Minimum roof pitch 35° ( 40° Handmades)
- Free vent area 7,500mm2
- Spacing at low level (10,000mm2 per m): 0.75m intervals
- Spacing at high level (5,000mm2 per m): 1.5m intervals
Compatibility:
Concrete Plain Tile, Humber, Humber Sandfaced, Village, Alban, Barrow, 301, 303, Goxhill, Shire, Traditional, Peg
Sold separately:
- In-Line/Invisivent Pipe Adaptor
- Flexi Pipe