For optimum performance locate it between.
Exhaust fan soffit vent installation.
The additional vent assists with circulating the air which helps the fan do its job.
Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic.
This exhausts a greater volume of hot.
Next we must slip a worm drive metal clamp on the inside part of duct liner.
Measure the vent fan.
Installing a soffit vent is not difficult.
Remove the tape from the fan first.
Space the holes 12 to 14 in.
Check the damper and the screen in prior to installation.
In most cases a do it yourself enthusiast can install the vent in.
When the insulation was in place and cured we could trim the exhaust duct down extension to its proper length to permit first installation of the soffit covering solid plywood in this case as the roof is an un vented hot roof design and then the installation of the exhaust vent terminating cover.
Drill a reference hole draw a mark on the bathroom ceiling where you d like to install the vent fan.
How to install a bathroom fan vent in the soffit.
When passive methods aren t sufficient an electric fan installed at a soffit vent draws additional outside air into the attic to augment the chimney effect.
Screw holes through both flanges.