Dryer Vent Terminates In Attic

Sometimes such as in town homes or condos it s not possible to vent a dryer through a wall outside.

Dryer vent terminates in attic.

So a dryer vent terminating in an enclosed and unconditioned space provides the heat moisture and organic material to create an ideal environment for mold growth. Peter green feb 17 17 at 15 40. Dryer lint is also highly flammable. At less than 5 1 2 above the roof plane it is also low profile for minimal visibility.

Your dryer only has the power to push that heavy wet lint so far so it s inevitable that some of it is going remain behind in the vent pipe. Otherwise rotting waste can cause pressure to build up in the system until it forces it s way past a trap. Solution sometimes simply finding the detached duct work and reattaching with code compliant ul listed metal tape is all that is needed. While a thin layer of dust is satisfactory a coating of cotton lint on a surface is even better.

Dryer vents don t need cleaning. Not all dryers will allow for this so be sure to check the owners manual to ensure it can be vented in this manner. 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. Doing so would fill your attic with warm moist air that could rot the framing.

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. The international residential code allows you to run a dryer vent through the attic but you can t terminate it there. A dryer vent should be vented outside. In these cases it may be necessary to vent your dryer through the attic.

For medium snowfall zones and or higher profile roof tiles select the larger model 486 which is as efficient but taller. You must terminate your dryer vent outside the building according to section m1502 of the irc. Other times you may need to hire someone to reroute the venting or install it correctly. Terminating the shorter duct run with a dryerjack helps venting through the roof deliver on the promise this shorter route offers.