriya. "Thermal Performance Evaluation of Green Roofs in Warm Humid Climates: A Case of Residential Buildings in Madurai, India." Key Engineering Materials 692 (May 2016): 82–93. http://dx.doi.org/10.4028/www.scientific.net/kem.692.82.

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Green roof application on real residential buildings in Tamilnadu, India is very limited and mostly concentrated in major cities mainly for visual purposes. There is not enough research has been conducted to boost up the benefits of green roof system in Warm and Humid weather in India. Green roofs have the potential to improve the thermal performance of a roofing system through shading, insulation, evapotranspiration and thermal mass, thus reducing a building’s energy demand for space conditioning. To quantify the thermal performance and energy efficiency of green roofs an experimental investi

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Rajput, Sadam Hussain, Qadir Bukhsh Jamali, Imdad Ali Memon, Adnan Ali Rajput, and Abid Ali Khaskheli. "Heat Transfer Rate Analysis of Different Roof Insulation Materials." Journal of Applied Engineering & Technology (JAET) 6, no. 2 (2022): 63–74. http://dx.doi.org/10.55447/jaet.06.02.84.

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The building sector is crucial in Middle East countries because it is one of the primary energy consumers. Currently, reinforced cement concrete (RCC) is preferred for roof construction due to its durability and possesses higher strength. Heat is conducted rapidly through rooftops composed of RCC because it has more thermal conductivity compared to other roofing materials. In the Middle East, RCC roofs are usually lined with marble and polyurethane to increase thermal insulation and reduce heat transfer from the roofs. In this research, the thermal conductivities and temperature reduction capa

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Tschiersch, Kim-Christin, Julian Ernesto Jaramillo Ibarra, and Karen Alexandra Ruíz Bernal. "Comparative-experimental study of different roof types in a tropical climate." Inge CuC 17, no. 2 (2021): 42–50. http://dx.doi.org/10.17981/ingecuc.17.2.2021.05.

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Introduction: The implementation of green roofs in buildings has become increasingly common, because it is an ecological construction alternative that provides great benefits, which range from reducing air pollution to improving air conditioning inside of the buildings. Objective: This article aims to evaluate whether extensive green roofs are an energy-valuable option in a tropical climate compared to a thermoacoustic, clay tile, and concrete roof. Methodology: An experimental study was carried out in summer (December) in a tropical climate, where the internal temperature of two identical sma

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Korol, Elena, and Maksim Sadkovskiy. "RESEARCH OF TECHNOLOGICAL PARAMETERS OF DEVICE AND REPAIR OF FLAT ROOF COATINGS." Construction and Architecture 10, no. 3 (2022): 21–25. http://dx.doi.org/10.29039/2308-0191-2022-10-3-21-25.

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In the practice of modern construction, light concretes of low thermal conductivity are used as a heat-insulating layer of enclosing structures. In particular, they are used for warming flat roofs of buildings for various purposes. One of the effective methods of thermal insulation is the use of polystyrene concrete of low average density and thermal conductivity directly in construction conditions. Research has established a rational selection of the composition of this type of concrete for the installation of a monolithic heat-insulating layer, resource support for the technological process,

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Woon, Chin-Ong, Sudharshan N. Raman, Md Safiuddin, Maslina Jamil, and Muhammad Fauzi Mohd Zain. "Development of an Assessment Method to Evaluate the Quality of Remedial Treatments on Concrete Flat Roofs of Multiple Buildings." Buildings 9, no. 5 (2019): 124. http://dx.doi.org/10.3390/buildings9050124.

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Existing assessment tools have not been successfully used to evaluate the performance of the remedial treatment of concrete flat roofs by building users or building management personnel because they are complicated and difficult to be applied by non-experts. In this study, a semi-quantitative method has been developed to assess the quality of remedial treatment on concrete flat roofs of multiple buildings. A 10-point scale weighting was calculated based on the results of ranking, and then the score assessment scheme was developed. Results revealed that the repairing principles included protect

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Maheri, Mahmoud R. "Performance of Building Roofs in the 2003 Bam, Iran, Earthquake." Earthquake Spectra 21, no. 1_suppl (2005): 411–24. http://dx.doi.org/10.1193/1.2098859.

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Roofs covering buildings in the city of Bam, Iran prior to the earthquake of 26 December 2003 can be categorized into three main groups: traditional masonry dome or vault, steel I-beam jack-arch system, and concrete beam-hollow block system. The collapse of nonengineered masonry roofs and floor slabs during the earthquake was the single largest contributor to the large number of fatalities. This paper discusses the seismic performance of each type of roofing and their strengths and weaknesses. The poor seismic performance of traditional domes and vault roofs and unanchored jack-arch slabs are

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Nadja Martins de Mendonça, Tatyane, Vitor Muniz Henriques, and Aluísio Braz de Melo. "Extensive Green Roofs (Modulars, Continuous and Aerial) Supported on Premolded Concrete Bases." International Journal of Engineering and Technology 7, no. 5 (2015): 370–76. http://dx.doi.org/10.7763/ijet.2015.v7.821.

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Dinh Tho, Vu, Elena Korol, and Nguyen Huy Hoang. "Analysis of the effectiveness of thermal insulation of a multi-layer reinforced concrete slab using layer of concrete with low thermal conductivity under the climatic conditions of Vietnam." MATEC Web of Conferences 251 (2018): 04026. http://dx.doi.org/10.1051/matecconf/201825104026.

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Multi-layer reinforced concrete slabs with thermal insulation materials are widely used in practice all over the world. In Vietnam, in order to apply modern construction of multi-layer structures with an inner layer of low thermal conductivity concrete into practice, it is necessary to conduct numerical researches on the peculiarities of the country climatic conditions country. In this paper, the authors analyze the heat transfer in multilayer reinforced concrete slabs’ roof under the climatic conditions of Hanoi (Vietnam) using finite element method with computer simulation. The object of the

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Jawad, Nida, Dr Syeda Raaeha Tuz Zahra Abidi, and Dr Amna Jahangir Jahangir. "GREEN ROOFS: MORE THAN JUST A PRETTY FACE." Journal of Arts & Social Sciences (JASS) 9, no. 1 (2022): 111–20. http://dx.doi.org/10.46662/jass.v9i1.237.

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Green Roof is basically a traditional concept which is revived and executed to focus and improve adverse effects of our urban environment. Benefits and impacts of green roof are not fully understood and valued. This paper reviews and discusses the different benefits of green roofs as solutions in reducing the energy, maintaining indoor temperatures, enhancing sound insulation and fire resistance, increasing life span of the roof, providing green spaces in concrete jungles, reduction of UHI effects and improved air quality. In addition to all this green roof also increases the aesthetics of bui

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Bochkova, I. Y., and M. D. Tulush. "About extensive green roofs." FORESTRY BULLETIN 24, no. 5 (2020): 5–11. http://dx.doi.org/10.18698/2542-1468-2020-5-5-11.

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There are so many things made of concrete, glass and metal in modern cities. All of this displace nature and there is no space for planting. Plants produce oxygen and clean the environment. That is why the landscaping of the roofs of buildings is a kind of compensation in landscaping. The article is about studying methods of creating extensive green roofs from the origin to nowadays. The work includes the study of historical, architectural and regulatory documents and some literary sources. It also includes some facts from the history of green roofs creation, which appeared in the 9th century,

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Sen, Sushobhan, Jeffery Roesler, Benjamin Ruddell, and Ariane Middel. "Cool Pavement Strategies for Urban Heat Island Mitigation in Suburban Phoenix, Arizona." Sustainability 11, no. 16 (2019): 4452. http://dx.doi.org/10.3390/su11164452.

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Urban areas are characterized by a large proportion of artificial surfaces, such as concrete and asphalt, which absorb and store more heat than natural vegetation, leading to the Urban Heat Island (UHI) effect. Cool pavements, walls, and roofs have been suggested as a solution to mitigate UHI, but their effectiveness depends on local land-use patterns and surrounding urban forms. Meteorological data was collected using a mobile platform in the Power Ranch community of Gilbert, Arizona in the Phoenix Metropolitan Area, a region that experiences harsh summer temperatures. The warmest hour record

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Suaris, Wimal, and Mohammed S. Khan. "Performance of Prestressed Concrete Roofs during Hurricane Andrew." Journal of Performance of Constructed Facilities 8, no. 1 (1994): 16–30. http://dx.doi.org/10.1061/(asce)0887-3828(1994)8:1(16).

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Day, Robert W. "Performance of Prestressed Concrete Roofs during Hurricane Andrew." Journal of Performance of Constructed Facilities 9, no. 2 (1995): 157. http://dx.doi.org/10.1061/(asce)0887-3828(1995)9:2(157).

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Kvaraia, Irakli, and Ioseb Giorgobiani. "SIMPLIFICATION OF THE REINFORCED CONCRETE ARCHED ROOFING CONSTRUCTION." Architecture and Engineering 8, no. 2 (2023): 58–62. http://dx.doi.org/10.23968/2500-0055-2023-8-2-58-62.

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In this paper, we discuss issues arising in the construction of cast-in-situ reinforced concrete arched roofs and ways to simplify their design. Despite the versatility of existing mold systems in construction, shell-type roofing structures are entirely different from other structural elements widely used in construction practice in terms of their outline and overall dimensions. Therefore, to erect them, it is necessary to build an individual mold system, which would provide the appropriate spatial shape for cast-in-situ reinforced concrete roofing. Due to the scale of shell roofs, the install

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Basuki, Kristina, I. Gusti Ngurah Antaryama, and FX Teddy Badai Samodra. "Simulation Modelling of Roof Design of Indonesian Airport Terminal For Optimal Utilization of Cooling Energy." International Journal of Engineering Research and Advanced Technology 08, no. 07 (2022): 17–22. http://dx.doi.org/10.31695/ijerat.2022.8.7.3.

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The airport terminal is one of buildings with complex energy needs. Most of the airport terminals in Indonesia are designed with regional architectural features, such as pitched or joglo roofs and exterior wall materials made of brick with paint finish. The new airport is designed with modern architectural characteristics with flat and curved roofs and outer walls made of Aluminum Composite Panel (ACP). The difference of shape, material, and the size of fenestration affects the thermal performance of the building and affects the cooling energy used. The purpose of this study is to evaluate the

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Asaad, Wurood, Lina M. Shaker, and Ahmed Mahdi. "An Experimental Study on the Effect of Nano Zinc Oxide on Reflective Coatings and Building Roof Temperatures." Materials Science Forum 1131 (November 5, 2024): 109–18. http://dx.doi.org/10.4028/p-gdblu6.

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Most roofs on Earth are made of dark materials. Dark roof surfaces can retain heat better than light ones; in Iraq, summer time temperatures on the roofs of dark buildings reached 70–80 degrees Celsius in July and August. The effects of this temperature rise are detrimental to cooling and energy consumption. To lessen heat transfer into the building, use reflective surfaces that can reflect infrared radiation waves. Cool roofs have both short-term and long-term advantages. They can reduce a building's annual air conditioning energy consumption by up to 15%, extend the life of the roof and its

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Kirizsán, Imola, and Adrian Tudoreanu-Crișan. "A Sustainable Approach to Reconstruction: Historical Roof Structure Interventions." Sustainability 16, no. 11 (2024): 4325. http://dx.doi.org/10.3390/su16114325.

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The reconstruction of structural subassemblies in historic buildings is a widely debated topic that often arises throughout a building’s lifespan. The most vulnerable structures and, consequently, the most frequently modified are roofs, due to the materials used, which render them susceptible to biological decay or fire. This paper aims to analyse roof reconstructions across various historical periods and under different circumstances depending on the necessity for construction or reconstruction. Several exceptional reconstructions from Europe are examined, where the final solution was determi

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Mohan, Rawat, and N. Singh R. "Thermal Performance of Composite Roof Structures with Insulating Layers in Non-Conditioned Buildings for Hot-Dry Climate." International Journal of Recent Technology and Engineering (IJRTE) 9, no. 3 (2020): 122–27. https://doi.org/10.35940/ijrte.C4272.099320.

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The roof configurations with an insulating layer and their impact on hourly floating temperature analyzed in a hot-dry climate context. A predefined computer program using a modified Fourier admittance method utilized as the primary research. The thermal performance of ten composite roof structures evaluated to obtain optimal roof structure for hot-dry climate, Jodhpur. Nine composite roof structures with an insulation layer and one without insulation layer as the base case were analyzed for the summer months (April-September). The utilization of roof thermal insulation showed a significant in

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Teng, J. G., H. T. Wong, Z. C. Wang, and S. L. Dong. "Steel-Concrete Composite Shell Roofs: Structural Concept and Feasibility." Advances in Structural Engineering 8, no. 3 (2005): 287–307. http://dx.doi.org/10.1260/1369433054349105.

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This paper describes a new structural system, namely steel-concrete composite shells, for enclosing large spaces and presents test and numerical simulation results to demonstrate its feasibility. These composite shells are formed by pouring concrete on a thin stiffened steel base shell which serves as both the permanent formwork and the tensile steel reinforcement. The thin steel shell, constructed by bolting together open-topped modular units consisting of a base plate with surrounding edge plates, is a steel shell with thin stiffeners in both directions. The new system retains all the benefi

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De Silva, Nayanthara, and Malik Ranasinghe. "Maintainability of reinforced concrete flat roofs in Sri Lanka." Structural Survey 28, no. 4 (2010): 314–29. http://dx.doi.org/10.1108/02630801011071000.

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Tong, Shanshan, Hua Li, Kishor T. Zingre, et al. "Thermal performance of concrete-based roofs in tropical climate." Energy and Buildings 76 (June 2014): 392–401. http://dx.doi.org/10.1016/j.enbuild.2014.02.076.

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Espion, Bernard. "Pioneering hypar thin shell concrete roofs in the 1930s." Beton- und Stahlbetonbau 111, no. 3 (2016): 159–65. http://dx.doi.org/10.1002/best.201600001.

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Ismail, kamal, Fatima Lino, Jorge Henriquez, et al. "Enhancement Techniques for the Reduction of Heating and Cooling Loads in Buildings: A Review." Journal of Energy and Power Technology 05, no. 04 (2023): 1–44. http://dx.doi.org/10.21926/jept.2304031.

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The building sector is rated as a big consumer of electric energy and emissions, responsible for about 40% of final electric energy consumption. As a result, the Paris Agreement 2015 set a goal for buildings and the construction sector to reach a nearly zero-carbon stage by 2050. This urged most countries to create regulations for the construction sector and invest in energy efficiency programs. The present paper aims to present an updated review of building energy-saving solutions and techniques to contribute to carbon emission mitigation in the building sector. The high energy consumption of

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Juras, Peter. "Positive Aspects of Green Roof Reducing Energy Consumption in Winter." Energies 15, no. 4 (2022): 1493. http://dx.doi.org/10.3390/en15041493.

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Greening structures attract worldwide attention because of their multidisciplinary benefits. Green roofs are considered one of the best ways to eliminate summer overheating, mitigate climate change, or reduce the urban heat island effect. The winter season and its impact on building energy consumption are often overlooked. Common standards do not take a green roof structure into consideration because of possible high water content in their layers. Additional roof layers may have a positive effect during the winter; they help reduce surface overcooling in cloudless winter nights. This paper ana

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Ravikumar, Muthaiyan, and PSS Srinivasan. "Analysis of heat transfer across phase change material filled reinforced cement concrete roof for thermal management." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 226, no. 12 (2012): 2933–40. http://dx.doi.org/10.1177/0954406212439379.

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Analysis of heat transmission across three roof structures, namely, bare reinforced cement concrete roof, reinforced cement concrete roof with weathering coarse and reinforced cement concrete roof with phase change material above reinforced cement concrete are analysed. A transient numerical procedure is developed. The numerical procedure is validated against the available experimental data. The simulation is carried out on 365 days of year for these three roofs. The phase change material melts from 8 to 18 h and solidifies during the rest of the day. From March to August, the net heat enterin

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Fabbri, Kristian, Fabrizio Barbieri, and Francesca Merli. "Using natural fibre insulators on green roofs: some considerations." E3S Web of Conferences 197 (2020): 02015. http://dx.doi.org/10.1051/e3sconf/202019702015.

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This study focuses on the application of coconut fibre insulators, an insulating material rarely utilized in the Mediterranean context. Despite its undoubted thermal performance, some queries are related with of his thermo-hygrometric behavior. More precisely, during the use of coconut for covering building for realizing green roofs, which represent a technological solution often adopted in the case of sustainable buildings or nearly zero energy building. Green roofs represent a valid constructive solution with high thermal performances, adopted in existing and new buildings. This paper invest

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Faqrudin, Ahcmad Faruk, Syaiful Kharis Setiawan, Riza Susanti, and Puji Widodo. "Pemanfaatan Limbah Serbuk Kayu dan Fly-Ash Sebagai Bahan Tambah Pembuatan Genteng Beton Eco-Friendly." Jurnal Sipil dan Arsitektur 1, no. 1 (2023): 33–42. http://dx.doi.org/10.14710/pilars.1.1.2023.33-42.

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Some roofs in Indonesia still use concrete tiles because they are expensive and heavy. Indonesia is also the country that produces the most wood and coal in the world, this will cause sawdust and fly ash waste. Therefore, research was carried out aimed at using sawdust and fly-ash waste as mixed materials and trying to make lighter concrete roof tiles. So that in its use it can lighten roof construction and also utilize waste so that concrete roof tiles become more economical but have quality that meets SNI. The method used is an experimental method, with a cement and sand mixture composition

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G., M. Gasii. "TYPES OF STEEL AND CONCRETE COMPOSITE CABLE SPACE FRAMES." Science and Transport Progress. Bulletin of Dnipropetrovsk National University of Railway Transport, no. 6(66) (December 25, 2016): 158–65. https://doi.org/10.15802/stp2016/90514.

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<strong>Purpose.</strong> Modern terms of the construction generate the need to find new structures, including roof systems that would meet modern requirements. An important aspect in finding constructive solutions for new structures is the use of reliable and advanced materials. Considering this, the decision to develop the new space structures to a wide implementation in practice of domestic and foreign construction are relevant and perspective direction of building structures development. <strong>Methodology.</strong> Given the results of previously conducted theoretical rese

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Mikulica, Karel, and Martin Labaj. "Foam Concrete Gravity Wedges as a Thermal Insulation of Flat Roofs." Key Engineering Materials 722 (December 2016): 331–36. http://dx.doi.org/10.4028/www.scientific.net/kem.722.331.

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Proper selection of thermal insulation materials is an essential part of almost any construction project, whether it is a new construction, renovation or revitalization. There is a large number of materials available on the market and it is often very difficult to have a good grasp. Though some material has very similar features, they often cannot replace each other. The same applies to single-shell flat roofs. So far the most often used thermal insulation boards are from polystyrene and mineral wool. Their installation is accompanied by a large volume of waste. The experimental part deals wit

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Poorova, Zuzana, and Zuzana Vranayova. "Modeling Košice Green Roofs Maps." Selected Scientific Papers - Journal of Civil Engineering 12, no. 1 (2017): 117–22. http://dx.doi.org/10.1515/sspjce-2017-0012.

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Abstract The need to house population in urban areas is expected to rise to 66% in 2050, according to United Nations. The replacement of natural permeable green areas with concrete constructions and hard surfaces will be noticed. The densification of existing built-up areas is responsible for the decreasing vegetation, which results in the lack of evapotranspiration cooling the air. Such decreasing vegetation causes urban heat islands. Since roofs and pavements have a very low albedo, they absorb a lot of sunlight. Several studies have shown that natural and permeable surfaces, as in the case

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