It must extend at least 6 inches above the roofline.
Soil pipe through roof.
Aluminum base vent pipe flashing with adjustable rubber collar in black.
It s common practice in many states to reduce the soil stack to 2 inches and extend that 2 inch pipe through the roof.
For pricing and availability.
Http www fixmyroof co uk this video shows you how to install a soil pipe flashing or vent pipe through a roof to profiled roof tiles otherwise known as a l.
Easily mouldable to suite any roof profile.
Oatey 1 1 2 in to 3 in x 15 in plastic vent and pipe flashing.
Gibraltar building products 1 4 in.
After climbing into the loft to install a tv ariel i ve noticed that the soil stack from the ensuite vents through the tiled roof but the main bathroom pipe stops about 2 feet above the joists insulation in the loft space with some sort of polystyrene cap on it.
Oatey retro master roof flashing 1 4 in to 4 in x 8 in epdm rubber vent and pipe flashing.