oSIST prEN 1849-1:2026
(Main)Flexible sheets for waterproofing - Determination of thickness and mass per unit area - Part 1: Bitumen sheets for roof waterproofing
- Abstract
This document specifies a method for the determination of thickness and mass per unit area of bitumen sheets for roof waterproofing. The measurement of thickness is appropriate for most bitumen sheets including sheets with a factory applied mineral finish.
The determination of thickness is not applicable to sheets with pronounced surface texture or to sheets with a substantial fibrous backing. Where it is required to characterize these products, mass per unit area should be used instead.
The determination of mass per unit area serves to verify the value stated by the manufacturer for information and is not applicable to perforated materials.
- Status
- Not Published
- Public Enquiry End Date
- 30-Dec-2026
- Technical Committee
- VLA - Water proofing
- Current Stage
- 4020 - Public enquire (PE) (Adopted Project)
- Start Date
- 02-Nov-2026
- Due Date
- 22-Mar-2027
Relations
- Effective Date
- 12-Nov-2025
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Frequently Asked Questions
oSIST prEN 1849-1:2026 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Flexible sheets for waterproofing - Determination of thickness and mass per unit area - Part 1: Bitumen sheets for roof waterproofing". This standard covers: This document specifies a method for the determination of thickness and mass per unit area of bitumen sheets for roof waterproofing. The measurement of thickness is appropriate for most bitumen sheets including sheets with a factory applied mineral finish. The determination of thickness is not applicable to sheets with pronounced surface texture or to sheets with a substantial fibrous backing. Where it is required to characterize these products, mass per unit area should be used instead. The determination of mass per unit area serves to verify the value stated by the manufacturer for information and is not applicable to perforated materials.
This document specifies a method for the determination of thickness and mass per unit area of bitumen sheets for roof waterproofing. The measurement of thickness is appropriate for most bitumen sheets including sheets with a factory applied mineral finish. The determination of thickness is not applicable to sheets with pronounced surface texture or to sheets with a substantial fibrous backing. Where it is required to characterize these products, mass per unit area should be used instead. The determination of mass per unit area serves to verify the value stated by the manufacturer for information and is not applicable to perforated materials.
oSIST prEN 1849-1:2026 is classified under the following ICS (International Classification for Standards) categories: 91.060.20 - Roofs; 91.100.50 - Binders. Sealing materials. The ICS classification helps identify the subject area and facilitates finding related standards.
oSIST prEN 1849-1:2026 has the following relationships with other standards: It is inter standard links to SIST EN 1849-1:2000. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
oSIST prEN 1849-1:2026 is associated with the following European legislation: EU Directives/Regulations: 305/2011. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
oSIST prEN 1849-1:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2026
Hidroizolacijski trakovi - Določanje debeline in mase na enoto površine - 1. del:
Bitumenski trakovi za tesnjenje streh
Flexible sheets for waterproofing - Determination of thickness and mass per unit area -
Part 1: Bitumen sheets for roof waterproofing
Abdichtungsbahnen - Bestimmung der Dicke und der flächenbezogenen Masse - Teil 1:
Bitumenbahnen für Dachabdichtungen
Feuilles souples d'étanchéité - Détermination de l'épaisseur et de la masse surfacique -
Partie 1 : Feuilles d'étanchéité de toiture bitumineuses
Ta slovenski standard je istoveten z: prEN 1849-1
ICS:
91.060.20 Strehe Roofs
91.100.50 Veziva. Tesnilni materiali Binders. Sealing materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2026
ICS 91.100.50 Will supersede EN 1849-1:1999
English Version
Flexible sheets for waterproofing - Determination of
thickness and mass per unit area - Part 1: Bitumen sheets
for roof waterproofing
Feuilles souples d'étanchéité - Détermination de Abdichtungsbahnen - Bestimmung der Dicke und der
l'épaisseur et de la masse surfacique - Partie 1 : flächenbezogenen Masse - Teil 1: Bitumenbahnen für
Feuilles d'étanchéité de toiture bitumineuses Dachabdichtungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 254.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark,
Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye
and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
C O M I T É E U R O P É E N D E N O R M A L I S A T I O N
E U R O P Ä I S C H E S K O M I T E E F Ü R N O R M U N G
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1849-1:2026 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Determination of thickness . 5
4.1 Principle . 5
4.2 Apparatus . 5
4.3 Sampling and preparation of test specimens . 5
4.3.1 Sampling . 5
4.3.2 Preparation of test specimens . 5
4.3.3 Conditioning of test specimens . 5
4.4 Procedure . 5
4.5 Expression of results . 5
4.5.1 Calculation . 5
4.5.2 Precision . 5
5 Determination of mass per unit area . 6
5.1 Principle . 6
5.2 Apparatus . 6
5.3 Sampling and preparation of test specimens . 6
5.3.1 Sampling . 6
5.3.2 Preparation of test specimens . 6
5.3.3 Conditioning of test specimens . 6
5.4 Procedure . 7
5.5 Expression of results . 7
5.5.1 Calculation .
...