As an alternative to the conventionally used interior insulation with a vapour barrier, diffusion-open, capillary-active insulation is becoming increasingly popular on the market. Such materials transport moisture back capillary and thus contribute to regulating the moisture balance of a construction. They reduce the risk of moisture-related damage.
To supplement the existing material parameters, a new laboratory test was developed that can be used to analyse the moisture behaviour of capillary-active interior insulation materials more reliably than with the usual measurement methods.
Author: Forschungsinstitut für Wärmeschutz – FIW, Fraunhofer-Institut für Bauphysik – IBP