Experimental Thermal Performance Assessment of a Prefabricated External Insulation System for Building Retrofitting

Garay, Roberto; Arregi, Beñat; Elguezabal, Peru

doi:10.1016/j.proenv.2017.03.097

Cited by 24 publications

(14 citation statements)

References 4 publications

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“…Большой опыт строительства сооружений с многослойными наружными ограждениями показывает, что при принятых проектных решениях в соответствии с нормативными требованиями теплотехнические свойства наружных ограждений под влиянием внешних и внутренних факторов не соответствуют действующим нормам [10]. Такое несоответствие происходит из-за так называемых теплонапряженных элементов (ТНЭ) [11]. ТНЭ -это области сопряжения конструктивных элементов ограждающей конструкции с пониженным термическим сопротивлением, которые возникают вследствие теплотехнической неоднородности.…”

Section: Walling Thermal Properties Influenced By Heat-stressed Elemeunclassified

Walling Thermal Properties Influenced by Heat-Stressed Elements in External Corner Area

Kozlobrodov

Иванова

2019

Vestnik Tomskogo gosudarstvennogo arhitekturno-stroitelnogo uni

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It is known that heat-stressed elements greatly affect the thermal properties of walling and contribute to the heat losses of a building. Heat-stressed elements decrease the temperature on the inner walling surface adjacent to the external corners. In addition to increasing heat losses, heat-stressed elements increase the condensation on the inner walling surface leading to mold appearance. This is one of the reasons that shows that the modeling of heat-stressed elements is a very important design stage. The article discusses the effect from these elements on thermal properties of multilayer walling in the external corner of a building. Using the ANSYS software package, the influence of heat-stressed elements on the heat transfer processes is modeled in the external corner area. A quantitative assessment of the thermal state of typical walling fragments under extreme heat-transfer conditions is given. The obtained research results can be used to increase the temperature in the area of heat-stressed elements and reduce their negative impact.

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Section: Walling Thermal Properties Influenced By Heat-stressed Elemeunclassified

Walling Thermal Properties Influenced by Heat-Stressed Elements in External Corner Area

Kozlobrodov

Иванова

2019

Vestnik Tomskogo gosudarstvennogo arhitekturno-stroitelnogo uni

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“…Studies on verifying the excellence of external insulation method in terms of energy efficiency, LCC (Life-Cycle Cost) and construction period through comparative analysis of internal and external insulation methods have been consistently proposed [16][17][18][19][20]. In recent years, studies have been conducted to evaluate the heat transfer rate and airtightness of the external insulation method applied to the Passivhaus-a voluntary standard for energy efficiency in a building that recommends annual heating and cooling demands to be less than 15 kWh/m 2 and the total specific heat load as less than 10 W/m 2 [21][22][23][24][25][26][27]. In addition, various researches have been carried out to improve the external insulation method in terms of determining the optimal insulation material thickness in order to secure the insulation performance considering the characteristics of the construction industry of various countries, their regional conditions and climatic conditions [28][29][30][31][32][33][34].…”

Section: Research Background and Purposementioning

confidence: 99%

Simulation Model for Productivity Analysis of External Insulated Precast Concrete Wall System

Baik

Kim

Lee³

et al. 2018

Sustainability

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External Insulation Finishing System (EIFS) is recognized as a suitable method for attaining energy efficiency of buildings. However, conventional EIFS is not actively applied to building construction due to additional time and cost compared with interior insulation method. Therefore, as an alternative that can contribute to active utilization of the external insulation system, this study proposes an External Insulated Precast Concrete (PC) Wall System and its simulation for performing productivity analysis. Results of this study are as follows: (1) an external insulated PC-Wall system is developed of which its insulation performance is above 40% higher than that of the conventional EIFS; (2) performance of the developed system satisfied American Standards for Testing of Materials (ASTM) and American Architectural Manufacturers Association (AAMA) standards; (3) applicability of the developed system is verified via test-bed with construction time lapsing about 40 min for each PC-Wall; and (4) CYCLONE modeling methodology is employed to perform productivity analysis of the developed system compared with conventional EIFS.

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“…There have been several experimental works for the assessment of the improvement of the thermal performance of building envelopes with prefabricated systems in timber [46], hemp [47] and lightweight concrete [48].…”

Section: Introductionmentioning

confidence: 99%

Plug and Play Modular Façade Construction System for Renovation for Residential Buildings

et al. 2021

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The present paper focuses on the architectural and constructional features required to ensure that building envelope renovation are safe, functional, and adaptable to the building stock, with particular focus on “plug and play” modular facade construction systems. It presents the design of one such system and how it addresses these issues. The outcome of early-stage functional test with a full-scale mock-up system, as well as its applicability to a real construction project is presented. It is found crucial to obtain high quality information about the status of the existing façade with the use of modern technologies such as topographic surveys or 3D scans and point cloud. Detailed design processes are required to ensure the compatibility of manufacture and installation tolerances, along with anchor systems that deliver flexibility for adjustment, and construction processes adapting standard installation methods to the architectural particularities of each case that may hinder its use or require some modification in each situation. This prefabricated plug and play modular system has been tested by reproducing the holistic methodology and new technologies in the market by means of real demonstrators. When compared to more conventional construction methods, this system achieves savings in a real case of 50% (time), 30% (materials) and 25% (waste), thus achieving significant economic savings.

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Experimental Thermal Performance Assessment of a Prefabricated External Insulation System for Building Retrofitting

Cited by 24 publications

References 4 publications

Walling Thermal Properties Influenced by Heat-Stressed Elements in External Corner Area

Walling Thermal Properties Influenced by Heat-Stressed Elements in External Corner Area

Simulation Model for Productivity Analysis of External Insulated Precast Concrete Wall System

Plug and Play Modular Façade Construction System for Renovation for Residential Buildings

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