Our members put their trust in independent structural planning, approval, testing, maintenance and surveying.

Member List

Member Portfolio

Carlisle Construction Materials GmbH

Europe’s leading manufacturers of EPDM roofing membranes and sealing membranes. The portfolio encompasses good brands such as ESITRIX®, HERTALAN®, ALUTRIX®, ECOLAN® and HARDCAST® for sealing flat roofs, facades and buildings.

Schellerdamm 16
21079 Hamburg

Tel. +49  (0) 40-788 9330

Harald Zahn GmbH

Has been setting standards in the development of long-life and modular mounting systems for sealing and insulating flat roofs for more than 35 years.

Ludwig-Wagner-Str. 10
69168 Wiesloch

Tel. +49  (0) 6222-92 670

Wierig GmbH, Dach und Fassade

Germany-wide network with over 120 members of staff. The Wierig Group is a high-performance roofing specialist and offers professional services in everything related to roofs, facades, sealing and solar panels.

Lindenstraße 57
53721 Siegburg

Tel. +49  (0) 2241-59 450

PROTECTUM, Gesellschaft für Monitoring und Leckageortung mbH

Detail and implementation planning and consultation for the sealing of flat roofs. The development of monitoring concepts for testing building seals for sustainably waterproof constructions.

Bismackstraße 10-12
10625 Berlin

Tel. +49  (0) 30 590-083

NIS - Nordic Industrial Services GmbH

Independent, neutral and certified roof management. System solutions in the field of leak location, leak tests, digital cataloguing and building monitoring on flat industrial roofs.

Max-Planck-Str. 26
68519 Viernheim

Tel. +49  (0) 6204-980 29 75

Tramex Meters LTD

The leader in the development and production of moisture meters. Tramex has many years of expertise in the detection, tracking, and monitoring of moisture in the building shell.

Unit F, Glencormack
Business Park
Kilmacanogue, County Wicklow

Tel. +353 1 681 4450


Interdisciplinary structural testing, technical due diligence, building control, advice and evaluation.

Grüner Weg 83
 52070 Aachen

Tel. +49  (0) 241-93 67 8440

ST QUADRAT Fall Protection S.A.

LUX-top Absturzsicherungen sets standards when it comes to personal safety and service, for all work taking place in areas where there are risks relating to falls, whether on roofs or facades. The portfolio includes anchor points, rope systems, side protection, guard-rail and rail systems.

45, rue Fuert
5410 Beyren

Tel. +49 (0) 800-5410541

Engineering office Dipl.-Ing. Klaus Hafer

Engineering office for sealing buildings, surveys of and quality assurance for flat roofs, steep roofs, lightweight metal roofs, parking decks, exterior insulation combined system facades and light metal facades.

Am Grott 11
51147 Köln

Tel. +49 (0) 2203-1010100

Fleischmann & Petschnig Dachdeckungs-Ges.m.b.H.

Maintenance using an electronic tele-roofing system, roof seal testing using sensors, installation of roof safety systems. Implementation of large-scale roof engineering projects in the B2B area.

Rosentalerstr. 87
9020 Klagenfurt

Tel. +43 (0) 463-216550


High quality plastic sealing products based on polythene, such as FPO/TPO, ECB.

Im Schedetal 22
34346 Hann. Münden

Tel. +49 (0) 5541-98350


Measurement services with an emphasis on photogrammetry, building and engineering surveys and specialist 3D surveys, as well as services in the field of flat roof monitoring.

Im Bifang 2
5080 Laufenburg

Tel. +41 (0) 62 869 80 87

Leister Technologies Deutschland GmbH

Worldwide market and technology leader for plastic-welding units and industrial process heat modules for 70 years.

Rohrstraße 16
58093 Hagen

Tel. +49 (0) 2331-95940


The European leader in sustainable testing in safety-relevant areas on industrial buildings. Innovative roof services and sensor-controlled monitoring hardware.

Magdenerstr. 2
4310 Rheinfelden

Tel. +41 (0) 61 836 96 70

Soudal N.V.

Europe’s leading independent producer of sealants, adhesives and PU foams, both for professionals and private customers.

Everdongenlaan 18-20
2300 Turnhout

Tel. +32 (0) 14 42 42 31

Sita Bauelemente GmbH

System solutions for draining and airing flat roofs, with an emphasis on industrial and commercial buildings. The portfolio includes solutions for gravity, pressure and emergency drains and well as structural preventative fire protection.

Ferdinand-Braun-Str. 1
33378 Rheda-Wiedenbrück

Tel. +49 (0) 2522-83400

Dr. Udo Simonis

Publicly appointed and sworn expert on sealing with plastics, elastomers and bitumen.

Wingertstr. 13
63549 Ronneburg

Tel. +49 (0) 6048-951482