EN 1928:2000

Overview

EN 1928:2000 is a crucial European Standard developed by CEN that defines the methods for determining the watertightness of flexible sheets used in roof waterproofing. This standard applies specifically to factory-made sheets composed of bitumen, plastic (thermoplastic), and rubber (elastomeric) materials. The standard outlines precise equipment and procedural requirements to evaluate the resistance of these sheets against ponding water and hydraulic pressure, ensuring their effectiveness in preventing water ingress.

By establishing uniform testing procedures, EN 1928:2000 ensures consistent quality and reliability of waterproofing sheets utilized in the construction sector, supporting long-lasting roof protection and durability.

Key Topics

• Scope and Applicability
  EN 1928:2000 covers factory-made flexible sheets for waterproofing, primarily bitumen, thermoplastic, and elastomeric sheets. It excludes other waterproofing materials such as liquid-applied membranes or non-factory-made products.

• Watertightness Testing Methods

  • Resistance to ponding water, simulating water accumulation on surfaces
  • Resistance to hydraulic pressure concentrated on limited surface areas
    The standard specifies how to set up the test apparatus and maintain conditions that replicate real-world water exposure to evaluate sheet performance.

• Test Equipment and Setup
  Detailed requirements for the devices used to apply water pressure and methods to observe water permeability, ensuring accurate and repeatable results.

• Performance Criteria
  Defines acceptance levels for watertightness, helping manufacturers certify their products meet market and regulatory demands.

Applications

EN 1928:2000 is essential for a variety of stakeholders in the roofing and construction industries:

• Manufacturers of Waterproofing Sheets
  Use this standard to validate product performance, optimize material formulations, and demonstrate compliance with European market requirements.

• Roofing Contractors and Engineers
  Reference the standard to select appropriate waterproofing membranes that meet durability and watertightness specifications, reducing risk of leaks and associated damages.

• Building Inspectors and Certification Bodies
  Employ the standard to verify that installed roofing materials conform to accepted test methods, facilitating quality assurance and regulatory compliance.

• Architects and Designers
  Integrate the standard’s test results into material selection criteria, ensuring robust waterproofing solutions in building designs.

Related Standards

To complement EN 1928:2000, several other standards are relevant for comprehensive waterproofing system evaluation:

• EN 13970 - Flexible sheets for waterproofing - Bitumen and plastic sheets for roof waterproofing - Determination of resistance to impact
• EN 13659 - Flexible sheets for waterproofing - Reinforced bitumen sheets for roof waterproofing - Definitions and characteristics
• EN ISO 1408 - Flexible sheets for waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Determination of dimensional stability
• EN 12311-1 - Flexible sheets for waterproofing - Determination of tensile properties - Part 1: Bitumen sheets for roof waterproofing

Adherence to these standards together provides a thorough assessment of waterproofing sheets' performance, strength, and durability, ensuring reliable roofing solutions.

By following EN 1928:2000, manufacturers and industry professionals can guarantee the watertight integrity of flexible roofing sheets, essential for protecting buildings against water damage and extending roof lifespan. This standard promotes product quality, market transparency, and ultimately safer, more durable construction outcomes.