A vent Terminal and depending if the roof is strictly for weather protection it terminates about 24" above the roof. If the roof area is for people then it is 7 ft above the roofing surface.
The sewer vent pipe is typically located on the roof of the building.
A pipe extended above the roof level is a soil pipe.
Of course, the codes do require a minimum of height and diameter (normally 4" to prevent hoarfrost) and depending if the roof is used for weather protection I have installed vent piping 7 feet above the roof to prevent sewer fumes from entering the structure and 7 feet is the min required for promenade roofing systems.
If you are talking about a roof water drain pipe to sewer it is illegal. If you are talking about a sink drain pipe well that is where they all connect to so yea.
Yes it can be shortened, making sure that the top of the vent is at least one meter above the highest point of the roof.
Rain has the potential to splash about 8 inches vertically. Check with the local fire code for the required height above a roof for a stove pipe. Typically fire codes will require the opening of the stove pipe to be at least 2 feet above the highest adjoining roof area.
Yes
The toilet vent pipe is typically located on the roof of a building, above the bathroom where the toilet is installed. It helps to release sewer gases and maintain proper air pressure in the plumbing system.
=== === ALSO if one had read model codes they do have a minimum height depending if the roof is used for weather protection or a promenade (24" above the roof surface if weather protection 7 ft if promenade)
It allows the drains to flow freely and the stench of the sewer to be sent to the highest point in the roof. That is why p-traps are installed, so the sewer gasses go to the roof vents and not through the water in the traps.
Yes. The roof vent is usally located on the roof. If the vent is clogged, it can create numerous issues and prevent your plumbing system from working properly.
Plumbing vents work by allowing sewer gases to escape outside the house through a pipe that extends above the roof. This creates a pressure balance in the plumbing system, preventing the gases from entering the house through drains or fixtures.