Because all types are sold for use with dryers you would naturally assume that all are suitable for this application.
Dryer vent hose in attic.
After locating the shortest route for the ductwork determine the location of the dryer vent exit.
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You may have a bad boot around the roof vent that is leaking into the attic.
No you shouldn t use a towel or other absorbing material.
Metal duct going vertically from the dryer through the second floor ceiling.
If venting outside isn t an option you can vent the dryer out of the attic through the roof using a special roof vent to keep rain out.
The high humid air doesn t vent out of the house before it condensates in the duct and then runs back into the house causing damage.
Be careful you don t cut through any studs electrical wires or pipes in the process.
Or you may have a distance issue.
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A dryer vent should be vented outside.
Doing so would fill your attic with warm moist air that could rot the framing.
Not all dryers will allow for this so be sure to check the owners manual to ensure it can be vented in this manner.
The international residential code allows you to run a dryer vent through the attic but you can t terminate it there.
When installing a dryer vent for laundry centers in basement locations keep in mind that the vent hood on the exterior of your home must be at least 12 inches from the ground.
In these cases it may be necessary to vent your dryer through the attic.
Venting a dryer into an enclosed space is never a good idea.
The photo below shows an accumulation of dryer lint in an attic after years of the vent terminating in it.
Vent the dryer with 4 in.
Insulating the duct may also help.
Dryer vent pipes properly called vent ducts come in a variety of materials.
When venting dryers for long distances use rigid metal pipe with as few elbows as possible.
Most dryer ducts are round and 4 inches in diameter.
Sometimes such as in town homes or condos it s not possible to vent a dryer through a wall outside.
Use a section of vent pipe to mark a circle where the opening will be from inside of your home.