curb roof

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A roof having two slopes on each side, as a gambrel roof or a mansard roof.

from The Century Dictionary.

• noun In architecture, a roof in which the rafters, instead of continuing straight down from the ridge to the walls, are received at a given height on plates, which in their turn are supported by rafters less inclined to the horizon, whose bearing is directly on the walls.

from the GNU version of the Collaborative International Dictionary of English.

• A roof having a double slope, or composed, on each side, of two parts which have unequal inclination; a gambrel roof.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A gambrel roof.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a roof with two or more slopes on each side of the ridge