Lightweight composite timber façade wall with improved thermal response bElektronski vir
Arkar, Ciril (Author), Domjan, Suzana (Author), Medved, Sašo (Author)

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For the construction of modern energy-efficient buildings, lightweight construction is becoming very popular among designers. EU legislation encourages such design, especially if wood, as a sustainable material, is used. However, lightweight building envelope construction, in general, exhibits poor dynamic thermal properties, which are particularly pronounced in prefabricated metal walls and thin wooden or composite building panels, such as door fillers or opaque parts (parapets) of prefabricated walls with the glazing of the skeleton-built buildings. The aim of this research was the development of a composite timber façade wall, which will not exceed the thickness of building elements, such as doors and windows, and will meet the requirements of energy efficiency and have improved dynamic thermal properties. The composite timber building element with a thickness of 68 mm, which includes two layers of advanced technologies: vacuum insulation panel (VIP) and phase change material (PCM), was developed and optimized. The optimization included a parametric study on VIP and PCM panels' position in the thin, lightweight building wall. The research has shown that dynamic thermal properties comparable to the heavyweight building envelope constructions (time lag of the heat wave up to 12 h) can be achieved; moreover, the thermal transmittance is considerably reduced.

Keywords:lightweight building envelope, composite timber wall, vacuum insulation panel, sustainable buildings, phase change material
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Number of pages:325-332
COBISS.SI-ID:15863579 Link is opened in a new window
License:CC BY-NC-ND 4.0
This work is available under this license: Creative Commons Attribution Non-Commercial No Derivatives 4.0 International
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Record is a part of a journal

Title:Sustainable Cities and Society
COBISS.SI-ID:16177461 This link opens in a new window

Document is financed by a project

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:P2-0223
Name:Prenos toplote in snovi

Funder:Drugi - Drug financer ali več financerjev
Funding Programme:European Regional Development Fund, Research and Development Programmes (TRL 3-6), Programme: ‘Sustainable and innovative construction of smart buildings – TIGR4smart’ (C3330-16-529003).
Project no.:

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