Mark the ceiling back in the bathroom measure the inside dimensions of the vent fan s intake port to determine what size hole you need.
Installing bathroom vent to roof.
Apply a bead of asphalt roof cement on the bottom of the vent.
Slide a flat pry bar underneath the.
The warm air will exhaust out the duct and enter back into the attic through the soffit vent or ridge vent.
Choosing a whole house fan.
The roof cap was done for this stainless steel range hood installation https youtu be 7lvu7lg9zoe was installed a master flow 6 in.
Slide clamps over the flexible duct at both the roof cap and the fan housing then slip the clamps over the tailpieces.
From the roof find the nail and use the utility knife to cut roof shingles from around the nail.
Bathroom code does address the issue of moving odor and moisture laden air from the bathroom to the outside.
Wrap the joints with duct tape.
This article describes routing bath exhaust fan duct upwards through an attic or roof space or downwards through a floor or crawl space.
Letting the fan exhaust into an open attic will cause moisture buildup on the underside of the roof.
If you have any questions or comments at all please comme.
This video is a comprehensive rundown on how to install a roof vent on a pre existing shingle roof.
Use a layout square or framing square to draw the.
Use the reference hole as a landmark to transfer your measurements from the attic to the ceiling.
Nail the lower corners with roofing nails and tar the heads.
From inside the attic drive a nail through the roof directly above the bathroom vent fan.
The lower half of the flange sits on top of the shingles.
How to vent a bath fan through the roof 1.
Slide the vent under the shingles so they cover the top half of the vent flange.
Avoid venting through a soffit vent or ridge vent.
If you have access to the attic the fan can vent either through a gable wall or roof.
Center the nail between.
Goose neck vent roof.
Surprisingly bathroom fans are not required by some building codes.