Slip the jack under the roof shingles at its upper half.
Run vent pipe thru roof.
Bath vent fan duct routing.
If any nails are not covered by shingles cover the heads with roofing cement.
This article describes routing bath exhaust fan duct upwards through an attic or roof space or downwards through a floor or crawl space.
This will have 2 toilets two showers two sinks and one tub off this single vent in case someone wants to comment on size.
Cut through the plywood and roofing material with your reciprocating saw.
Start in the attic and drill a hole through the roof in the desired vent location.
Go into your attic.
With the pipe in a vertical position.
The typical vent system consists of a network of pipes that connect to every drain p trap and extend via a main stack that pokes through the roof just above the main bathroom.
The lower half of the jack rests on top of shingles.
And the loop vent.
Follow the outline you marked out.
Look inside the vent opening and clear out any debris you find.
Position the vent pipe up to the bottom of the roof.
Remove the vent cover with the screwdriver and set it aside.
Up through roof down through floor or crawl area.
True vents also have no water running through them.
The true vent is aligned vertically and attaches to your drain line through the roof.
Is it acceptable to run 1 1 2 schedule 40 pvc through the roof for a new vent stack.
Poke the vent pipe up through the rubber flange.
Vent pipes run from waste or drain pipes upwards ending outside the building usually sticking up through the roof.
From up on the roof use a jigsaw or reciprocating saw to cut a 4 in.
To anchor the jack lift up some shingles and drive roofing nails.
I m trying to figure out what type pipe i need for terminating a vent stack in the roof.
Turn the water on before you bring the hose onto the roof.
How to install a vent pipe through a roof step 1.
Try to keep it close to the fan location.
Doing so would fill your attic with warm moist air that could rot the framing.
For one reason or another it may be impractical or impossible to construct this main vent through the roof so it s usually permissible to extend it from another part of the house.
In all cases the ducting needs to conduct the exhaust to the building exterior and needs to terminate in an animal proof vent cover.
This is best implemented if a fixture rests close to the stack and the top floor of your home allowing the stack to serve as a vent.
It lets air into the system filling the vacuums left by water moving through the pipe.
