Capacity of rendering systems to resist rain penetration
Kvande, T., Time, B. and Waldum, A. M.
2002
6th Symposium on Building Physics in the Nordic Countries, Trondheim, Norway, Jun 17
Kvande, T., Time, B. and Waldum, A. M., (2002), "Capacity of rendering systems to resist rain penetration", 6th Symposium on Building Physics in the Nordic Countries, Trondheim, Norway, Jun 17.
| Abstract: |
| INTRODUCTION
In Norway, traditionally different rendering systems are used for building inland and at the coast. Two coat renders are more common for moderate climate while three coat renders are the normal for coastal climate. Due to a "never ending" rainfall autumn 2000 in areas with normally small to moderate amount of driving rain, a lot of damage appeared on buildings in these areas (Oslo area). As a consequence of this type of failures a laboratory testing program has been carried out. The purpose of the tests was to determine the behaviour in resisting rain penetration for different rendering systems. The test was conducted in a driving rain apparatus and two types of exposure were used. Water absorption coefficient, water vapour permeability as well as strength and fresh mortar properties have also been determined. |
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