Slide clamps over the flexible duct at both the roof cap and the fan housing then slip the clamps over the tailpieces.
Installing bathroom fan vent through roof.
Nail the lower corners with roofing nails and tar the heads.
Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic.
For optimum performance locate it between the shower and the toilet.
The lower half of the flange sits on top of the shingles.
Wrap the joints with duct tape.
Remove the tape from the fan first.
From the roof find the nail and use the utility knife to cut roof shingles from around the nail.
Draw a mark on the bathroom ceiling where you d like to install the vent fan.
Choosing a whole house fan.
One is to route it over to a soffit vent and attach it to the back of the soffit vent but this can work against your exhaust fan because that s actually an air intake so not as good as other methods.
Several different ways you can move that hot air to the outside.
Idea 5 connecting the duct to the bathroom fan.
Slide the vent under the shingles so they cover the top half of the vent flange.
How to vent a bath fan through the roof 1.
Check the damper and the screen in prior to installation.
Slide a flat pry bar underneath the.
You mount a switch in each bathroom.
This way we can make sure both are positioned properly.
Another method a little bit better is if you have a gable style roof and a gable vent on one end of the house you can attach this to the back of a gable vent.
Apply a bead of asphalt roof cement on the bottom of the vent.
We explain how to install bathroom exhaust fans or vents the vent ducting the vent termination at the wall soffit or roof vent fan wiring bath vent duct insulation bath vent lengths clearances routing and we answer just about any other bathroom ventilation design or installation question you may have.
How to install a bathroom fan vent in the soffit.
This setup requires an in line centrifugal fan mounted in the attic drawing air simultaneously from both bathrooms see photo.
Center the nail between.
A single exhaust exits through the roof figure a.
Next we must slip a worm drive metal clamp on the inside part of duct liner.