While screens are regularly included in most other vent caps to protect against pest intrusion the lint that dryer exhaust carries with it creates lint buildup that other exhaust systems don t face.
Roof dryer vent screen.
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This vent features a heavy duty screen which helps protect against small animals from entering your home through the vent.
If the vent does not have this feature it should be replaced.
It s made of zinc coated galvanized steel for durability and reliability.
Your dryer vent behind the screen should have a louvered flap that swings open when the airflow from the dryer opens it and then falls back into the closed position when the airflow ceases.
Dryerjacks are the first roof vents designed to meet the more stringent venting requirements of dryer exhaust systems.
Unlike the vents shown above left the dryerjack affects airflow by less than 01 water column inches of pressure.
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The black finish helps this vent blend into your home s rooftop.
Before climbing up to the roof get behind the dryer to vacuum out the vent.
You can put the tube of the vacuum directly up the vent.
This vent is designed to be used on 4 in.
There should be clamps that connect the exhaust pipe of the dryer to the vent.
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If your dryer vent does get pest nest in it i would recommend a large cage to install over the entire vent cap with larger holes for the lint to pass through.
With the lack of good roof vent options prior to the introduction of the dryerjack many savvy contractors would simply remove the screen.