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 furnished with an electroplated zinc layer on both sides. It forms a patina over time, and has a vivid matte appearance. The tin plating alleviates the natural shine of the stainless steel, and allows it to be used in any location you like.

For more properties and benefits, 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