Dryer Vent Terminates In Attic

Terminating the shorter duct run with a dryerjack helps venting through the roof deliver on the promise this shorter route offers.

Dryer vent terminates in attic.

That is the old material type tubing simply ended by a overhang side of the house where it exhaused into the attic and not outside. When our dryer was replaced we decided to bring the dryer venting system early 1960 up to code by replacing the tubing that vented into the attic. In these cases it may be necessary to vent your dryer through the attic. You must terminate your dryer vent outside the building according to section m1502 of the irc.

For medium snowfall zones and or higher profile roof tiles select the larger model 486 which is as efficient but taller. Peter green feb 17 17 at 15 40. The exterior cover should not have a screen since it will cause lint build up and block the vent over time. No you shouldn t use a towel or other absorbing material.

A dryer vent should be vented outside. Insulating the duct may also help. Or you may have a distance issue. Dryer ventilation systems should only terminate to the home s exterior and have a proper dampered exterior cover to help prevent water birds and insects from entering the duct.

While the manufacturers of aavs say they can be used to terminate your vent stack inside of your attic it seems pretty hacky if you have easy access through the roof. Otherwise rotting waste can cause pressure to build up in the system until it forces it s way past a trap. You may have a bad boot around the roof vent that is leaking into the attic. Not all dryers will allow for this so be sure to check the owners manual to ensure it can be vented in this manner.

Dryer lint is also highly flammable. 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. Sometimes such as in town homes or condos it s not possible to vent a dryer through a wall outside. The international residential code allows you to run a dryer vent through the attic but you can t terminate it there.

This also means that you can t blow the dryer exhaust into the attic or the crawlspace. While a thin layer of dust is satisfactory a coating of cotton lint on a surface is even better.