Construction products detail

Pipe insulation products

Pipe insulation products are used to insulate heating distribution and hot water pipes as well as cooling distribution and cold water pipes in buildings in accordance with the Buildings Energy Act (GEG).

Regulatory framework

Pipe insulation products are mostly covered by European product standards and can be used taking into account the Administrative Provisions – Technical Building Rules of the federal states (VV TB, compare the common model MVV TB), DIN 4108-4 and the Buildings Energy Act.

DIBt grants national technical approvals (abZ) and issues European Technical Assessments (ETAs) for pipe insulation products not covered by the existing standards.

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.


new decision
valid until
Subject concerned Applicant Decision no. Validity
from / to
Dämmstoff für Rohrleitungen aus offenzelligem Polyurethan-Schaumstoff "flexen PUR 50 %" Adolf Würth GmbH & Co. KG Reinhold-Würth-Straße 12-17 74653 Künzelsau Z-23.14-1182 Z: 26.03.2020
G: 27.03.2025
Dämmstoff aus offenzelligem Polyurethan-Schaumstoff für Rohrleitungen "flexen PUR 100 %" Adolf Würth GmbH & Co. KG Reinhold-Würth-Straße 12-17 74653 Künzelsau Z-23.14-1183 Z: 26.03.2020
G: 27.03.2025
Dämmstoffe aus Polyesterfaservlies für Rohrleitungen "VÖWAFLEX Solar" VÖWA GmbH Haunstetter Straße 4 86399 Bobingen Z-23.14-1349 Z: 14.09.2023
G: 14.09.2028
Dämmstoffe aus Polyestervlies für Rohrleitungen "flexen Solarvlies" Adolf Würth GmbH & Co. KG Reinhold Würth Straße 12-17 74653 Künzelsau Z-23.14-1470 Z: 11.10.2023
G: 11.10.2028
Armaturen mit werkmäßig aufgeschäumten Dämmstoffen aus Polyurethan-Schaumstoff "mhs-UNIbox", "mhs-MEISTERbox" mhs GmbH Montagesysteme für Heizung und Sanitär Gewerbepark 11 8510 STAINZ ÖSTERREICH Z-23.14-1974 Z: 21.02.2020
G: 21.02.2025