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Water vapor transmission properties

Measurement Water vapor resistance factor, diffusion equivalent air layer thickness
Standards DIN EN ISO 12572, DIN EN 12086, DIN EN ISO 7783-2, DIN 1931, DIN 53122-1, ASTM E 96-95
Measurement object Mineral materials like brick, lime stone, sandstone, concrete, plasters and renders, insulation materials, flexible sheets for waterproofing, roof underlays, etc.

Technical data

Sample size, circular Diameter 90 mm, 100 mm, 200 mm
Sample size, rectangular (L × W) 100 × 100 mm
200 × 100 mm
180 × 130 mm
Special dimensions possible
Test condition Dry cup: +23 °C, 0 to 50 % r.h.
Wet cup: +23 °C, 50 to 93 % r.h.
Special conditions available

Special features

Accredited by DAkkS
The laboratory has a flexible accreditation according to DIN EN ISO/IEC 17025
Test laboratory moisture, mortar, radiation, emmissions
  Test reports can be issued



More information

The water vapor transmission of building materials is one of the most important characteristics to estimate moisture behavior of constructions. In particular prevention of condensation and the drying of constructions are controlled by the water vapor transmission properties.