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Rain intrusion rates at façade details - A summary of results from four laboratory studies
RISE - Research Institutes of Sweden, Built Environment, Building Technology. Chalmers University of Technology, Sweden.
2017 (English)In: Energy Procedia, 2017, p. 387-392Conference paper, Published paper (Refereed)
Abstract [en]

More knowledge and realistic data on inward leakage is needed not only to better understand and confirm rain resistance of different facades, but also to carry out reliable theoretical moisture risk assessments of façade details in external walls. This article is an attempt to highlight amounts of expected leakage based on four laboratory studies. The results show that under heavy driving rain conditions, there may be continuous point leakage of significant volumes of water (0,01-0,05 l/min) in small invisible deficiencies, and corresponds to up to 2% of the applied water load. The leakage rate also depends, more or less, on the size, position and geometry of the deficiency, cumulative runoff rates, size of projecting details and surface properties. © 2017 The Authors.

Place, publisher, year, edition, pages
2017. p. 387-392
Keywords [en]
building envelope, Driving rain, EN 12865, rain intrusion, risk assessment, wall, water lekage, window, Mercury (metal), Walls (structural partitions), Windows, Building envelopes, Cumulative runoffs, External walls, Laboratory studies, Leakage rates, Rain
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-33137DOI: 10.1016/j.egypro.2017.09.639Scopus ID: 2-s2.0-85033364738OAI: oai:DiVA.org:ri-33137DiVA, id: diva2:1179092
Conference
11th Nordic Symposium on Building Physics, NSB 2017, 11 June 2017 through 14 June 2017
Available from: 2018-01-31 Created: 2018-01-31 Last updated: 2018-01-31Bibliographically approved

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