Published June 15, 2008
| Version v1
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Moisture Transport in Flat Roofs with Perforated Vapour Barriers
Authors/Creators
- 1. (Czech Technical University in Prague, Faculty of Civil Engineering)
Description
In European Standards EN 15026 and EN ISO 13788 the moisture transport in a building envelope is assumed only as one dimensional transport. In fact three-dimensional moisture transport is occurred due to layer perforation or building details. The paper is focused on cases of flat roofs when a vapour barrier is perforated. The sd-value measurement of different vapour barriers with different degree of perforation has been done by the Wet-Cup method. The results of the measurement bring a new view on a design of flat roofs. At the end of the paper we discussed new recommendations for architects how to design more efficiently flat roofs.
Notes
Presenters:
name: Petr Slanina
affiliation: (Czech Technical University in Prague, Faculty of Civil Engineering)
email: petr.slanina@fsv.cvut.cz