Can Dryer Vents Go Down

Above: a clothes dryer exhaust vent installed in a mobile home can be vented down through the crawl space and outside through the skirting wall, but must never be vented to terminate right in the crawl space.

Can dryer vents run vertical?

DEAR BOB: A vertical dryer vent is typically a problem because it acts as a moisture condenser. The sheet metal duct is cooled by the outside air in the attic. … When a laundry is situated near the center of a home, especially if there is a slab foundation, a vertical duct is often the only option for ventilation.

Can a dryer vent be squished?

Having flexible duct long enough to reach the outlet would make this easy but once the dryer is pushed back against the wall, the duct tends to get squished. … New international standards advise not using flexible ducts. They collect more debris and can be easily crushed.