Defects of sandwich walls

Thermal protection of spaces contributes to the fact that sandwich walls dominate in heated buildings. Their design requires knowledge regarding the operating principles of sandwich systems. Without knowledge of these principles, numerous mistakes are made. The study describes mistakes encountered m...

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Main Author: Stawiski Bohdan
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:MATEC Web of Conferences
Online Access:https://www.matec-conferences.org/articles/matecconf/pdf/2019/33/matecconf_icsf2019_02008.pdf
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spelling doaj-daf4c9e2ef404f659e1a4b8b7d72b87c2021-03-02T08:57:57ZengEDP SciencesMATEC Web of Conferences2261-236X2019-01-012840200810.1051/matecconf/201928402008matecconf_icsf2019_02008Defects of sandwich wallsStawiski Bohdan0Institute of Building Engineering, Faculty of Environmental Development Engineering and Geodesy, Wrocław University of Environment and Life SciencesThermal protection of spaces contributes to the fact that sandwich walls dominate in heated buildings. Their design requires knowledge regarding the operating principles of sandwich systems. Without knowledge of these principles, numerous mistakes are made. The study describes mistakes encountered made during erection of triple-layer and double-layer walls. The effects of a shortage and excess of connecting pieces in triple-layer walls are presented. For double-layer walls, the necessity of insulation expansion joints is shown using an example. Using the tests, it is proven that the strength of the adhesive layer created during the autumn/winter transitional period is very heavily decreased, even more than 50%, which in connection with over-stiffened anchors leads to very numerous cracks, to the destruction of the external layer of insulation. High diffusion resistance of the external layer of insulation with low diffusion resistance (mineral wool) also leads to the destruction of the adhesive & plaster layer. Furthermore, the considerable significance of the use of good quality reinforcing, anchoring, gluing and painting & plastering materials was emphasized.https://www.matec-conferences.org/articles/matecconf/pdf/2019/33/matecconf_icsf2019_02008.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Stawiski Bohdan
spellingShingle Stawiski Bohdan
Defects of sandwich walls
MATEC Web of Conferences
author_facet Stawiski Bohdan
author_sort Stawiski Bohdan
title Defects of sandwich walls
title_short Defects of sandwich walls
title_full Defects of sandwich walls
title_fullStr Defects of sandwich walls
title_full_unstemmed Defects of sandwich walls
title_sort defects of sandwich walls
publisher EDP Sciences
series MATEC Web of Conferences
issn 2261-236X
publishDate 2019-01-01
description Thermal protection of spaces contributes to the fact that sandwich walls dominate in heated buildings. Their design requires knowledge regarding the operating principles of sandwich systems. Without knowledge of these principles, numerous mistakes are made. The study describes mistakes encountered made during erection of triple-layer and double-layer walls. The effects of a shortage and excess of connecting pieces in triple-layer walls are presented. For double-layer walls, the necessity of insulation expansion joints is shown using an example. Using the tests, it is proven that the strength of the adhesive layer created during the autumn/winter transitional period is very heavily decreased, even more than 50%, which in connection with over-stiffened anchors leads to very numerous cracks, to the destruction of the external layer of insulation. High diffusion resistance of the external layer of insulation with low diffusion resistance (mineral wool) also leads to the destruction of the adhesive & plaster layer. Furthermore, the considerable significance of the use of good quality reinforcing, anchoring, gluing and painting & plastering materials was emphasized.
url https://www.matec-conferences.org/articles/matecconf/pdf/2019/33/matecconf_icsf2019_02008.pdf
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