Timber Housing Production Systems in Brazil

Araújo, Victor Almeida De; Biazzon, João Carlos; Cortez-Barbosa, Juliana; Morales, Elen Aparecida Martines; Gava, Maristela; Garcia, José Nivaldo

doi:10.31926/but.fwiafe.2020.13.62.1.6

Cited by 7 publications

(11 citation statements)

References 17 publications

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“…Timber houses are produced both in more rudimentary artisanal styles and modern modalities stemming from semi-industrialization and industrialization, which are based on partial and complete production of prefabricated wooden parts and elements, respectively. These elements are semi-finished and finished (off-site) in plants to be assembled at the construction site, as theoretically described by (15) and scientifically confirmed by (31).…”

Section: Construction Cost and Its Perspective In Brazilmentioning

confidence: 84%

“…While this study integrated a series of different approaches developed to characterize the timber housing production sector in Brazil, (16,31,39), and dozens of other approaches ascertained a domestic sectoral population of 210 producers, out of which 107 companies were randomly evaluated with a representative sampling rate of 51 % and a margin of error of 6,65 %. This value is close to the ideal level of 5 % prescribed by (41).…”

Section: Statistical Analysis Of the Surveyed Samplementioning

confidence: 99%

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Costs of Timber Houses in Different Standards and Productions in Brazil

Araújo

Araujo²,

Vasconcelos

et al. 2022

Ing.

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Context: Timber construction is not among the most popular options due to cultural issues in Brazil. Timber housing standards and costs remain uncertain subjects, and this study seeks to investigate these secular gaps.Method: Basic unitary costs for different finishing standards and production types were measured through face-to-face interviews led by a semi-structured questionnaire. A margin of error was used to validate all results. Entrepreneurs from six Brazilian states were randomly interviewed to obtain a representative sample.Results: The sampling exceeded 50% of the sector population and provided significant outcomes. More than 40% of timber housing techniques showed competitive costs in comparison with masonry. There are feasible alternatives of timber housing for the different scenarios analyzed.Conclusions: Timber houses are economically viable in Brazil, even compared to traditional examples built via masonry. Attractive costs for all social classes symbolize a strong factor in conquering housing markets.

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Section: Construction Cost and Its Perspective In Brazilmentioning

confidence: 84%

Section: Statistical Analysis Of the Surveyed Samplementioning

confidence: 99%

Costs of Timber Houses in Different Standards and Productions in Brazil

Araújo

Araujo²,

Vasconcelos

et al. 2022

Ing.

Self Cite

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“…Using the survey strategy performed by De Araujo et al (2018a;2018b;2018c;2019a;2019b;2020a;2020b;2020c), the methodological route included the application of face-to-face interviews driven by a semi-structured questionnaire for dozens of major topics, including this unprecedented approach to identify execution time of timber housing construction techniques.…”

Section: Interviews About Execution Time For Timber Construction Tech...mentioning

confidence: 99%

Can Timber Houses Be Productively Faster to Build Than Other Buildings?

et al. 2022

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To identify the time spent with the different construction techniques of timber houses, this study evaluates the execution time of different models available in Brazil. Using face-to-face interviews, semi-structured questionnaires were randomly applied to collect average time according to distinct production methods. The most efficient techniques were: ‘clapboard and wainscot’, ‘post-and-beam’, and ‘log-home’ using artisanal production; ‘clapboard and wainscot’, ‘stick framing with masonry’, and ‘post-and-beam’ in semi-industrial process; and, ‘modular for building sites’, ‘modular in cross-laminated timber’ and ‘modular woodframe’ in industrial production. Different industrial developers were not as agile as artisanal competitors due to production obstacles in customized projects. Timber construction offers lower execution time than masonry, representing an agile form to build a versatile sustainable dwelling.

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“…Approximately 20% of buildings in Chile are wooden, amounting to nearly 1.3 million homes-a significant market share [2]. In contrast, Brazil has around 6.7% of buildings made of wood, a smaller market share but representing over 3.8 million wooden houses due to its larger volume [3]. Prefabricated wood construction (wall and modules) is a method for fabricating building components in controlled factories and assembling them on-site [4].…”

Section: Introductionmentioning

confidence: 99%

Prioritizing Indicators for Material Selection in Prefabricated Wooden Construction

Cabral,

Blanchet

2023

Buildings

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Material selection in buildings profoundly affects project success, encompassing durability, maintenance, customer satisfaction, production systems, lifecycle, usage, environment, and costs. Yet, there is a need for further research on indicators for choosing materials in prefabricated buildings. Therefore, this study’s main objective was to identify the indicators (criteria and sub-criteria) for selecting materials for prefabricated wooden construction and, subsequently, categorize these criteria and sub-criteria based on the perspective of industry professionals. To achieve this goal, three phases were carried out. First, a literature review was conducted to identify potential criteria for choosing structural and envelope materials in wooden prefabricated buildings. Second, a pilot survey was conducted in Canada and the United States to classify the priority order of the criteria obtained from the literature based on professionals’ opinions. Finally, Monte Carlo simulations were conducted with different iterations (1000, 10,000, and 100,000) using the data obtained from the previous phase to improve decision-making and classification processes. For the indicators to select materials, the literature review identified seven main criteria: performance properties, green materials, energy efficiency, circular economy, site conditions and material logistics, standards, and social impact. These criteria contained a total of 25 sub-criteria. The pilot survey data analysis demonstrated that the performance properties, site conditions and material logistics, and social impact criteria were consistently prioritized. The critical sub-criteria identified were fire resistance, watertightness, local availability, occupant health, and safety and protection. For the Monte Calo simulations, the predictions aligned with the pilot study, enhancing the robustness of the results.

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Timber Housing Production Systems in Brazil

Cited by 7 publications

References 17 publications

Costs of Timber Houses in Different Standards and Productions in Brazil

Costs of Timber Houses in Different Standards and Productions in Brazil

Can Timber Houses Be Productively Faster to Build Than Other Buildings?

Prioritizing Indicators for Material Selection in Prefabricated Wooden Construction

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