The roof contractor recommends the soffit to minimize protrusions through the roof.
Vent through roof or soffit.
This reduces the efficiency of the vent and may trap heat or moisture in the elbows.
A down through soffit exhaust vent design by leaving warm air in the exhaust duct when the fan is off creates a heat trap that reduces heat loss out of the bathroom through the exhaust fan duct when the fan is off in comparison with up routed vents or even horizontal vents through a gable end wall.
Make the vent hole 1 2 in.
A vent through the roof must terminate a minimum of 6 inches above the roof surface or 6 inches above any anticipated snow accumulation.
Not a good thing.
Butt a cardboard template against the fascia and mark your soffit hole locations to begin soffit vent installation.
For most homes the most popular and a better looking roof vent option is a soffit vent.
Smaller on each side than the vent you re installing.
They are usually easy to remove and cut holes through.
If an exhaust vent is too close to an intake some of that moist warm air is headed in to the attic.
And given the expectations for soffit venting and roof venting these days if an attic space is properly vented it would almost for sure preclude the soffit venting of any exhaust.
One of the most used or popular roof vents is a turbine vent that has spinning tops.
Add soffit venting first.
When a vent terminates directly below a window door or air intake it must be.
However in order to make the turns necessary to penetrate the ceiling enter the attic and then descend through the soffit ductwork must make some tortuous bends.
Why not run vents through the soffit.
Mark holes for soffit venting.
Turbine or rotary vents are often seen in industrial buildings commercial spots or restaurants.
I am getting a new roof installed and tear off and likely a lot of plywood and am simultaneously getting a new bath vent fan.
I have gotten mixed opinions on whether to vent the new fan through the roof or through the soffit eave.
A soffit vent is a type of roof vent.