Gorter RHT roof hatches are supplied with a European Technical Assessment (ETA), undisputed confirmation of proven performance, and an associated CE mark. The ETA is a document that contains information on the performance of the roof hatch as it relates to the essential features of that product.


The ETA for Gorter roof hatches is issued by the Dutch “Technical Assessment Body”, the SKG-IKOB. The ETA is valid in all 28 European member states and the states of the European Economic Area, as well as Switzerland and Turkey.