Construction products detail

Flexible sheets for concrete waterproofing

Flexible sheets for concrete waterproofing are used as an additional waterproofing measure for waterproof concrete systems. For this, the flexible sheet is inserted into the formwork prior to concreting and bonds with the concrete fully, and above all in a way that prevents water underflow.

Furthermore, novel forms of waterproofing of buildings have been developed using combinations of flexible sheets and normal concrete.

Regulatory framework

The use of flexible sheets as an additional waterproofing measure for waterproof concrete does not require regulatory verification of the fitness for use or application (e.g. approval), cf. MVV TB, no. D

There are currently no conclusive technical rules for construction techniques in which flexible sheets are used in combination with normal concrete for waterproofing of buildings. DIBt grants general construction technique permits (aBG) for the design and execution of such applications, also in combination with a national technical approval (abZ).

As a European Technical Assessment Body, DIBt can also issue European Technical Assessments (ETAs) for flexible sheets for concrete waterproofing based on European Assessment Documents (EADs) still to be developed or already existing, such as

  • EAD 030378-xx-0605 Fully bonded, pre-applied flexible sheet for waterproofing (used as an additional waterproofing measure for waterproof concrete structures)

National procedure

A national technical approval (abZ) and/or oder general construction technique permit (aBG) is granted upon application (see Model Building Code (MBO), Sections 16a(2) and18(2) and (4)). This also applies to amendments and supplements to, or renewals of existing approvals and/or construction technique permits.

No formal requirements apply. The following information is needed: name and address of the applicant, description of the product and/or construction technique and its field of use or application, type of decision required (new decision, amendment or supplement to, or renewal of, an existing decision).

Please feel free to use the template below.

European Technical Assessment (ETA)

To start the ETA procedure, please submit the form below. We will then check if the prerequisites for issuing an ETA are met, i.e., in particular, if the product is not fully covered by an existing harmonised standard. If the prerequisites are met, we will check whether a European Assessment Document (EAD) covering the requested assessment scope already exists or still needs to be developed. If an EAD needs to be developed or amended, a complete technical file needs to be established before the procedure can begin.

Subject concerned Applicant Decision no. Issued on
SECUFLEX SMT 1212 H-Bau Technik GmbH Am Güterbahnhof 20 79771 Klettgau DEUTSCHLAND ETA-20/0278 08.12.2020
Polyfleece SX 1000 an.kox GmbH Junghansring 52 72108 Rottenburg a. N. DEUTSCHLAND ETA-22/0536 10.10.2022
Robotex X200 Robotec AG Systembaustoffe Jöriacher Strasse 6 5242 BIRR SCHWEIZ ETA-23/0372 26.10.2023