Curtain injections

Curtain injections are used for retrofit waterproofing of damp structures, e.g. basements. For this, a gel is introduced into the surrounding soil (or groundwater), where it hardens.

Regulatory framework

In this area, DIBt grants national technical approvals (abZ) and general construction technique permits (aBG), assessing the impact of the curtain-injection agent on soil and groundwater.

Construction products for insulation of damp walls which, unlike the curtain injections, do not come in direct contact with soil or groundwater do not require verification of fitness for use, cf. MVV TB, no. D 2.2.1.8.

Grundsätze zur Bewertung der Auswirkungen von Bauprodukten auf Boden und Grundwasser (70 pages ) Stand: 2011

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.