OFV300 – Rytons Low Pitch Over Facia Ventilator (297mm L)
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- Low pitch over facia ventilator.
- Fixed to the top of the facia board or top course of brickwork to introduce air into the roof void.
- For roof pitches less than 15°.
- Front fins prevent roof felt from blocking the ventilation slots.
- Unseen when the roof is completed.
- 4mm ventilation slots promote unrestricted air flow and prevent the entry of birds and large insects.
- 297mm L x 59mm W x 45mm H (see image gallery above).
- CAD drawing available by email.
- 7,500mm² per length (25,252mm² per metre).
- Equivalent to a continuous 25mm venting gap.
- Fix to the top of the facia board, or top course of brickwork, through the pre-formed slots across the top of the ventilator.
- Box quantity: 30 lengths.
- Box size: 35cm W x 26cm H x 23cm D.
- Box weight: 1.2kg.
- British Standard BS 5250.
- The Building Regulations, Approved Document C.
- The Building (Scotland) Regulations, Mandatory Standard 3.15.
- The Building Regulations (Northern Ireland), Technical Booklet C.
- NHBC Standards, 7.2 Pitched Roofs.
Rytons is proud to be a family run business and British manufacturer since 1972.