Publication result detail

Modelling of the process of surface moisture saturation of building materials

ŠŤASTNÍK, S.; VALA, J.; KMÍNOVÁ, H.; STEUER, R.

Original Title

Modelling of the process of surface moisture saturation of building materials

English Title

Modelling of the process of surface moisture saturation of building materials

Type

Paper in proceedings (conference paper)

Original Abstract

The reliable numerical modelling of the process of non-stationary heat and moisture propagation in buildings cannot avoid the effect of moisture saturation in applied materials. The experiments show that the radiation thermal flow from the exterior surface of a structure can be even more important than the thermal loss caused by the heat conduction in a wall; the emission from the earth surface into the free space comes into being in two typical domains of wave-lengths. Especially in case of a lowly insolated wall this may result in the saturation of moisture in its cold outer layer, at most in cloudless nights, which starts the surface material degradation. The low thermal accumulation ability of the thin plaster with a large amount of water prepares good living conditions for the population of algae and for the consequent biocorrosion.

English abstract

The reliable numerical modelling of the process of non-stationary heat and moisture propagation in buildings cannot avoid the effect of moisture saturation in applied materials. The experiments show that the radiation thermal flow from the exterior surface of a structure can be even more important than the thermal loss caused by the heat conduction in a wall; the emission from the earth surface into the free space comes into being in two typical domains of wave-lengths. Especially in case of a lowly insolated wall this may result in the saturation of moisture in its cold outer layer, at most in cloudless nights, which starts the surface material degradation. The low thermal accumulation ability of the thin plaster with a large amount of water prepares good living conditions for the population of algae and for the consequent biocorrosion.

Keywords

modelling, surface moisture saturation

Key words in English

modelling, surface moisture saturation

Authors

ŠŤASTNÍK, S.; VALA, J.; KMÍNOVÁ, H.; STEUER, R.

Released

01.10.2006

Publisher

Czech Technical University in Prague

Location

Praha

ISBN

978-80-01-03687-7

Book

Proceedings of the 6th International Seminar Environmentally Compatible Structures and Structural Materials (ECS)

Pages from

92

Pages to

96

Pages count

4

BibTex

@inproceedings{BUT24523,
  author="Stanislav {Šťastník} and Jiří {Vala} and Hana {Kmínová} and Radek {Steuer}",
  title="Modelling of the process of surface moisture saturation of building materials",
  booktitle="Proceedings of the 6th International Seminar Environmentally Compatible Structures and Structural Materials (ECS)",
  year="2006",
  pages="92--96",
  publisher="Czech Technical University in Prague",
  address="Praha",
  isbn="978-80-01-03687-7"
}