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prEN 1931

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

Publication date:   Aug 20, 2026

General information

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

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Scope

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.

Related legislation

Legislation related to this standard

305/2011

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

Legislation 305/2011

Life cycle

PREVIOUSLY

PUBLISHED
EN 1931:2000

PUBLISHED
EN 1931:2000/AC:2001

NOW

IN_DEVELOPMENT
prEN 1931
40.20 DIS ballot initiated: 12 weeks
Aug 20, 2026




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