Flexible sheets for waterproofing -- Bitumen, plastic and rubber sheets for roof waterproofing -- Determination of water vapour transmission properties (prEN 1931)

Tehnički odbor

HZN/TO 525 Hidroizolacijski materijali i proizvodi za pokrivanje krovova

Završetak komentiranja

12.11.2026.

This document specifies a method for the determination of the water vapour transmission properties of waterproofing sheets. It is applicable to factory made bitumen, plastic and rubber sheets for roof waterproofing, damp proof sheets, damp proof courses, underlays and vapour control layers.