TS EN 13707

TS EN 13707 is the standard that defines the terms and characteristics for flexible reinforced bitumen sheets intended for roof waterproofing. It addresses a widely used family of sheet materials in which bitumen works together with a reinforcing layer to provide waterproofing performance in roofing systems. The standard is concerned with sheets used as top layers, intermediate layers and underlayers in roof applications.

Where the product sits in a roofing build-up

The key technical idea behind this standard is that the same material family can serve different roles depending on where it is placed in the roof assembly. Top layers are more exposed to weathering, intermediate layers contribute within the multilayer system, and underlayers support continuity and overall waterproofing performance. In general technical terms, reinforced bitumen sheets combine impermeability, flexibility, dimensional stability and temperature-related behaviour, which is why reinforcement and bitumen formulation both matter in practice.

Clear limits of the scope

• It does not cover reinforced bitumen sheets used as underlays for discontinuous roofing.
• It does not cover waterproofing sheets intended to be fully bonded under bituminous products such as hot-applied asphalt; that application is specified by EN 14695.
• The standard provides definitions and characteristics for these roofing sheets, forming a technical basis for describing and comparing the products.

In practice, this standard helps align the terminology and core property profile for reinforced bitumen roofing sheets. That makes it easier to understand how product construction, intended position in the roof, and performance expectations relate to one another. The referenced test and measurement standards support evaluation of those characteristics by established methods.