Sometimes such as in town homes or condos it s not possible to vent a dryer through a wall outside.
Dryer vent lint in attic.
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Venting a dryer into an enclosed space is never a good idea.
This product acts as a secondary lint trap for your electric clothes dryer.
The dryer duct lint trap will help save you money as well as reduce the risk of dryer fire by keeping your dryer duct clean and free of lint.
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.
This also means that you can t blow the dryer exhaust into the attic or the crawlspace.
A dryer vent should be vented outside.
One important way to control condensation is to maintain an upward slope on the vent pipe.
All that lint coming out the top means there s a whole bunch more down at the bottom and that s a fire hazard.
The photo below shows an accumulation of dryer lint in an attic after years of the vent terminating in it.
It s not a great idea to vent your attic like that but the lint is going to go out.
Its continued accumulation in an attic space can pose a significant fire hazard.
Venting dryers and bathroom and kitchen fans into an attic is a very poor practice.
I think what you need to do is have your dryer vent cleaned on a yearly basis so you reduce the amount of lint.
Laundry lint consisting primarily of cotton and synthetic fibers is obviously quite flammable.
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 problem with attics.
It introduces moisture heat and grease in a space that is not designed to receive them.
In these cases it may be necessary to vent your dryer through the attic.
Be careful you don t cut through any studs electrical wires or pipes in the process.
Can a dryer vent go up through an attic.
When venting dryers for long distances use rigid metal pipe with as few elbows as possible.
You must terminate your dryer vent outside the building according to section m1502 of the irc.