Brush it down using this dryer vent cleaning kit.
How do you vent a dryer through the roof.
Commercial vacuums are used to suck up as much lint and debris as possible from the inside.
If you will still want to give it a shot and clean by yourself here s what you should do.
Figures a b and c show the three most common paths from the dryer to the exterior.
Go up to the attic and disconnect where it s making the first turn.
Connect it back and go to the second turn.
You now have a clean dryer vent.
The first thing that we will do when cleaning a dryer vent that is vented through the roof is to disconnect the dryer and clean the inside vent.
Vent a dryer through the roof only as a last resort.
These terminals need to be cleaned on a regular basis to prevent lint buildup.
Terminating the shorter duct run with a dryerjack helps venting through the roof deliver on the promise this shorter route offers.
Keeping a clean dryer vent is much easier when you can safely reach the exit.
Do the same thing brushing towards the first turn.
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.
The position and curvature of the damper combined with hood size and collar placement optimize airflow to such a degree that laboratory tests confirm nearly zero reduction in airflow.
If possible position your dryer along an exterior wall to keep the vent as short as possible.
Connect back and perform the same procedure at the third turn.
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.