Title: +038=221.001-#####T_01-Ruukki - Sandwichelement - Produktinfo.pdf
VentilationThere must be an adequate ventilation space (min. 20 mm) between the lamella and the base wall structure, enabling an unobstructed air change. It must also be ensured that there are gaps in the upper and lower edge of the wall struc- ture to ensure free air change. The lower edge of the lamellas has ventilation holes (not in Lamellas groove 10, 20 and 30 and vertical 70), through which the water that has entered the structure through the joints or is caused by conden- sation can be removed. The ventilation holes are oval, 5 x 15 mm in size. The holes are prepared as described in the fastening hole instruction above, independent of the customer-specified fastening hole positions. The outermost holes are placed 60 mm from the lamella ends.Facade flashings