helm roof[′helm ¦rüf]
A steeply pitched roof with four faces rising from gables to a point.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Four faces rest diagonally between the gables and converge at the top.See also: Roof
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
A roof having four faces, each of which is steeply pitched so that they form a spire; the four ridges rise to the point of the spire from a base of four gables.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.