Cleaning lint buildup from roof vents is difficult and nesting birds and squirrels often find roof vent caps.
Dryer vent through roof or wall.
Use a 4 1 4 inch hole saw to cut the vent opening.
Additionally squirrels and birds often nest in the roof vent caps of roof dryer vent.
If you are installing a dryer vent through a finished wall remove a small section and check to be sure you won t be cutting through any wiring plumbing or ductwork.
Difficulty cleaning dryer vent.
Vent a dryer through the roof only as a last resort.
Dryer vents should always be vented through the side of the house and not vented through the roof and ideally the exit should be fairly close to the ground.
If possible position your dryer along an exterior wall to keep the vent as short as possible.
A roof dryer vent will require that your dryer push a gallon of water lint and hot air vertically for many feet at least 18 if you have any kind of an attic and many homes that have a roof dryer vent have 20 to 30 feet of vertical pipe.
Keeping a clean dryer vent is much easier when you can safely reach the exit.
Transfer that measurement inside if necessary to mark the new dryer vent center.
Figures a b and c show the three most common paths from the dryer to the exterior.
The vent should exit the building through the roof or wall at least 3 feet away from any other building openings and the vent cover which must not include a screen should allow dispersal of.