ABSTRACT
The influence of fiber orientation on thermal and hydric properties of several materials on mineral wool basis with different bulk densities is studied in the paper. The liquid water transport is found to be affected by both the fiber orientation and bulk density in a significant way. Higher density and perpendicular fiber orientation can significantly enhance liquid water transport. The water vapor transport is in all materials so fast that any differences in water vapor diffusion resistance factor cannot be unambiguously identified. The thermal conductivity is found to be influenced only slightly by fiber orientation.
