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 vent a gas dryer through the roof.
At less than 5 1 2 above the roof plane it is also low profile for minimal visibility.
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.
Clothes dryers should be vented through the side of the house preferably within reach from the ground.
Venting the dryer outside in cold weather wastes a lot of heat.
The length of the run should be no more than 25 feet.
The route should be as short as possible but there are other guidelines to follow when venting a dryer.
But we don t recommend it for two reasons.
Check with your appliance dealer or local building inspector for recommendations about the best roof vent cap to use.
The first step of installing a dryer vent in a new location is to map out a path for the ductwork.
For medium snowfall zones and or higher profile roof tiles select the larger model 486 which is as efficient but taller.
When bath fans and clothes dryers vent through the roof they melt a bunch of snow.
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.
Difficulty cleaning dryer vent.
Terminating the shorter duct run with a dryerjack helps venting through the roof deliver on the promise this shorter route offers.
Before you clean a dryer vent on the roof vacuum out the vent behind the dryer since it s easier to clean out the length of the vent from the ground floor.
These terminals need to be cleaned on a regular basis to prevent lint buildup.
To make the dyer more efficient you can buy an inexpensive heat diverter and install it in the exhaust duct of electric dryers only not gas dryers you ll save about 50 worth of heat per load in the winter.
Cleaning lint buildup from roof vents is difficult and nesting birds and squirrels often find roof vent caps irresistible.
Once the vent is exposed use a vent brush first clean the exterior surfaces.
Then get on the roof and peel back any shingles that may be covering the vent as well as the guard.
Keeping a clean dryer vent is much easier when you can safely reach the exit.
Vent a dryer through the roof only as a last resort.