If you vent through a soffit where attic vents are often located the moisture will get sucked back up into the attic or roof venting.
Install bathroom fan roof vent.
Nail the lower corners with roofing nails and tar the heads.
The master bathroom and the 2nd bathroom vent through the roof and through the same opening.
Install the roof vent install the roof vent by sliding the top flange under the shingles above it and resting the bottom flange on the shingles below.
Secure the vent flanges with roofing nails before installing the shingles.
Apply roofing adhesive on the underside of the flanges to seal.
The 2nd bathroom vent drips on the floor and is ruining the ceiling.
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Slide the vent under the shingles so they cover the top half of the vent flange.
If you vent through the roof condensation will drip back into the interior.
Plenty more videos t.
For optimum performance locate it between the shower and the toilet.
Apply a bead of asphalt roof cement on the bottom of the vent.
Draw a mark on the bathroom ceiling where you d like to install the vent fan.
I recommend that my clients vent their bath fans out a gable wall if at all possible when not using an hrv or erv that is.
Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic.
The lower half of the flange sits on top of the shingles.
Center the nail between two rafters.
The 2 pipes one a 4 master and the other a 3 2nd do not go through the ceiling but into a common box that goes through the roof.