CEN/TC 254/WG 4 - Water vapour transmission, water tightness and root resistance

CEN/TC 254/WG 4 is a Working Group within the European Committee for Standardization (CEN). It is named "Water vapour transmission, water tightness and root resistance" and is responsible for: To develop general test methods applicable to bituminous and synthetic sheets for waterproofing in respect of watertightness, water vapour transmission and root resistance. This committee has published 3 standards.

CEN/TC 254/WG 4 develops CEN standards. The scope of work includes: To develop general test methods applicable to bituminous and synthetic sheets for waterproofing in respect of watertightness, water vapour transmission and root resistance. Currently, there are 3 published standards from this working group.

The European Committee for Standardization (CEN) is a public standards organization that brings together the national standardization bodies of 34 European countries. CEN provides a platform for developing European Standards (ENs) and other technical documents in relation to various products, materials, services, and processes, supporting the European Single Market.

A Working Group in CEN is a specialized group responsible for developing standards or technical work within a defined scope. These bodies bring together international experts to create consensus-based standards that support global trade, safety, and interoperability.