ISO 21129:2007
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ISO 21129:2007
35674

Abstract

 Preview

ISO 21129:2007 specifies a box method for determining the water-vapour permeability of building materials. The box method is used primarily to measure the water-vapour permeance of materials that have low water-vapour resistance, in which the influence of the surface-humidity transmission-resistance cannot be ignored.


General information 

  •  :  Published
     : 2007-07
  •  : 1
     : 11
  •  : ISO/TC 163/SC 1 Test and measurement methods
  •  :
    91.120.10 Thermal insulation of buildings

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