G1200N – Over Fascia Vent

G1200N - 10mm Over Fascia Vent

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The VENT Over Fascia Vent – G1200N is the most practical and cost-efficient method of ventilating the Eaves. It is easy to install, discrete and is compatible with either timber or metal fascias.

The G1200N is specifically designed for trussed roofs with pitches >15°.

The G1200N VENT Over Fascia Vent is designed to discreetly ensure a positive airflow of 10,000mm² per linear metre, into the roof space between the roof membrane and the fascia board. This product is ideal for new build and re-roofing situations.

The G1200N is designed with 4mm evenly spaced openings specifically sized to prohibit large insects gaining access but wide enough to prevent capillary action.

The G1200N should be used in conjunction with other specified VENT products.


Technical Properties

Dimensions10mm ventilator x 1000mm long
Total LM per Carton20 pieces (20 LM) per Carton
Calculated Passive Air Flow10,000mm² per LM
Vent size4mm
Warranty15 years


  • The G1200N Over Fascia Ventilator should be nailed or screwed to the top of the fascia board through the fixing holes provided along the full length of the eaves.
  • A minimum of 20mm gap between the bottom purlin and Over Fascia Vent is required for air flow into the roof cavity.
  • It is compatible with both timber and steel fascia.


  • It comes in 1 long
  • 20 pieces (20 LM) per Carton