SIST EN 12039:2016

Overview

SIST EN 12039:2016 is a European Standard developed by CEN that specifies the apparatus and test procedure for determining the adhesion of granules to factory-made bituminous sheets used in roof waterproofing. This standard is essential for assessing the durability and waterproofing quality of bitumen sheets by quantifying how well surface granules adhere under simulated conditions. While primarily designed for roofing applications, the test method outlined in SIST EN 12039:2016 may be applicable in other industries where granule adhesion to bituminous sheets is relevant.

Key Topics

• Scope and Application
  Applies to factory-made bitumen sheets for roofing to determine granule adhesion through a standard brushing test method.

• Test Principle
  The test measures adhesion by brushing the specimen with a controlled force and number of cycles, then comparing the mass of granules before and after brushing.

• Apparatus Specifications
  Includes a brushing machine with standardized brush design, balance accurate to 0.01 g, specimen cutting tools, conditioning room with controlled temperature and humidity, and a household vacuum cleaner for removing loose granules.

• Sample Preparation
  Samples are cut from roofing sheets in specified dimensions (50 mm x minimum 285 mm), conditioned under controlled environmental conditions, and cleaned of loose granules before testing.

• Test Procedure
  Test specimens are clamped, brushed cyclically, and the mass of granules lost due to brushing is measured to calculate adhesion.

• Result Expression
  Adhesion results are expressed as a percentage loss of granules relative to the initial granule mass per unit area, using a precise calculation formula.

• Accuracy and Reporting
  While specific precision data is not provided, the test report must include product details, test conditions, sample handling, procedure references, and test outcomes.

• Annexes

  • Annex A details the brush model and brushing area dimensions.
  • Annex B describes the method to determine the initial mass of granules using hot solvent extraction and sieving.

Applications

• Roof Waterproofing Quality Control
  Ensures bituminous sheets maintain granule adhesion essential to protecting the roof from weathering, UV exposure, and mechanical wear.

• Manufacturing Process Validation
  Allows manufacturers to verify consistency of granule adhesion in production batches of waterproofing sheets.

• Material Development and Certification
  Supports development of improved bitumen sheets by providing a reproducible test method recognized across Europe.

• Cross-industry Use
  Applicable to other sectors utilizing bituminous flexible sheets needing assurance of granule adhesion performance.

Related Standards

• EN 13416:2001
  Provides rules for sampling flexible sheets for waterproofing, referenced for sample collection in SIST EN 12039:2016.

• ISO 3310-1
  Specifies technical requirements for test sieves used in particle size separations, referenced for granule separation in granule mass determination.

• Previous Edition: EN 12039:1999
  SIST EN 12039:2016 supersedes the 1999 version, incorporating editorial updates and procedural improvements.

SIST EN 12039:2016 sets a comprehensive, standardized approach to assessing granule adhesion on bituminous roof waterproofing sheets, ensuring product reliability and contributing to higher roofing performance and durability. By following this standard, manufacturers, testers, and regulatory bodies can maintain quality assurance in flexible waterproofing sheet production and application.