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.
How to check dryer vent on roof.
Turn your dryer on.
Next pull the lint wand out of the vent to finish loosening and removing any duct blockage.
Also locate the dryer exhaust vent at your home s exterior.
Dryerjacks are the first roof vents designed to meet the more stringent venting requirements of dryer exhaust systems.
Brush it down using this dryer vent cleaning kit.
At this point now that your dryer is not connected to any power sources it is safe to work on your dryer vent.
It s always a good idea to inspect the termination port of the dryer duct along with the wall or roof cap.
Doing so would fill your attic with.
This may lead to leaks and other costly damage.
Unlike the vents shown above left the dryerjack affects airflow by less than 01 water column inches of pressure.
Take an extendable brush wand made for cleaning dryer vents and stick in the opening of the dryer duct.
Before dryer vent cleaning locate the vent which should be easily found at the back of the dryer.
A better roof termination.
Go up to the attic and disconnect where it s making the first turn.
There should be clamps that connect the exhaust pipe of the dryer to the vent.
Birds tend to build their nests in these and they may become clogged by other means.
Use a screwdriver to release these so that you can vacuum.
You now have a clean dryer vent.
Before climbing up to the roof get behind the dryer to vacuum out the vent.
The first step on how to clean a dryer vent is to unplug the dryer.
Now it is time to remove the vent cover near your dryer so that you can clean out any debris that has accumulated inside.
Connect it back and go to the second turn.
If you have a gas dryer turn the supply valve off while cleaning.
Do the same thing brushing towards the first turn.
Remove excess lint from the vent with a wand.
Step 2 remove the dryer vent cover.
Connect back and perform the same procedure at the third turn.
The international residential code allows you to run a dryer vent through the attic but you can t terminate it there.
You can put the tube of the vacuum directly up the vent.
Go to the back of your dryer moving it if necessary.
When it does a roof based dryer vent can contribute to damaging the roof.
Check for the proper exit velocity of the air escaping the vent and try to look and feel the interior walls of the duct.