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      An overview of hydrophobic treatments and their application with Internal Wall Insulation

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      research-article
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            Abstract

            Hydrophobic (or water-repellent) treatments have been proposed to mitigate moisture risks associated with Internal Wall Insulation when applied to solid masonry walls. This can reduce risks associated with moisture accumulation within the structure such as mould growth or the deterioration of joist ends and other embedded timber. However, such treatments slow down drying processes, and therefore may result in a net increase in moisture if the treatment is bypassed by e.g. cracks. Furthermore, such treatments have been linked with damage to external masonry surfaces. Freeze-thaw and salt crystallisation are the two main causes. Hygrothermal simulations may give some indication of risks but techniques to assess surface damage are either simplistic, impractical outside of the research environment, or both.

            Content

            Author and article information

            Journal
            UCL Open: Environment Preprint
            UCL Press
            6 May 2022
            Affiliations
            [1 ] Institute for Environmental Design and Engineering, University College London
            Author notes
            Article
            10.14324/111.444/000149.v1
            b3c6801f-33f4-47df-894c-fbb482d7a237

            This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY) 4.0 https://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, distribution and reproduction in any medium, provided the original author and source are credited.

            Funding
            EPSRC, SPAB, Safeguard Europe Ltd EP/S021671/1

            Data sharing not applicable to this article as no datasets were generated or analysed during the current study.
            Materials technology,Engineering,Architecture
            Water repellent,Solid Wall Insulation,Internal Wall Insulation,Hygrothermal,Energy and climate,Sustainability in architecture and the built environment,Hydrophobic

            Comments

            Date: 10 October 2022

            Handling Editor: Dr Yasemin D. Aktas

            Editorial decision: Request revision. The Handling Editor requested revisions; the article has been returned to the authors to make this revision.

            2022-10-11 09:00 UTC
            +1

            Date: 06 May 2022

            Handling Editor: Dr Yasemin D. Aktas

            This article is a preprint article and has not been peer-reviewed. It is under consideration following submission to UCL Open: Environment for open peer review.

            This article is part of the 1st International Conference on Moisture in Buildings (ICMB21) Special Series

            2022-10-11 08:59 UTC
            +1

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