It must extend at least 6 inches above the roofline.
Soil pipe through roof.
Oatey 1 1 2 in to 3 in x 15 in plastic vent and pipe flashing.
Aluminium sheet fits neatly underneath the roof tiles to blend in with the roof profile while the rubber adaptor provides a watertight seal around the outside of the soil pipe to stop water entering the house through the soil stack.
It s common practice in many states to reduce the soil stack to 2 inches and extend that 2 inch pipe through the roof.
Aluminum base vent pipe flashing with adjustable rubber collar in black.
Oatey retro master roof flashing 1 4 in to 4 in x 8 in epdm rubber vent and pipe flashing.
For pricing and availability.
History of soil vent pipe stacks since the introduction to the cast iron pipe in the late 1700 s it has only been recently in the last 60 years that we have had the plastic soil stack revolution.
What is the minimum requirement for a soil vent above the window or roof the minimum a soil pipe should be above an opening area is 100mm.
Gibraltar building products 1 4 in.