Slate is not exactly like slate

The Rathscheck Quality System

	Best slate only from tested deposits.
	Continuous check of the rock quality.
	Constant supervision of the production processes.
	Strict selection of the finished roofing slate.

The Rathscheck Quality System exceeds by far the required national and European test standards and is based on many decades of experience in the production of slate for roof and façade. These resulted in a test system for assessing the worldwide slate qualities. Only the best slate deposits comply with our strict requirements.

With test methods developed by ourselves, by constantly checking our own production processes on site as well as the productions of our international strategic partner we take care of the observance of the Rathscheck quality criteria. At the same time we are supported by independent test institutions.



Our mine Katzenberg in Mayen. The precious Moselschiefer ^® is mined here.		Our InterSIN production in Spain: The largest slate mine of the world.



Only the best rock layers in the mine Katzenberg are carefully further processed into cap stones and are given the rating Moselschiefer ^®.		It requires a lot of experience and know-how to assess the slate quality.