The flat roof is ideal for this type of vent as the vent can be situated directly above the bathroom ceiling.
Venting bathroom fan through flat roof.
This involves running ductwork from the fan usually though an attic and out through the roof.
And of course a bathroom with a window doesn t require an exhaust vent.
My interpretation is that you are not allowed to place a fan vent termination on a flat roof.
It also indicates that on sloped roof the termination should be elevated 18.
Start in the attic and drill a hole through the roof in the desired vent location.
8 aura vent.
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From inside the attic drive a nail through the roof directly above the bathroom vent fan.
Try to keep it close to the fan location.
How to vent a bathroom fan through flat roof.
Options for venting a bathroom exhaust fan include best to worst.
Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof.
Bathroom exhaust venting does not have to exit up through the roof and in fact that s not necessarily even the best termination.
Through the roof or an exterior gable wall.
Leave the drill bit sticking through the roof so you can find the hole.
There seems to be a lack of what is an acceptable venting configuration for a bath fan when you are forced to go through a flat roof.
From the roof find the nail and use the utility knife to cut roof shingles from around the nail.
Slide a flat pry bar underneath the shingles around the nail to break the weather seal.
An exhaust vent fan can exhaust out through a gable end side wall or out through a soffit overhang.
For a more low profile type of flat roof vent the aura vent is the ultimate choice.
In many homes with a sloped roof this can be a problem to install.
It is electrical powered and can also be driven by wind power.
It eliminates the need for routing ductwork through the house and these fans usually dry the bathroom more quickly.
Center the nail between two rafters.
By saum hadi posted on november 5 2018.