Installing Dryer Vent Through Attic

Attach the sections together with metallic duct tape rather than sheet metal screws to prevent lint buildup.

Installing dryer vent through attic. Push the lower elbow onto the dryer and the upper elbow onto the vent cap and then measure the distance between the two including the overlap at each end. Attach the roof vent to the duct that is from the top of the roof. 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.

You will then install the dryer vent through the hole that you have just made. Doing so would fill your attic with warm moist air that could rot the framing. Considering that back pressure higher than 6 wci is generally recognized as inefficient you can see that venting through the roof with non dryer specific vents is immediately problematic.

Vent the dryer with 4 in. Now you re ready to run the dryer duct from the dryer to the vent cap. Dallas home inspection greg house trec 9986 shows attic with plastic hung to cover from disconnected dryer vent.

This video will show you how to install a new clothes dryer vent through a laundry room wall to the outside. Cut assemble and tape the straight pieces photos 7 9. 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. The less back pressure is created by the roof vent the more efficiently the system performs. When venting dryers for long distances use rigid metal pipe with as few elbows as possible.