Such boot assembly is just not going to work well two inches from a chimney.
Pipe against roof distance between.
A length double the pipe diameter is considered appropriate for the part pointing downward.
The spacing between the 2 lines 255 mm.
Spacing between pipes on a pipe rack larger spacing may be required if pipes have clamped supports.
Typical formula for spacing is as follows.
To operate properly and safely each drain must be served by a vent line that carries sewer gases out through the roof.
To arrive at spacing between two pipes of different flange ratings refer to tables of both pipes and use the larger of the two distances.
Some vent pipes are galvanized iron.
For high density polyethylene hdpe the spacing would vary from 7 ft for 4 pipe with sdr diameter over thickness of 11 0 to 16 ft for 24 pipe.
Tim l thank you for your question.
To determine spacing between 150 nb pipe 150 flange rating and a 100 nb pipe with 600 flange rating.
Chimney and vent are near the ridge peak of the roof.
Between the outlet and any restriction e g.
Though some old homes may have pipes made of lead most drain piping is abs plastic cast iron or copper.
The roof or a wall the minimum distance must be 100 cm.
For 100 nb pipe and 150 nb 150 flange rating spacing 230 mm.
Always maintain the distance between supports as per project specification recommended support span table.
A typical roof vent pipe is equipped with a sealing boot affixed to a flashing plate that is normally about 12 wide and about 16 dimension in the roof slope direction.
Consider the maximum distances from 2 cases.
Our vent pipe is located about 15 inches from the chimney.
Two feet or 24 is a code interpretation for distance between plumbing vent stack rooftop termination and the top of a chimney that is less than 3 ft.
For 150 nb pipe and 100 nb 600 flange rating spacing 255 mm.
Sinks lavatories bathtubs and laundry tubs may be served by 1 1 4 to 2 inch pipes.
It is applicable to straight run pipe length only when a change of direction in a horizontal plane occurs it is suggested that the spacing be limited to times the standard pipe span.
Spacing half od of a flange which is larger between two pipes half od of other pipe insulation thickness of both pipes 25 mm or 1 inch.