Manthorpe Building Products

Roof Ventilation

Slate Vent

Manthorpe Slate Vents are an unobtrusive, economical roof ventilator providing 10,000mm2 of air flow per unit.

Manufactured from UV stabilised durable polypropylene, Slate Vents have and integrated insect grill and spigot.

The Slate Vent, which has proven outstanding in independent performance tests, can be used for both high and low level roof ventilation.

Alternatively, it can be used as an outlet terminal for extraction fans and soil pipe ventilation when used in conjunction with a Manthorpe GRPA Flexible Pipe.

The product is designed to replace a single slate in a roofline, but an addition vent also comes in a large base format for use with random slating.

The Fast Fit Refurb Vents, without the original vent spigot mounting on the base, make retro-fitting into existing surrounding slates easier. It is simply slid between natural or man-made slates already in position with no need to cut battens, also available in a large base format.

Product Benefits

  • 10,000mm2/m of air flow per unit
  • Replaces an existing slate
  • Larger base available for random slates
  • Can be cut down to fit
  • Integral cowl with insect grill
  • Slates without spigot available for retrofitting

Slate Ventilators


Product Specifications

Product Code Description Free Airflow Size Material Colour Box Qty
GRSV30-25 Alpha Vent for Slates 10,000mm2 600mm x 300mm Polypropylene Black 10
GRSV30-25R Refurbishment Slate Vent 10,000mm2 600mm x 300mm Polypropylene Black 10
GRSV45 Random Slate Vent 10,000mm2 600mm x 450mm Polypropylene Black 5
GRSV45R Refurbishment Slate Vent 10,000mm2 600mm x 450mm Polypropylene Black 10