| | | | | | | | |
| Appleton Supply Company, Inc. | Delaware |
| Architectural Mailboxes, Inc. | Delaware |
| Arundel Square Garden, LLC | Delaware |
| Bingfield Park, LLC | Delaware |
| Golders Hill Park, LLC | Delaware |
| OmniMax International, LLC | Delaware |
| Amerimax Canada Holdings, Inc. | Canada |
| Amerimax Canada, Inc. | Canada |
| Amerimax Richmond Company, Inc. | Indiana |
| Euromax UK Limited | United Kingdom |
| Hancock Enterprises, LLC | Delaware |
| Nu-Ray Metal Products, LLC | California |
| Nu-Ray Metal Products, LLC | Washington |
| D.S.B. Holding Corp. | Delaware |
| The D.S. Brown Company | Ohio |
| Florence Corporation | Illinois |
| Florence Corporation of Kansas | Kansas |
| Gibraltar Building Envelope, Inc. | Delaware |
| Construction Metal Products, Inc. | Delaware |
| Epic Steel, LLC | Montana |
| Flatiron Steel, LLC | Colorado |
| Gideon Steel Panel Company, LLC | Delaware |
| Teton Steel, LLC | Idaho |
| Gibraltar Industries Holding Company (UK) Limited | United Kingdom |
| Rough Brothers Greenhouse Manufacturing (Shanghai) Co., Ltd | China |
| Gibraltar Steel Corporation of New York | New York |
| Air Vent Inc. | Delaware |
| Southeastern Metals Manufacturing Company, Inc. | Florida |
| Pacific Awards Metals, Inc. | California |
| Noll/Norwesco, LLC | Delaware |
| SBC Acquisition, LLC | Delaware |
| Quality Aluminum Acquisition, LLC | Delaware |
| Rough Brothers Holding Co., Inc. | Ohio |
| Lane Acquisition, Inc. | Delaware |
| Lane Supply, Inc. | Texas |
| Rough Brothers Manufacturing, Inc. | Ohio |
| Prospiant, Inc. | Ohio |
| Apeks, LLC | Ohio |
| Thermo Energy Solutions, Inc. | Canada |
| Terrasmart, Inc. | Ohio |