Roof Mounted Fans

Roof mounted fans discharge extract air vertically at roof level — up and away from windows, walkways and neighbouring buildings — while freeing up plant space inside. They suit kitchens, washrooms, commercial units and industrial buildings where ducting to roof level is simpler than finding wall space for a conventional extract fan.

Why choose a roof-mounted extract fan?

• Vertical discharge carries odours and stale air clear of occupied areas
• External mounting saves internal plant space and keeps fan noise outside the building
• Designed for the weather: bird and wind guards and corrosion-protected casings

Our roof-mounted range is the Elta Clearflow CF, a vertical discharge centrifugal fan with three-dimensional backward-curved aerofoil impellers, available in five sizes from 315mm to 500mm with single- and three-phase motor options. It can be mounted at angles up to 30° directly onto pitched roofs, with a bird guard and wind guard fitted as standard and air volumes up to 2.66 m³/s.

If your roof extract runs hot or grease-laden — commercial kitchen canopies especially — step up to the Clearflow CFHT, rated to 120°C airstream temperature with the motor out of the airstream. Alpha Air is a Leicester-based UK supplier: datasheets are on every product’s Downloads tab, lead times are shown per product, and orders over £400 ex VAT include free UK mainland delivery.