EN ISO 13788:2001
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Hygrothermal performance of building components and building elements - Internal surface temperature to avoid critical surface humidity and interstitial condensation - Calculation methods (ISO 13788:2001)
01-03-2003
01-07-2001
This standard gives calculation methods for: a) The internal surface temperature of a building component or building element below which mould growth is likely, given the internal temperature and relative humidity - the method can also be used to assess the risk of other surface condensation problems.b) The assessment of the risk of interstitial condensation due to water vapour diffusion. The method used assumes built-in water has dried out and does not take account of a number of important physical phenomena including:- the dependence of thermal conductivity on moisture content; - the release and absorption of latent heat;- the variation of material properties with moisture content;- capillary suction and liquid moisture transfer within materials; - air movement through cracks or within air spaces;- the hygroscopic moisture capacity of materials.Consequently the method is applicable only to structures where these effects are negligible.
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