Page 488 - (DK) The Ultimate Visual Dictionary 2nd Ed.

ARCHITECTURE
DOME TIMBERING,
Domes Ogee-curved CHURCH OF THE SORBONNE,
PARIS, FRANCE, 1635-1642
dome (BY J. LEMERCIER)
A DOME IS A CONVEX ROOF. Domes are categorized according Straight brace
to the shapes of both the base and the section through the
Window Deeply projecting pier buttress
center of the dome. The base may be circular, square, or zone
polygonal (many-sided), depending on the plan of the drum Cornice
(the walls on which the dome rests). The section of a dome
Depressed hood mold
may be the same shape as any arch (see pp. 484-485). Pedestal
Various types of dome are illustrated here: a Circular lucarne window
hemispherical dome, which has a circular base Floorboard
and a semicircular section; a saucer dome, Ashlar Floor joist
which has a circular base and a segmental piece
Hood mold
(less than a semicircle) section; a polyhedral
Pin
dome, which is a dome on a Waisted-
polygonal base whose sides meet Short oval
strut lucarne
at the top of the dome; and window
LANTERN AND an onion dome, which has Mortise-and-
UPPER DOME a circular or polygonal base tenon joint Ogee-
TIMBERING, curved
ST. PAUL’S and an ogee-shaped Principal rafter window-
CATHEDRAL section. Many domes have frame
a lantern (a turret with windows) Straight brace
Tie Circular Common Shaft connecting
to provide light inside. Vertical post beam baseplate rafter lantern and
church interior
ROOF WITH Weathercock
LANTERN AND REPRESENTATION OF
ONION DOME DOME METALLING,
CHURCH OF Cross
Ellipsoid THE SORBONNE
orb Orb Square rib
Inverted ovolo Astragal
(quarter-round)
Keeled Volute
lesene Fillet
Roll molding
Onion dome Plain fascia
Fish-scale tile Lantern Buttress
Round-arched
Octahedral base window Volute

Sloping roof Ovolo Cornice
Oversailing (quarter-round)
fascia Round arch Projecting pier
Fillet buttress
Attached Dome
Tetrahedral pillar on a Fish-scale Inverted
capital circular tile demi-heart
Vertical base torus molding
Return band Hood-
mold Waisted-oval
Window Oversailing lucarne
fascia window
Torus
Octahedral Small
Fillet base of volute
lantern
Lantern Gutter
Parapet Semicircular
Triple torus
Tetrahedral roof Small roll Fillet Plain fascia lesene molding

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