a roof having no slope, or with only a slight pitch so as to drain rainwater

a roof sloping downwards in two parts from a central ridge, so as to form a gable at each end

having sloping ends and sides meeting at an inclined projecting angle

having a hipped end truncating a gable; essentially a gable roof with the two peaked ends are clipped off

hybrid of a gable and hip roof; a full or partial gable can be found at the end of the ridge in the roof

roof divided on each side of the ridge into two or more slopes, as a gambrel or a mansard

roof having two slopes, each descending inward from the eaves

roof or ceiling having a semi-cylindrical form

gable roof in the form of a Gothic arch, with gently sloping convex surfaces

formed of six triangular identically pitched roof panels and six supporting rafters.

roof in the shape of a dome

roof having a single slope; also called a Skillion

shed roof with the higher end abutting a wall or a larger building

double-pitched roof; essentially a double gable

rests on two bearing walls with two sloping walls meeting in the middle to form an 'M' shape

composed of a series of small parallel roofs of triangular cross-section, usually asymmetrical with the shorter slope glazed

essentially a mansard roof in reverse; also known as kicked eaves, this roof has four sides with a steep upper slope, and a more gentle lower slope, providing cover around the edges of the house for a porch

two or more gable roof ridges that intersect at an angle, most commonly perpendicular to one another

four sloping surfaces, with two joined on a common ridge, and the other two on either end of the central ridge

an asymmetrical design in which one side of the roof, with the other side more of a lean-to, creating a gable in the middle

roof ridge is in line with the building's entrance

have two sloping sides that meet to form a ridge, with a triangular extension on either side that is boxed off from the walls

identical to a box gable roof but the ends are left open to meet the walls directly

roof having on each side a steeper lower part and a shallow upper part

ridged roof divided on each side into a shallower slope above a steeper one

a horizontal line of intersection at the top between two sloping planes in a roof

an intersection of two inclined roof surfaces toward which rainwater flows

the inclined projecting angle formed by the junction of two adjacent sloping sides of a roof

the overhanging lower edge of a roof

the underside of an overhanging roof eave

a projecting structure built out from a sloping roof, usually housing a vertical window or ventilating louver

the inclined, usually projecting edge of a sloping roof

a structural frame based on the geometric rigidity of the triangle and composed of linear members subject only to axial tension or compression

truss having parallel top and bottom chords; not as efficient as pitched or bowstring trusses; also called parallel-chord truss

truss having inclined top chords

most commonly used truss; pertaining to a flat or pitched truss having vertical web members in tension and diagonal web members in compression

pertaining to a flat or pitched truss having vertical web members in compression and diagonal web members in tension

includes vertical members and diagonals that slope downwards towards the center; the opposite of Howe Truss)

pertaining to a pitched truss having only inclined web members

pertaining to a flat or bowstring truss having inclined web members forming a series of equilateral triangles; vertical web members are sometimes introduced to reduce the panel lengths of the top chord which is in compression

a Belgian Truss having sub-diagonals to reduce the length of compression web members toward the centerline of the span

a truss having a curved top chord meeting a straight bottom chord at each end

a pitched truss having tension members extending from the foot of each top chord to an intermediate point on the opposite top chord

a truss having both top and bottom chords curving upward from a common point at each side; also called camelback truss

characterized by the radiating lines of the king post and appended struts or of the queen posts and appended struts

consists of two diagonal members that meet at the apex of the truss, one horizontal beam that serves to tie the bottom end of the diagonals together, and the king post which connects the apex to the horizontal beam below

a metal, tile, or wood strip rounded at the top and used as finishing for the ridge of a roof.