Manthorpe Building Products

Roof Ventilation

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Circular Soffit Vent

Manthorpe’s Circular Soffit Vent can be slotted into the soffit board prior to installation for new build situations or just as easily retro-fitted into existing soffits.

Standard fixing for this product is a simple push twist action into a 70mm hole drilled in the soffit board.

The vent features evenly spaced slots small enough to prohibit large insects gaining access but wide enough not to be blocked by debris, paint or water droplets.

Product Specification

  • 2150mm² per G700
  • To achieve 10,000mm2/m of free airflow the G700 should be fitted at 200mm centres
  • To achieve 25,000mm2/m of free airflow the G700 should be fitted at 86mm staggered centres
  • Push fit into 70mm diameter hole in soffit board

G700
GL700 in situ

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Product Specifications

Product Code Description Free Airflow Size Material Colour Box Qty
G700 Circular Soffit Vent 2,150mm² 70mm diameter Polypropylene White/Brown Black/Golden 50