Investment Costs of the Building Envelope Reconstructions

Výskala, Miloslav

doi:10.1515/jbe-2014-0007

Cited by 1 publication

(2 citation statements)

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“…The effects of retrofitted building envelopes have been presented in various studies with different perspectives [20][21][22][23][24][25][26]. Studies based on the effects of building envelope parameters such as building dimensions, building locations, external walls, external roofs, and shading devices in tropical climates have revealed diverse optimal envelope compositions that can provide thermal comfort to the occupant [20].…”

Section: Literature Reviewmentioning

confidence: 99%

“…From the environmental perspective, suitable materials can lower environmental impacts from energy usage by 20-30%, the global warming impact by 40%, and acidification potential by 50-75% [25]. From the economic point of view, the cost of investment and the desired thermal characteristics of the retrofitted building envelope need to be at an optimal point for the project to be attractive for investment [26].…”

Section: Literature Reviewmentioning

confidence: 99%

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Energy and Economic Analysis of Tropical Building Envelope Material in Compliance with Thailand’s Building Energy Code

Chiradeja

Ngaopitakkul

2019

Sustainability

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The building envelope has a direct impact on the overall energy consumption of a building. Thus, an improvement in the building envelope using energy-efficient material can yield the desired energy performance. This study is based on the materials and compositions used in building envelopes in compliance with the building energy code of Thailand. The building under study is an educational building located in Bangkok, Thailand. Both the energy and the economic aspects of retrofitted building envelopes are discussed in this study. The energy performance was evaluated by calculating the thermal transfer value and whole building energy consumption using the building energy code (BEC) software. The simulation was done under the assumption that the building envelope in the case study building was retrofitted with different materials and compositions. The study determines the feasibility of retrofitting buildings using energy-efficient material by utilizing the discounted payback period and internal rate of return (IRR) as indicators. The results show that retrofitted building envelopes in every case can reduce the whole building energy consumption. In the best envelope configuration, energy consumption can decrease by 65%. In addition, the economic potential is also high, with an IRR value of approximately 15% and a payback period of 23 less than nine years. These finding indicate that a building envelope made with energy-efficient material can achieve good results for both energy performance and economic feasibility.

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