Fulfilling norms all along the guideline

Quality norms are created by specific demands determined by law, state of the art, the manufacturers and naturally the consumers themselves.

These four corner stones and their resulting norms are the foundation of the doitBau® selection. With them we create the requirements for an extensive product satisfaction.

Stipulations, norms and their producers for the doitBau® product selection

CE Marking

A mandatory conformity marking in compliance with EU legislation, whereby manufacturers confirm that their products are in accordance with general norms.

DIN norm

Standard obtained with assistance of the German Institute for Standardization


Energy saving regulation, determines energy efficiency standard for buildings


Guidelines by the European Organisation for Technical Approvals


Voluntary standards, issued by the Austrian Standard Institute


German Roofer Union, publisher of roofing regulations