A pavilion roof having more than four sides is a polygonal roof.See also: Roof
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
1. A roof hipped equally on all sides, so as to have a pyramidal form; a pyramidal hipped roof.
2. A similar roof having more than four sides; a polygonal roof.
3. A steeply pitched hipped roof whose upper termination is usually a ridge somewhat shorter than the length of the building.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.