Abstract
Two series of cup tests are carried out. The first series is performed on spruce specimens having moisture transport in either radial direction (R-direction) or in tangential direction (T-direction). The T-direction tests are made as wet cup tests having 93 %RH inside the cups, while the R-direction tests are made as dry cup tests having 33 %RH in the cups. The RH in the outside climate is 60 % for both R- and T-direction. The temperature during the tests is 23 degree C.
The second cup test series is performed on the same spruce specimens and at the same climatic conditions as in the first series, but now with one layer of paint (60 g/m^2) on one surface of the wood specimens. The results show that the RH level significantly influences the water vapour resistance of the paint. For wet cup tests a water vapour resistance of the paint of 6.5•10^8 Pa•m^2•s/kg in average is found. In contrast, the permeability of the specimens are not reduced by the paint for the dry cup tests.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 7th Symposium on Building Physics in the Nordic Countries |
| Volume | Volume 1 |
| Publisher | The Icelandic Building Research Institute, Reykjavik, Iceland |
| Publication date | 2005 |
| Pages | 188-194 |
| ISBN (Print) | 9979-9174-4-X |
| Publication status | Published - 2005 |
| Event | 7th Nordic Symposium on Building Physics - Reykjavik, Iceland Duration: 13 Jun 2005 → 15 Jun 2005 Conference number: 7 http://web.byv.kth.se/bphys/reykjavik/ |
Conference
| Conference | 7th Nordic Symposium on Building Physics |
|---|---|
| Number | 7 |
| Country/Territory | Iceland |
| City | Reykjavik |
| Period | 13/06/2005 → 15/06/2005 |
| Internet address |