Energy and economic analysis of material and construction solutions for multi-family building external partitions – a case study

The article provides an overview of energy consumption in buildings, particularly residential ones. Key aspects of building design are discussed, such as the selection of construction technologies and materials, which impact the building’s energy efficiency and operational costs. The thermal insulation requirements, regulated by legal provisions, are presented, setting the maximum allowable values for thermal transmittance and the consumption of non-renewable primary energy by the building. The research section includes analyses for a multi-family building designed to be located in Czestochowa, highlighting different variants for external walls, flat roofs, ceilings over unheated basements, as well as window and door joinery, all aimed at achieving optimal energy performance. The conducted analyses considered thermal, moisture, and economic para-meters. For each building partition analysed, three variants were examined, all of which complied with the current Technical Requirements. When selecting materials for the building partitions, factors such as low costs, material availability, and ease of installation were prioritized to minimize errors. Risks related to water vapor condensation were also analysed. The chosen variants, through the selection of materials and construction techniques, allow for achieving high energy efficiency in the building while optimizing construction and operational costs, thereby improving occupant comfort and reducing CO2 emissions.

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Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).