A complete and easy to fit ventilation system suitable for new build or refurbishment projects.
Consists of:
Uses:
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Browse BIM Information| Free airflow | Roll form vent width | Length | Product Code |
|---|---|---|---|
| 10,000mm² per meter | 300mm | 6m | EVP6 |
| 25,000mm² per meter | 300mm | 6m | EVP6/25 |
| 10,000mm² per meter | 600mm | 6m | EVP6/600 |
| 25,000mm² per meter | 600mm | 6m | EVP6/25600 |
Roll form eaves vents
Unroll the ventilator along the rafters along the full length of the eaves. Position centrally above the wall plate. This is the narrowest part of the roof where the roof insulation is most likely to constrict the airflow. Push the corrugations down over the top of the rafters and secure using clout nails or staples.
Over fascia vents
Fix ventilators to the top edge of the fascia board using screws or nails through the fixing holes provided. Ventilation must be provided for the full length of the eaves and along both sides of the building to create a cross flow ventilation action. Felt support panels are fit directly on top of the over fascia vent. Secure with clout nails driven into the top of the fascia board through the slots in the over fascia vent. Ensure each panel is allowed to overlap the next. Allow the rear of the panel to lay back on to the rafters.
1m over fascia ventilator – Product OF1 (EVP6) or OF2 (EVP25)
Six lengths are included in the pack.
Roll form eaves ventilator – Product 1121 (300mm) or 1131 (600mm)
One 6m roll is included in the pack.
Felt support panel – Product 1128
Ten 600mm lengths are included in the pack.
| Insulation depth | Min. roof pitch (deg) |
|---|---|
| 100mm | 17.5° |
| 150mm | 25° |
| 200mm | 35° |
| 225mm | 40° |
| 250mm | 45° |
| Insulation depth | Min. roof pitch (deg) |
|---|---|
| 100mm | 10° |
| 200mm | 17.5° |
| 225mm | 20° |
| 250mm | 22.5° |
| 270mm | 25° |
| 300mm | 27.5° |
| 350mm | 32.5° |
| 400mm | 37.5° |
