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5 FAQs about EN 1090

Five frequently asked questions about EN 1090

Metal construction EN 1090

The European standard EN 1090 consists of assessment of conformity of steel and aluminum components used in the steel and concrete designs.  Since July 2014, the EN 1090-1 (requirements for conformity assessment for structural components) is obligatory by law, but there are many questions and uncertainties relating to the application, working environment and the content of the norm itself. A lot of manufacturers are wondering if the EN 1090-1 is applicable to them. Below are 5 most  frequently asked questions about the norm.

1. What does EN 1090 mean?

The EN 1090 is usually referred to the EN 1090-1 that is the first norm of the 5-parts standard. The EN 1090-1 is a product norm that has been harmonized according to the Construction Products Regulation 305/2011/EU that obligates economic operators to incorporate steel and aluminum components into construction to provide CE marking.

2. Is CE marking obligatory for complete steel construction?

No. The norm obligates economic operators to have CE marking only on steel and aluminum parts of construction.

3. What are the general EN 1090 norms?

The EN 1090 consists of 5 norms. Only the first norm is related to CE marking. The EN 1090-2 is related to the technical requirements for the execution of steel constructions; the EN 1090-3 is related to the technical requirements for the aluminum constructions. The 4th and the 5th norm are under development and are going to be related to the thin-walled, cold formed parts made of steel and aluminum.

4. When the CE marking is obligatory according to EN 1090-1?

Only the parts that are related to the construction market and are mentioned in the description of EN 1090-1 are obligatory to follow the appropriate conformity assessment procedure and have CE marking. Due to the uncertainties regarding the application of parts, the European Commission published the list that clarifies which products do not fall under the EN 1090-1. The list can be found under the link.

5. How to determine the correct execution class (EXC)?<

Previously, it was determined on the basis of EN 1090-2 (Table Annex 2) within which execution class fells aluminum and steel structural components.However, this table has been dropped and replaced by Appendix C of Eurocode 3.

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