%0 Journal Article
%T Rain resistance of fa£żades with fa£żade details: A summary of three field and laboratory studies
%A Lars Olsson
%J Journal of Building Physics
%@ 1744-2583
%D 2018
%R 10.1177/1744259117713265
%X One of the main functions of the exterior walls and fa£żades is to protect the indoor and the sensitive parts of construction from the outdoor climate. Exposure of driving rain is the most prominent moisture source a wall has to resist. Despite this, there is a lack of information on rain resistance. Field measurements on real-life external walls show that recurrent water leakage under driving rain conditions is observed in five out of seven new-built houses in Sweden, including those with ventilated fa£żades. About a 100 commercial laboratory fa£żade tests, mounted by fa£żade suppliers, and targeted laboratory experiments showed that it is almost impossible to achieve fully tight fa£żade solutions, and keep them sealed. Nearly, all test walls with fa£żade details leaked, almost regardless of fa£żade type and sealing efforts. The results from field and laboratory measurements of rain resistance in new buildings in Sweden show that fa£żades are usually not water-tight and also that very small deficiencies can cause substantial amount of water leakage
%K Driving rain
%K rain intrusion
%K water leakage
%K moisture
%K wall
%K window
%K risk assessment
%K measurements
%K EN 12865
%U https://journals.sagepub.com/doi/full/10.1177/1744259117713265