40.20 DIS ballot initiated: 12 weeks Aug 20, 2026
CEN
CEN/TC 254 Flexible sheets for waterproofing
European Norm
91.100.50 Binders. Sealing materials
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.
Legislation related to this standard
Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
IN_DEVELOPMENT
prEN 1931
40.20
DIS ballot initiated: 12 weeks
Aug 20, 2026