Roof Venting For dryer efficiency and safety, the shortest and straightest ducting route is always best. Every turn increases friction loss (unless you use non-restrictive elbows). Air velocity reduction from friction loss promotes lint build up and makes the dryer work harder to completely dry each load.

Should you vent a dryer through the roof?

Dryer vents should always be vented through the side of the house and not vented through the roof, and ideally, the exit should be fairly close to the ground. Keeping a clean dryer vent is much easier when you can safely reach the exit. These terminals need to be cleaned on a regular basis to prevent lint buildup.

What type of dryer vent is best?

Semi Rigid Metal Dryer Duct

If you need flexible duct, this is the best choice. It has smaller ridges inside for better airflow and less lint buildup. It also withstands fire better than other flexible duct.

What does a dryer vent on roof look like?

Quote from the video:
Quote from Youtube video: There's a flapper in here these are really designed for bathrooms. And kitchen fans where it's not pushing lint out just warm moist air.

Is it safe to vent a dryer into the attic?

Venting a dryer into the attic is an unsafe practice. The moist dryer air can cause structural damage, electrical damage, the growth of mold and bacteria, and lead to the infestation of disease-carrying rodents. Dryer exhaust also contains harmful gases. Lint can build up, and this is a fire hazard.

Should dryer vent be insulated in attic?


But if it’s running through a crawl space, unheated basement, attic or other unconditioned space where there’s the potential for freezing, then it is recommended to insulate the duct.

Can you vent a dryer through a soffit?

You can vent a dryer through the soffit area as long as its exhaust vent is at least 3 feet away from any intake vents and it is capped properly to prevent any rodents from getting in.

Does dryer vent need to be aluminum?

Dryer venting tips and practices

Flexible transition hose between the dryer and the wall outlet should be either the foil type or the aluminum flexible duct (most preferred). Do not use the plastic or vinyl. Concealed ducting must be rigid metal (galvanized or aluminum) duct.

Is PVC OK for dryer vent?

While using PVC for some venting applications is acceptable, you should not use PVC to vent a dryer. PVC has a maximum temperature rating of 140 degrees. Dryer exhaust output can range from 130 to 165 degrees. PVC can buildup a static charge that can ignite lint buildup and cause a fire.

What is code for dryer vent?


The maximum developed length of a clothes dryer exhaust duct shall not exceed 35 feet from the dryer location to the wall or roof termination. The maximum length of the duct shall be reduced 2.5 feet for each 45-degree (0.8 rad) bend, and 5 feet for each 90-degree (1.6 rad) bend.

Where is the best place to vent a dryer?

It’s best to route the dryer vent in a horizontal path to the home’s outside wall. All horizontal runs should pitch 1/4-inch per foot to the outside. This will help to avoid moisture from sitting in the pipe or draining back to the dryer.

How do you clean a dryer vent on the roof?

You can use a plastic garbage bag, go on the ladder to the roof and remove the dryer vent screen. You can also pull the dryer away from the wall and vacuum it and use a specific type of brush. It is a multi-step process that you may be able to do on your own or need to call a professional for assistance.

How do you run a dryer vent into the attic?

Be careful you don’t cut through any studs, electrical wires, or pipes in the process. 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. When venting dryers for long distances, use rigid metal pipe with as few elbows as possible.

How do I vent my dryer into the attic soffit?

Quote from the video:
Quote from Youtube video: Using either a jigsaw or tin snips feed the duct through the soffit opening and attach it to the soffit dryer vent using a four inch worm drive clamp push the duct and soffit vent into the opening.

Can dryer vent run horizontal?

Runs should be horizontal with a slight downward angle if at all possible to allow any condensation from water vapor in the exhaust air to drain. The duct length from the wall to the outlet terminal should be no more than 35 feet, including equivalent length for any fittings.

How do I vent my dryer in the middle of the house?

Quote from the video:
Quote from Youtube video: You know it's not being not being on an exterior wall how do you vent it so vit the dryer that is so what I ended up doing was venting it down through the floor.

Does dryer vent need to slope?

A best practice is to have the exhaust terminal located so that the exhaust duct will run horizontally with a slightly downward slope (1/4-inch per foot) to reduce the possibility that condensation will form.

Can you run a dryer vent vertically?

Can You Vent a Dryer Vertically? You can vent a dryer vertically as long as you don’t exceed a distance of 35 feet in length. The preferred way to vent a dryer is downward or laterally but vertically is indeed an option.

What happens if you can’t vent your dryer outside?

Improper venting of a dryer typically results in moisture being deposited in various areas of the room. Moist air serves as a breeding ground for mold-and-mildew when it condenses on different surfaces. You want to exhaust the warm air outside the home rather than indoors to properly vent your dryer.

Is it OK to vent a dryer into the garage?

If you have a gas-fired dryer, it’s not only a bad idea to vent it into your garage, it’s potentially deadly. Gas-fired dryers eject small amounts of carbon monoxide, and it’s critical that they’re properly vented to the outdoors.

How do I find my outside dryer vent?

Find your dryer’s exhaust vent on the back of the appliance. Gently pull the vent pipe away from the wall duct. If your dryer is electric you should be able to push the appliance out of the way without any issues. This will open up more space to work.