EN 13967:2004/prA2

Overview

EN 13967:2004/prA2 is a European standard developed by CEN Technical Committee CEN/TC 254, focusing on flexible sheets for waterproofing. This standard specifically covers plastic and rubber damp proof sheets, including basement tanking sheets, and provides clear definitions and characteristics essential for their application in construction. The amendment prA2 was introduced to update references, clarify test methods, and specify evaluation requirements to support regulatory compliance.

The standard is critical for ensuring the durability, effectiveness, and safety of waterproofing materials used to prevent moisture ingress from the ground into buildings and structures. It applies broadly to polymeric and elastomeric materials designed to provide reliable damp-proofing solutions.

Key Topics

• Definitions and Characteristics
  The standard provides detailed terminology related to plastic and rubber waterproof sheets, helping unify understanding and usage across Europe.

• Resistance to Impact
  Impact resistance testing follows EN 12691 with specified drop heights, evaluated based on regulatory requirements to assess mechanical durability during installation and use.

• Chemical Resistance
  Sheets must maintain watertightness after exposure to chemicals, particularly dilute alkalis. For polyolefin sheets, an accelerated ageing test simulates long-term alkaline exposure to verify durability.

• Compatibility with Bitumen
  To ensure long-term stability, sheets are tested for chemical compatibility with bitumen at elevated temperatures, reducing risks of degradation when used with bituminous materials.

• Joint Strength
  The integrity of seams between sheets is assessed according to EN 12317-2, ensuring consistent waterproof performance where sheets overlap or are joined.

• Water Vapour Transmission
  Water vapour resistance is measured per EN 1931 to control moisture diffusion, contributing to the overall moisture management of a structure.

• Reaction to Fire
  Fire performance is evaluated using EN 13501-1 and EN ISO 11925-2 test methods. Current tests focus on surface flame attack, with ongoing investigations into suitability and possible future improvements of fire testing standards.

Applications

EN 13967:2004/prA2 standardized waterproofing sheets serve vital roles in:

• Building Foundations
  Protecting basements and other subterranean structures from water ingress and ground moisture to preserve structural integrity and indoor comfort.

• Damp Proof Courses (DPC)
  Applied horizontally within walls and floors to prevent rising damp, contributing to healthier, mold-free indoor environments.

• Basement Tanking
  Sheets designed for direct contact with soil and water pressure help waterproof basements and underground car parks, essential for water-sensitive locations.

• Concrete Foundation Slabs
  Vapour control layers formed by these sheets reduce the risk of moisture-related issues within concrete structures.

The standard aids manufacturers and builders by ensuring materials comply with essential requirements, improve installation reliability, and meet safety regulations.

Related Standards

• EN 12691: Vertical impact testing of flexible sheets for waterproofing.
• EN 1847: Chemical resistance testing for sheets exposed to diluted alkalis and other substances.
• EN 1928: Water tightness testing under pressure.
• EN 1548: Bitumen compatibility testing.
• EN 12317-2: Joint strength evaluation for flexible sheets.
• EN 1931: Measurement of water vapour transmission properties.
• EN 13501-1: Fire classification of construction products.
• EN ISO 11925-2: Ignitability testing of building products subjected to direct flame.

By aligning with these complementary standards, EN 13967 ensures a comprehensive framework covering product performance, durability, and safety in waterproofing applications.

Keywords: EN 13967, flexible sheets waterproofing, plastic damp proof sheets, rubber basement tanking sheets, waterproofing standards, waterproof membranes, chemical resistance, fire reaction, construction materials, damp proof course, waterproofing durability.