Material properties

GRÖMO manufactures roof drainage accessories in five different materials with nine different surfaces. Only European vendors are used as suppliers. This guarantees high quality in the raw material, and is a prerequisite for the high quality standards of GRÖMO.


Stainless steel

UGINOX Patina K41

This stainless steel is provided with a layer of tin electrolytically applied to both sides. It acquires a patina over time and takes on a vivid matt appearance. The tin plating tempers the natural shine of the stainless steel and allows it to be used anywhere.

For more properties and advantages, see STAINLESS STEEL



Melting point: 1.505 °C
Length variation at 100 K: 1,1 mm/m
Density: 7,70 kg/dm³


Surface weight

Assembly of metals