The roof steps, grille with a non-slip surface can be made of copper, aluminum, stainless steel and galvanized steel. The main stair-step size is 600x250 mm and 800x250 mm. Attached to the metal roof rebate special brackets that are adjustable according to the slope of the roof. Roof pitch can be set from 0 to 40 degrees. Mounting brackets for different types of classical chase roofs also BEMO and KALZIP roofs.