Examples are simple railings (up to 0.5kN/m impact load), stairs or balconies for single-family houses as well as canopies on the non-public ground such as farms or building yards.

Execution Class 1 (EXC 1) mainly comprises structures made of steels up to quality S275 that are subjected to static loads.

Subsequently, a company may only execute orders according to its certified execution class.

DIN EN 1090 is the German version of DIN, the German Institute for Standardization.įour execution classes are mentioned within the regulations in the course of certification of a manufacturing company, an execution class must be selected.

EN 1090-3 is the pedant to EN 1090-2 and contains technical rules for the production of aluminum structures.

EN 1090-2 is a collection of technical rules on how to make steel structures.

Once conformity has been proved, the CE mark may be issued. It also regulates how conformity (CE) is to be proven.

EN 1090-1 requires factory production control and is intended to ensure that non-compliant products do not leave the manufacturing plant.

With new welding instructions: testing of the first five welds by means of non-destructive testing.

New definition of weld seam classes (WIC).

Weld seam testing: too small fillet weld thickness is now more closely tolerated.

New requirements for fillet welds for component connections.

Hole welds must have a minimum radius of 40mm.

In other design classes, overwelding is now included in the procedure qualification.

Welding of primed materials only permitted in EXC1.

New task for the structural engineer: determination of EXC (design class).

Crusade tests from now on only from S460.

Standard welding processes in EXC3 and EXC4 now possible under certain conditions.

Annual testing of automated cutting processes now recommended.

Requirements for cut surfaces now only apply to non-welded edges.

New requirements for welds on reinforcing steel and the processing of stainless steels.

Title: “Technical requirements for load-bearing cold formed steel structural members and load-bearing cold formed components for roof, ceiling, floor and wall applications”.

The associated EU regulation is 305/2011.Īlthough less discussed in this article, it is still interesting: Since September 2018 there is a new edition of EN 1090. Since the introduction of EN 1090 in 2012 (transition period until ), manufacturers of construction products must obtain certification from an accredited body.

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