SIST EN 1931:2001
(Main)Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Determination of water vapour transmission properties
Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Determination of water vapour transmission properties
This European Standard specifies a method for the determination of the water vapour transmission properties and for the calculation of the density of moisture flow rate g and of the moisture resistance factor µ of waterproofing sheets. It is applicable to factory made bitumen, plastic and rubber sheets for roof waterproofing.
Abdichtungsbahnen - Bitumen-, Kunststoff-, und Elastomerbahnen für Dachabdichtungen - Bestimmung der Wasserdampfdurchlässigkeit
Diese Europäische Norm gilt für ein Verfahren zur Bestimmung der Wasserdampfdurchlässigkeit und zur Berechnung der Feuchtestromdichte g und der Wasserdampf-Diffusionswiderstandszahl µ von Dachabdichtungsbahnen. Diese Norm gilt für Bitumenbahnen, Kunststoffbahnen und Elastomerbahnen.
Feuilles souples d'étanchéité - Feuilles d'étanchéité de toiture bitumineuses, plastiques et élastomeres - Détermination des propriétés de transmission de la vapeur d'eau
Cette Norme Européenne s'applique aux feuilles d'étanchéité bitumineuses, plastiques et élastomères et spécifie des procédures pour la détermination de la densité de flux d'humidité g et pour le calcul du facteur de résistance à l'humidité µ des feuilles d'étanchéité.
Hidroizolacijski trakovi - Bitumenski, polimerni in elastomerni trakovi za tesnjenje streh - Določevanje lastnosti pri prehodu vodne pare
General Information
- Status
- Published
- Publication Date
- 30-Nov-2001
- Technical Committee
- VLA - Water proofing
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Dec-2001
- Due Date
- 01-Dec-2001
- Completion Date
- 01-Dec-2001
- Directive
- 89/106/EEC - Construction products
Relations
- Effective Date
- 22-Dec-2008
Overview
SIST EN 1931:2001 is a European Standard developed by CEN that outlines the method for determining the water vapour transmission properties of flexible waterproofing sheets. Specifically, it covers factory-made bitumen, plastic, and rubber sheets used in roof waterproofing applications. The standard enables the accurate measurement and calculation of key parameters such as the moisture flow rate and moisture resistance factor, which are critical for assessing the effectiveness of waterproofing materials in resisting water vapour penetration.
Key Topics
Water Vapour Transmission Properties
SIST EN 1931:2001 provides a standardized test method to evaluate how much water vapour can pass through roofing sheets. This helps ensure materials meet specific performance criteria for vapour resistance.Moisture Flow Rate (g)
The standard defines the procedures for calculating the density of moisture flow rate, an essential value indicating the quantity of water vapour transmitted through the material in a given time.Moisture Resistance Factor (µ)
The moisture resistance factor quantifies the waterproofing sheet’s ability to resist water vapour diffusion compared to still air. A higher µ value indicates better resistance, crucial for effective roof waterproofing.Material Scope
This standard applies to flexible sheets made from bitumen, plastic, and rubber specifically designed for roofing waterproofing, ensuring consistent quality and performance across different material types.
Applications
Roof Waterproofing Design
SIST EN 1931:2001 assists architects, engineers, and construction professionals in selecting suitable waterproofing sheets that meet vapour transmission requirements for roof assemblies.Quality Control and Product Development
Manufacturers use the standard to test and certify their products, guaranteeing consistent water vapour resistance that complies with European regulations.Building Regulations Compliance
Products tested according to SIST EN 1931:2001 contribute to meeting building codes related to moisture control and roofing durability.Moisture Management in Buildings
By understanding water vapour transmission, this standard supports better building envelope design to prevent condensation and moisture damage in roof structures.
Related Standards
EN 13967 – Flexible sheets for waterproofing – Plastic and rubber sheets for waterproofing – Definitions and characteristics. Complements EN 1931 by providing general product requirements.
EN 13707 – Bitumen damp proof sheets – Definitions and characteristics. Offers guidance specific to bituminous sheets often tested with EN 1931.
EN ISO 12572 – Building materials – Determination of water vapour transmission properties – Cup method. A related international standard describing alternative vapour transmission test methods.
EN 12691 – Bitumen waterproofing sheets – Determination of resistance to tearing. Addresses mechanical properties important alongside vapour transmission.
Keywords: EN 1931, water vapour transmission, moisture resistance factor, moisture flow rate, flexible waterproofing sheets, bitumen sheets, plastic roofing sheets, rubber roofing sheets, roof waterproofing standards, CEN standards, vapour diffusion, waterproofing materials testing.
Frequently Asked Questions
SIST EN 1931:2001 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Determination of water vapour transmission properties". This standard covers: This European Standard specifies a method for the determination of the water vapour transmission properties and for the calculation of the density of moisture flow rate g and of the moisture resistance factor µ of waterproofing sheets. It is applicable to factory made bitumen, plastic and rubber sheets for roof waterproofing.
This European Standard specifies a method for the determination of the water vapour transmission properties and for the calculation of the density of moisture flow rate g and of the moisture resistance factor µ of waterproofing sheets. It is applicable to factory made bitumen, plastic and rubber sheets for roof waterproofing.
SIST EN 1931:2001 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.
SIST EN 1931:2001 has the following relationships with other standards: It is inter standard links to SIST EN 1931:2001/AC:2001. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 1931:2001 is associated with the following European legislation: EU Directives/Regulations: 305/2011, 89/106/EEC; Standardization Mandates: M/102. 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.
SIST EN 1931:2001 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)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Abdichtungsbahnen - Bitumen-, Kunststoff-, und Elastomerbahnen für Dachabdichtungen - Bestimmung der WasserdampfdurchlässigkeitFeuilles souples d'étanchéité - Feuilles d'étanchéité de toiture bitumineuses, plastiques et élastomeres - Détermination des propriétés de transmission de la vapeur d'eauFlexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Determination
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