TS EN 13707/A1

TS EN 13707/A1 is the A1 amendment to EN 13707 for reinforced bitumen sheets used in roof waterproofing. It belongs to the technical language and product-characterisation framework for flexible waterproofing sheets used on roofs, rather than standing as a separate, standalone product standard on its own.

In general technical terms, reinforced bitumen sheets are flexible roofing membranes made by combining bitumen with a reinforcement layer. The reinforcement contributes tensile strength, dimensional stability, and resistance to mechanical handling, while the bituminous matrix provides the waterproofing function and strongly influences ageing behaviour. These materials are widely used in built-up and membrane roofing systems where seams, laps, and long-term movement need to be considered together.

Why the terminology matters in roof waterproofing

In this field, terms such as “flexible sheet,” “reinforced bitumen sheet,” and “roof waterproofing” distinguish product families and performance expectations. A roof membrane must do more than block water: it also has to accommodate slope, joints, structural movement, and environmental exposure. The standard family therefore helps align how products are identified and described in a consistent technical vocabulary.

What this amendment represents

An A1 designation indicates an amendment to the parent standard’s definitions and characteristics framework, but the information provided here does not list the exact clauses changed. For that reason, this document should be understood as a revision element within EN 13707, especially relevant when comparing product naming, reinforcement types, and intended roof-waterproofing use. It supports clearer differentiation between membrane types in roofing applications.

• Supports the terminology framework for reinforced bitumen sheets used in roofing.
• Provides a common technical language for flexible waterproofing sheet characteristics.
• As an A1 amendment, it should be read as part of the updated EN 13707 standard family.
• Relates to building materials and binder/sealing-element classifications.