TS EN 13969/A1

TS EN 13969/A1 is an amendment to EN 13969 covering flexible sheets for waterproofing, specifically bitumen damp proof sheets and bitumen basement tanking sheets used for storage in basement applications. In practical terms, this standard family is about the shared terminology and the characteristic properties used to describe these bituminous sheet products, which form a continuous barrier intended to limit the passage of moisture and water through building elements.

Where these bituminous sheets fit in waterproofing practice

Bitumen is widely used in waterproofing because it can be formulated into flexible sheet products that accommodate movement in the substrate and help maintain continuity across overlaps, joints, and penetrations. In general technical use, the important concepts are flexibility, crack-bridging behavior, and durability under the service conditions the sheet is designed for. Basement tanking products are used in below-ground parts of buildings where external moisture, dampness, or groundwater-related exposure makes reliable moisture control especially important.

What the A1 designation means

The A1 suffix indicates that this listing is an amendment to the parent standard rather than a standalone full specification. Amendment documents may update definitions or technical provisions in the base standard, so the applicable wording is normally understood together with the underlying edition. For users of the product family, the key point is to identify the correct combined publication when checking terminology or characteristics for bituminous damp proof sheets and basement tanking sheets.

• Part of the flexible waterproofing sheet family.
• Covers bitumen damp proof sheets.
• Includes bitumen basement tanking sheets for storage use in basements.
• Focused on definitions and characteristics.
• A1 identifies it as an amendment to the parent standard.