Diffusion of Water Vapour through the Damaged Light Weight Wooden Wall

Abstract:

The article is focused on the study of the water vapour diffusion through the vapour retarder at its varying percentages of damage. Two different kinds of foils are used as a vapour retarder. This experiment points to the actual value of the diffusion values of building materials contrary to the values obtained from the tests according to ČSN EN ISO 12572. In these tests the building material is exposed to various boundary conditions and its parameters are monitored. The final value is the result of approximation of different values, which in the real installation may not correspond to the boundary conditions in a building.

• Periodical: Applied Mechanics and Materials (Volume 824)
• Pages: 571-578
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.824.571
• Online since: January 2016
• Authors: Martina Uvizlová, Tereza Bečkovská, Lucie Vacková, Vladimír Tichomirov
• Keywords: Boundary Conditions, Damaged Light Weight Wooden Wall, Vapour Retarder, Water Vapour Diffusion

References

[1] HAM and mould growth analysis of a wooden wall; Fedorik F., Illikainen K., International Journal of Sustainable Built Environment (2013), pp.19-26.

DOI: 10.1016/j.ijsbe.2013.09.002

[2] Towards modelling of decay risk of wooden materials; Viitanen H., Toratti T., Makkonen L., Peuhkuri R., Ojanen T., Ruokolainen L., Räisänen J., European Journal of Wood and Wood Products 68, 3 (2010), pp.303-313.

DOI: 10.1007/s00107-010-0450-x

[3] BRESET - Remote Sensing Technology for Building Physics Research of Structures; Bečkovský, D., Vajkay, F., Trans Tech Publications, Switzerland (2014), pp.575-578.

DOI: 10.4028/www.scientific.net/amr.899.575

[4] Experimental data set for validation of heat, air and moisture transport models of building envelopes; Desta T. Z.; Langmans J., Roels S., Building and Environment 46 (2011), pp.1038-1046.

DOI: 10.1016/j.buildenv.2010.11.002

[5] The transition of the water steam through the composition of the diffusive closed circumferential wall of the wooden house with the proper and improper realization of vapor barrier; Uvizlová M., Bečkovská T, Advanced Materials Research Vol. 899 (2014).

DOI: 10.4028/www.scientific.net/amr.899.446

[6] Use of microwave radiation in building industry through application of wood element drying; Novotný, M.; Šuhajda, K.; Sobotka, J.; Gintar, J.; Šuhajdová, E.; Mátl, M., Wood research (3/2014), pp.389-400.

DOI: 10.4028/www.scientific.net/amr.1041.297

[7] ČSN EN ISO 12572 Hygrothermal performance of building materials and products – Determination of water vapour transmission properties, (July 2002), Praha: Český normalizační institute, (2002).

[8] Moisture transport through perforated vapour retarder; Slanina, P., Šilarová, Š., Building and Environment 44 (2009), pp.1617-1626.

DOI: 10.1016/j.buildenv.2008.10.006

[9] Information on http: /www. isover. cz.

[10] Information on https: /www. dek. cz.