double-gable roof
double-gable roof
A roof composed of two parallel gables forming the shape of the letter M on the end wall.

Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
M-roof

M-roof
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.