Dryer Vent Thru 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 vent thru attic.

Continue the ductwork horizontally through the attic to the closest exterior wall. When bath fans and clothes dryers vent through the roof they melt a bunch of snow. While elbows and length of run are important factors for efficiency and safety the exhaust termination is often the biggest restriction point. Often going straight up through the roof is the shortest route.

Sometimes such as in town homes or condos it s not possible to vent a dryer through a wall outside. In these cases it may be necessary to vent your dryer through the attic. A dryer vent should be vented outside. Doing so would fill your attic with warm moist air that could rot the framing.

Seal the ceiling penetration so that the duct can expand in length as it heats up during use a standard roof boot such as you d use to flash a vent pipe would work. 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. For dryer venting use 4 inch smooth wall aluminum pipe. If you are installing a dryer vent through a finished wall remove a small section and check to be sure you won t be cutting through any wiring plumbing or ductwork.

When venting dryers for long distances use rigid metal pipe with as few elbows as possible. Be careful you don t cut through any studs electrical wires or pipes in the process. Metal duct going vertically from the dryer through the second floor ceiling. The international residential code allows you to run a dryer vent through the attic but you can t terminate it there.

Use a 4 1 4 inch hole saw to cut the vent opening. Vent the dryer with 4 in. In real world tests inefficient roof terminations would often all but negate the improved efficiency of eliminating restrictive elbows. After the snow melts below the vent it ll probably freeze again farther down on the roof.

But if it s running through a crawl space unheated basement attic or other unconditioned space where there s the potential for.