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      Moisture control design has to respond to all relevant hygrothermal loads

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            Revision notes

            The comments of the reviewers have all been taken into account for the revision.

            the modifications to the original submission are indicated by track changes in the mabuscript sent to the editor.






            Moisture related damage is still a formidable cost factor in the building sector. Besides installation deficiencies, moisture control design failures are the most frequent reasons for moisture problems. Therefore, adequate moisture control analysis has become the key for sustainable buildings. However, by focusing on vapour diffusion only other important moisture loads such as driving rain, construction moisture or air infiltration are mostly neglected. Therefore, international moisture control standards often refer to simulation models for more realistic analysis, leaving many practitioners wondering how to handle these tools. To overcome this dilemma, the updated German moisture control standard has introduced a three-pathway approach for design evaluation: 1 st deemed to satisfy list, 2 nd restricted Glaser calculation and 3 rd fully fledged hygrothermal simulation. The third pathway includes the option to account for small leaks or imperfections in building envelope components. Guidelines in other countries are also embracing similar moisture control approaches which gives hope for more durable and sustainable building design. To reach this aim, moisture control should also become an integral part of the design process instead of a secondary chore.


            Author and article information

            UCL Open: Environment Preprint
            UCL Press
            14 April 2022
            [1 ] Dep. Hygrothermics, Fraunhofer IBP, Fraunhofer Str. 10, 83626 Valley, Germany, Upper Bavaria
            [2 ] College of Sciences and Engineering, University of Tasmania, Locked Bag 1323, Launceston TAS 7250
            Author notes
            Author information

            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.

            : 23 December 2021
            : 5 May 2022
            None None

            Data sharing not applicable to this article as no datasets were generated or analysed during the current study.
            Moisture control design standard; hygrothermal simulation; vapour diffusion calculation; deemed to satisfy; component leaks; ,Built environment,Sustainable development


            Date: 05 May 2022

            Handling Editor: Dr Yasemin D. Aktas

            Editorial decision: Accept. This revised article has been accepted following peer review and it is suitable for publication in UCL Open: Environment.

            2022-05-06 13:21 UTC

            Date: 29 April 2022

            Handling Editor: Dr Yasemin D. Aktas

            The article has been revised, this article remains a preprint article and peer-review has not been completed. 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

            2022-05-06 13:20 UTC

            Many thanks to the Authors for taking the time and addressing the comments suggested. Excellent work. 

            2022-05-05 12:50 UTC
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