I think the roof is a stupid spot to terminate clothes dryer vents because it s difficult to clean and it s a major contributor to ice dams.
How should dryer be vented on roof.
Remove the guard to the dryer vent on the roof.
Clothes dryers should be vented out the side of the house preferably at ground level as god intended.
Once in the attic it tips to maybe 30 degrees from vertical and continues up to a roof vent.
Clothes dryers should be vented through the side of the house preferably within reach from the ground.
As soon as i m in charge there will be no more venting of clothes dryers through the roof.
When bath fans and clothes dryers vent through the roof they melt a bunch of snow.
You can remove some of this with your hands.
I can stand in the attic but it is one which is accessed via a pull down trap door and the floor is just some bits of plywood here and there.
I had to modify the length of the dryer vent pipe and was stunned when i took it apart.
Difficulty cleaning dryer vent.
When you get on the roof you should find that the vent is covered by a guard.
Check with your appliance dealer or local building inspector for recommendations about the best roof vent cap to use.
If you can remove it.
This may lead to leaks and other costly damage.
If their dryer vent goes out the roof then they need to get it cleaned at least once a year and can cost anywhere from 150 to 300.
If the vent goes out the sidewall.
A better roof termination.
When it does a roof based dryer vent can contribute to damaging the roof.
Dryerjacks are the first roof vents designed to meet the more stringent venting requirements of dryer exhaust systems.
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.
Unlike the vents shown above left the dryerjack affects airflow by less than 01 water column inches of pressure.
Since many laundry rooms are located in the middle of the house and so many homes are single story with easy to walk on roof slopes about 6 12 venting the dryer to the roof makes the most sense shortest run with least amount of elbows.
Venting dryers to a roof termination or roof cap is very common in the south.
Vent a dryer through the roof only as a last resort.
You might find that there are gobs of lint stuck on in.