GIBRALTAR INDUSTRIES, INC.

(a)Evaluation of Disclosure Controls and Procedures

The Company maintains a system of disclosure controls and procedures (as defined in Rule 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended). Management of the Company, under the supervision and with the participation of the Chief Executive Officer and the Chief Financial Officer, evaluated the effectiveness of the Company’s disclosure controls and procedures as of the end of the period covered in this report. Based upon that evaluation and the definition of disclosure controls and procedures contained in Rule 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended, the Company’s Chief Executive Officer and Chief Financial Officer have concluded that as of the end of such period the Company’s disclosure controls and procedures were effective.

(b)Changes in Internal Control over Financial Reporting

The Company acquired OmniMax International, LLC on February 2, 2026. This acquisition will be excluded from management's annual report on internal control over financial reporting for the year ending December 31, 2026. There have been no changes in the Company’s internal control over financial reporting (as defined by Rule 13a-15(f) or 15d-15(f) under the Securities Exchange Act of 1934, as amended) that occurred during the period covered by this Quarterly Report on Form 10-Q that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.