EXHIBIT 23.1 CONSENT OF INDEPENDENT ACCOUNTANTS We consent to the incorporation by reference in Registration Statement Nos. 33-41371 and 33-51665 of Robertson-Ceco Corporation on Form S-8 of our report dated February 25, 1993 (May 3, 1993 as to Note 2) (which includes an explanatory paragraph with respect to a substantial doubt about the ability of the Company to continue as a going concern), appearing in this Annual Report on Form 10-K of Robertson-Ceco Corporation for the year ended December 31, 1993. /s/ Deloitte & Touche Deloitte & Touche Boston, Massachusetts March 30, 1994 -132-