The system with roof fans provides negative pressure ventilation of sanitary facilities of smaller commercial buildings in a simple and operationally simple way.
Main features of the system:
- roof fan for air exhaust
- pressure ventilation of sanitary facilities
- no heat recovery
- suitable for renovation of sanitary facilities
Basic elements of the system:
- roof fan
- air ducts
- drain plate valves
In this negative pressure system, the contaminated air is exhausted from the sanitary facilities of the commercial building by a roof fan. The system does not use heat recovery. Fresh air is supplied to the sanitary facilities indirectly from other ventilated areas of the building.
