1858 29 July 1/1 There should be one [sc. a copper or iron rod] at least to every forty square feet of roof area.
1934 29 16/2 The gargoyle was located at approximately the center of the west side of the building—that is, at the center of the west side of its roof area.
2009 (Nexis) 24 June 23 Converting the mill roof area into living accommodation.