Can You Run A Dryer Vent Straight Up

Ad i attached a second 90 degree fitting to this vertical pipe above the back of the dryer using more screws.

Can you run a dryer vent straight up.

Now you re ready to run the dryer duct from the dryer to the vent cap. The easiest way to vent it was straight up about 6 into the attic then a right turn in the attic 12 out the back of the house. Cut assemble and tape the straight pieces photos 7 9. I then extended a piece of solid pipe straight up the back of the dryer from this fitting.

Doing so would fill your attic with warm moist air that could rot the framing. The longer the run the more friction loss is created which is why building code restricts total run length. Don t vent your clothes dryer through the roof. Great site dealing in all aspects of vent maintenance cleaning and solutions.

The vent becomes clogged with lint and. Air velocity reduction from friction loss promotes lint build up and makes the dryer work harder to completely dry each load. When using a straight piece of flexible metal vent hose the maximum length allowed for safe ventilation is approximately 30 feet according to the appliance aid website. Often going straight up through the roof is the shortest route.

This causes two problems. Length of run also reduces efficiency. The only reason that people vent dryers into water is to contain the lint so it doesn t fly. When a dryer is in operation it s removing moisture and lint and venting it to the outside.

So the dryer has to vent vertically up through the roof. Exhaust systems longer than the manufacturer s recommendations can extend drying times affect appliance operation and may encourage lint build up on pipe lining. I had an appliance repair guy out to help with some propane connection issues and he said we shouldn t ever vent a dryer up as it makes it a lot more likely to accumulate lint. The international residential code allows you to run a dryer vent through the attic but you can t terminate it there.

The laundry is located in the middle of our home in a hall closet. Dryer vent hoses that are run in a straight line from the dryer exhaust to the outdoors provide the best ventilation and reduce the likelihood of trapped lint. More dryer vent cleaning information can be found here. I think the roof is a stupid spot to terminate clothes dryer vents because it s difficult to clean and it s a major contributor to ice dams.