Venting Clothes Dryer Through Roof

When venting dryers for long distances use rigid metal pipe with as few elbows as possible.

Venting clothes dryer through 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. Vent a dryer through the roof only as a last resort. To make the dyer more efficient you can buy an inexpensive heat diverter and install it in the exhaust duct of electric dryers only not gas dryers you ll save about 50 worth of heat per load in the winter. Check with your appliance dealer or local building inspector for recommendations about the best roof vent cap to use.

Clothes dryers should be vented through the side of the house preferably within reach from the ground. If washers and dryers are located within an interior room the dryer ductwork can vent through the roof but this type of dryer vent installation should be avoided whenever possible because cleaning the opening is difficult. 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. 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.

Cleaning lint buildup from roof vents is difficult and nesting birds and squirrels often find roof vent caps irresistible. As soon as i m in charge there will be no more venting of clothes dryers through the roof. Keeping a clean dryer vent is much easier when you can safely reach the exit. 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.

But we don t recommend it for two reasons. Venting the dryer outside in cold weather wastes a lot of heat. Clothes dryers should be vented out the side of the house preferably at ground level as god intended. When bath fans and clothes dryers vent through the roof they melt a bunch of snow.

Unlike the vents shown above left the dryerjack affects airflow by less than 01 water column inches of pressure. 2 cut the vent hood opening after locating the shortest route for the ductwork determine the location of the dryer vent.