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(building construction)
A vertical pipe that leads water from a roof drain or gutter down to the ground or a cistern. Also known as downcomer; leader.


A vertical pipe that carries water from the roof gutters to the ground or cistern.

downspout, conductor, downcomer, downpipe, leader, rain leader, rainwater pipe

A vertical pipe, often of sheet metal,
References in periodicals archive ?
3 Consider burying the downspouts and drainpipes to prevent environmental damage.
Use the new 3 x 4-in, drop outlet that you buy with your new downspout as a template to trace an outline for the larger hole.
The only other addition to the system was to add wire mesh over the top of the downspout to keep out leaves.
Whether you're installing new gutters or already have them, be sure the downspouts have 4- to 6-ft.
Another design takes water from a downspout through a plastic pipe with holes punched in it, allowing water to seep back into the soil.
Attach an extension to your downspout to channel water farther away from the house.
Pulling off downspout extensions and jamming them back on is a nuisance when you're mowing.
Here's a way to unplug a downspout without climbing a ladder: Wait a day or two after rain to let all the water seep past the clog and out of the downspout.
provide and install a new 2" x 3" aluminum downspout at the southeast corner of the garage.