Share

THE CHOICE OF VAPOUR RESISTIVITY VALUES IN CALCULATIONS OF CONDENSATION RISK.

Author(s) : LETHERMAN K. M.

Type of article: Article

Summary

FOR CALCULATIONS TO PREDICT THE CONDENSATION RISK IN BUILDING STRUCTURES IT IS NECESSARY TO ASSUME SUITABLE VALUES OF THE THERMAL AND VAPOUR RESISTIVITIES OF THE MATERIALS. FOR MANY MATERIALS, REFERENCE SOURCES QUOTE VALUES OF VAPOUR RESISTIVITY, IN PARTICULAR, AS A RANGE RATHER THAN A SINGLE FIGURE. THE PAPER SHOWS THAT THE ASSUMPTION OF MEAN VALUES MAY BE INAPPROPRIATE AND THAT IT IS BETTER TO USE EXTREME VALUES FROM THE RANGES. SIMPLE RULES ARE STATED TO GUIDE THE CHOICE OF VALUES FROM THE RANGE. AN EXAMPLE IS GIVEN, TO DEMONSTRATE THE APPLICATION OF THE RULES.

Details

  • Original title: THE CHOICE OF VAPOUR RESISTIVITY VALUES IN CALCULATIONS OF CONDENSATION RISK.
  • Record ID : 1987-0648
  • Languages: English
  • Source: Build. Serv. Eng. Res. Technol. - vol. 7 - n. 1
  • Publication date: 1986
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles in this issue (3)
See the source

Indexing