CEN/TC 254/WG 16 - Extrapolation rules for resistance to root penetration
The scope of this WG is the development of a document (CEN/TS) on extrapolation rules for resistance root penetration of flexible sheets for waterproofing, drafting further on the work N2021.
Extrapolation rules for resistance to root penetration
The scope of this WG is the development of a document (CEN/TS) on extrapolation rules for resistance root penetration of flexible sheets for waterproofing, drafting further on the work N2021.
General Information
Frequently Asked Questions
CEN/TC 254/WG 16 is a Working Group within the European Committee for Standardization (CEN). It is named "Extrapolation rules for resistance to root penetration" and is responsible for: The scope of this WG is the development of a document (CEN/TS) on extrapolation rules for resistance root penetration of flexible sheets for waterproofing, drafting further on the work N2021. This committee has published 1 standards.
CEN/TC 254/WG 16 develops CEN standards in the area of Information technology. The scope of work includes: The scope of this WG is the development of a document (CEN/TS) on extrapolation rules for resistance root penetration of flexible sheets for waterproofing, drafting further on the work N2021. Currently, there are 1 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.
Experience with testing in accordance with EN 13948 has shown that flexible sheets for waterproofing with different thicknesses, different colours, different formulations, different surface finishing, and different internal fabrics, amongst others, have passed the test successfully.
This document expresses the extrapolation rules of the results of root resistance testing in accordance with EN 13948 for roof waterproofing sheets manufactured in accordance with EN 13707:2004+A2:2009, and EN 13956:2012.
Experience with testing in accordance to EN 13948 has shown that the main critical points are represented by the joints. If joints are done in a proper way, it will avoid the penetration of roots during the test.
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