Fine mesh on a dryer vent hood traps lint
Dryer vent
When the outdoor dryer flap looks open but airflow is weak, check for decorative fine mesh or screens that cake with lint.

If the hose behind the dryer looks fine but the outdoor puff is weak, look at the hood hardware — not just whether the flap moves. Decorative covers and fine insect mesh are a common slow-dry cause.
Check the mesh, not only the flap
- Run a short cycle and watch the exterior hood.
- If lint is pasted across a tight screen, or a fancy cover barely cracks open, that screen is acting like a second lint trap.
- Prefer a purpose-made dryer hood with a smooth interior and a light flap. Coarse pest guards designed for dryers beat stuffing window screen into the opening.
Clear loose lint from the hood, then confirm warm air moves freely. For a flap that stays shut from packed lint alone, see Outdoor dryer vent flap stuck closed.
Honest stop
Roof caps, long vertical runs, or a path you cannot see from both ends belong with a technician — do not climb a steep roof alone for a mesh check.
More help
- Same niche: Brush dryer vent cleaning toward the outside · Dryer vent cleaning — check the hose is not crushed after you push the dryer back · Check the indoor dryer vent lint trap screen · Dryer takes two cycles — vent checklist · Dryer vent brush kit vs calling a technician · Dryer vent cleaning household safety list · Dryer vent cleaning — feel outdoor air during a cycle · Dryer vent cleaning — seal duct joints with foil tape, not screws · Dryer vent cleaning — phone camera peek before you brush · Leave clearance so the dryer hose is not crushed · Dryer vent cleaning — mark the outdoor hood with the clean date · Dryer vent cleaning — iced outdoor flap vs lint cake first · Outdoor dryer vent flap stuck closed · Dryer vent cleaning — skip pest mesh outdoor hoods · Dryer vent cleaning — replace foil before hard brushing · Dryer vent cleaning — reverse-brush short runs only · Rigid vs foil dryer duct · Dryer vent cleaning — soft vs stiff brush head after foil is gone · Dryer vent cleaning — spin the outdoor flap free after you clean · Dryer vent cleaning — tissue flutter at the outdoor hood · Dryer vent — trim plants away from the outdoor vent hood · Dryer vent cleaning — vacuum the dryer’s back exhaust port too · Dryer vent — wash the lint screen when dryer sheets leave a film · All dryer vent guides
- Related fixes elsewhere: Furnace filter arrow must face the airflow · Read furnace filter size before you buy