BDXN / BDYN

Penthouse louvre type BDXN (steel) and BDYN
(aluminium) are suitable for intake or exhausting air. The penthouse louvre is available up to very large sizes so that the intake or exhaust of several ventilation installations can be combined. It is possible to design the penthouse louvre as combined supply and exhaust.

Features:
Max. intake velocity:
(over roof hole) see tables.