It s common practice in many states to reduce the soil stack to 2 inches and extend that 2 inch pipe through the roof.
Soil pipe through roof.
Easily mouldable to suite any roof profile.
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.
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.
Oatey retro master roof flashing 1 4 in to 4 in x 8 in epdm rubber vent and pipe flashing.
For pricing and availability.
Gibraltar building products 1 4 in.
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.
Aluminum base vent pipe flashing with adjustable rubber collar in black.
Oatey 1 1 2 in to 3 in x 15 in plastic vent and pipe flashing.