Outside Dryer Vent On Roof

Vent dryers outside venting the dryer outside in cold weather wastes a lot of heat.

Outside dryer vent on roof.

Run your dryer until no debris comes out of the outer vent making sure that the air flow is not restricted. Vent a dryer through the roof only as a last resort. Cleaning lint buildup from roof vents is difficult and nesting birds and squirrels often find roof vent caps irresistible. 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.

Connect your dryer to its power sources and turn it on. Check with your appliance dealer or local building inspector for recommendations about the best roof vent cap to use. Once you have done this turn off your dryer. The problem with attics the attic is usually colder than the rest of the house during the winter and that can create a problem for a dryer vent.

Dryerjacks are the first roof vents designed to meet the more stringent venting requirements of dryer exhaust systems. But we don t recommend it for two reasons. Unlike the vents shown above left the dryerjack affects airflow by less than 01 water column inches of pressure.