EXHIBIT 21

SUBSIDIARIES

     The following is a list of the subsidiaries of Gibraltar Industries, Inc. as of December 31, 2007. The names of indirectly owned subsidiaries are indented under the names of their respective parent corporations:

Gibraltar Steel Corporation of New York	New York
Southeastern Metals Manufacturing Company, Inc.	Florida
K & W Metal Fabricators, LLC	Colorado
Construction Metals, LLC	California
Noll/Norwesco, LLC	Delaware
United Steel Products Company	Minnesota
Gibraltar of Pennsylvania, Inc.	Pennsylvania
GSC Flight Services Corp.	New York
Gibraltar International, Inc.	Delaware
Gibraltar Pacific Inc.	Mauritius
SCM Metal Products (Suzhou) Co., Ltd.	China
Solar of Michigan, Inc.	Delaware
Air Vent Inc.	Delaware
SCM Metal Products, Inc.	Delaware
Renown Specialties Company Ltd.	Ontario, Canada
Alabama Metal Industries Corporation.	Delaware
Diamond Perforated Metals, Inc.	California
Sea Safe, Inc.	Louisiana
Gator Grate, Inc.	Louisiana
AMICO Canada, Inc.	Canada
International Grating, Inc.	Texas
Gibraltar Industries (UK) Limited	UK
The Expanded Metal Company Limited	UK
Dramex Expanded Metal Limited	UK
Gibraltar Industries Germany GmbH	Germany
Sorst Streckmetall GmbH	Germany
Expamet Polska Sp.zo.o	Poland
Gibraltar Strip Steel, Inc.	Delaware
Cleveland Pickling, Inc.	Delaware
Solar Group, Inc.	Delaware
Home Impressions, Inc.	North Carolina
Appleton Supply Company, Inc.	Delaware
Dramex Corporation	Canada
Dramex International Inc.	Delaware
6890172 Canada Inc.	Canada
Florence Corporation	Illinois
Florence Corporation of Kansas	Kansas