Development and Performance Assessment of Prefabricated Insulation Elements for Deep Energy Renovation of Apartment Buildings
TLDR
In this paper, a methodology and the results of analysis of choices of realizable sets of timber frame prefabricated insulation elements for major renovation of apartment buildings were presented, and thereupon their performance, installation eligibility, and concurrent cost levels were compared.Abstract:
A need for the refurbishment and renewal of the existing building stock has been in focus for many decades, principally because of excessive global energy consumption and pollution. This paper presents a methodology and the results of analysis of choices of realizable sets of timber frame prefabricated insulation elements for major renovation of apartment buildings. Numerous combinations of elements with different characteristics were analyzed by applying measurements, interviews, and building performance simulation software, and thereupon their performance, installation eligibility, and concurrent cost levels were compared. Mineral wool board with a special wind barrier facing was found to be the best material as a wind barrier from the perspective of hygrothermal performance. An air and vapor barrier should have sufficient vapor permeability to allow dry-out of constructional moisture. It is possible to renovate apartment buildings to meet the nZEB energy performance requirements and their moisture safety can be guaranteed without paying high relative difference cost. Calculations showed that the global cost was lower for solutions with some mold growth risk. Great care is needed when decreasing costs without simultaneous hygrothermal analyses. The facade cladding was found to have the highest influence on the initial cost of the prefabricated insulation element.read more
Citations
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Impact of built-in moisture on the design of hygrothermally safe cross-laminated timber external walls: A stochastic approach
TL;DR: In this article , the authors set critical limit values for CLT external wall design in terms of their initial moisture content (built-in moisture) and dry-out capacity (vapour resistance of wall layers) using a stochastic approach.
References
More filters
Journal ArticleDOI
World Map of the Köppen-Geiger climate classification updated
TL;DR: A new digital Koppen-Geiger world map on climate classification, valid for the second half of the 20 th century, based on recent data sets from the Climatic Research Unit of the University of East Anglia and the Global Precipitation Climatology Centre at the German Weather Service.
Journal ArticleDOI
A mathematical model of mould growth on wooden material
Antti Hukka,Hannu Viitanen +1 more
TL;DR: In this article, a mathematical model for the simulation of mould fungi growth on wooden material is presented, based on previous regression models for mould growth on sapwood of pine and spruce.
Journal ArticleDOI
Predicted versus observed heat consumption of a low energy multifamily complex in Switzerland based on long-term experimental data
TL;DR: In this paper, the authors presented an energy analysis of the solar complex of Plan-les-Ouates, a traditional multifamily building with some commercial and administrative areas, which was designed to consume a minimum amount of thermal energy by combining several renewable energy systems (1400 m 2 of solar roof, buried pipe and exhausted air heat exchangers).
Journal ArticleDOI
Deterioration of European apartment buildings
TL;DR: In this article, a total of 349 residential building audits were performed in seven European countries to collect data on the degradation of building elements (architectural and installations) at different states of deterioration.
Mold growth modeling of building structures using sensitivity classes of materials
TL;DR: Ojanen et al. as mentioned in this paper presented the latest findings of mold growth and the modeling of these factors on different materials, such as pine and spruce sapwood, by using the dynamic temperature and relative humidity histories of the subjected material surfaces.