RoofLine RoofLine Roof ventilation units for energy-saving ventilation and heating of halls. Systemair RoofLine roof ventilation units for peripheral ventilation with heat recovery and heating (version for heating and cooling possible as well) for exposition halls, fair halls, industrial buildings, storage buildings, gyms, multi-purpose buildings, indoor tennis centres, etc. RoofLine units consist of: an outdoor unit, a roof frame and an indoor unit.
