Dryer Exhaust Duct Through Roof

The international residential code allows you to run a dryer vent through the attic but you can t terminate it there.

Dryer exhaust duct through roof.

It is not advisable to vent a dryer through the roof. Dryer manufacturers recommendations supersede this so if you have to make a longer run read the owner s manual. Doing so would fill your attic with warm moist air that could rot the framing. If your laundry room has access to an outside wall cut a hole and install a standard dryer vent.

For every 90 degree turn and 2 1 2 feet for every 45 degree turn for dryer vent installation. First you ll partially block your roof vent with the piping reducing the flow of cooling air through your attic. The first thing that we will do when cleaning a dryer vent that is vented through the roof is to disconnect the dryer and clean the inside vent. Second during cold winters you ll be blowing warm moist air onto a cold surface the roof vent and roof plywood.

If their dryer vent goes out the roof then they need to get it cleaned at least once a year and can cost anywhere from 150 to 300. Be careful you don t cut through any studs electrical wires or pipes in the process. Terminating the shorter duct run with a dryerjack helps venting through the roof deliver on the promise this shorter route offers. If the vent goes out the sidewall then it s something they.

Cleaning the inside vent. If you re tempted to vent your exhaust fan through an existing roof vent or even vent it into the attic don t do it. At less than 5 1 2 above the roof plane it is also low profile for minimal visibility. For medium snowfall zones and or higher profile roof tiles select the larger model 486 which is as efficient but taller.

Use no more than 25 ft. This is one of the most common mistakes we see from people who are not experienced with air ducts. Commercial vacuums are used to suck up as much lint and debris as possible from the inside. Dryer duct through roof this arrangement will work fine at first but just like dryer vents that go through the side of the house the terminal will eventually get clogged with lint.

Here are the steps that we at dust doctors follow when cleaning a dryer vent on your roof. Duct and subtract 5 ft. For example a dryer with a 90 degree elbow at the exhaust port and another at the top of the basement wall can run a maximum of 15 ft. 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.