Advances strategic plan to simplify and focus asset portfolio on building products and structures end-markets

Proceeds to be used to reduce debt

Gibraltar Industries, Inc. (NASDAQ:ROCK), a leading manufacturer and provider of products and services for the residential and agtech markets, today announced that it has entered into an agreement to sell its Infrastructure business, D.S. Brown, to Saint-Gobain for $208 million in cash, subject to customary post-closing adjustments. The sale is expected to close in the fourth quarter of 2026 subject to customary closing conditions, including receipt of required regulatory approvals.

"This sale is another step in the simplification of our portfolio, sharpening our strategic focus and resource allocation on the building products and structures end-markets to drive greater value and returns for our stockholders," stated Chairman and CEO Bill Bosway. "We expect this transaction to be highly tax efficient, maximizing the gross proceeds from the sale to be used to accelerate the reduction of debt and strengthen our balance sheet as we enter 2027."

Management will update its 2026 outlook with respect to this sale in connection with its third quarter 2026 report, the timing of which will be announced separately.

ADVISORS

Moelis & Company LLC is serving as Gibraltar’s exclusive financial advisor and Polsinelli is serving as Gibraltar’s legal counsel.

About Gibraltar

Gibraltar is a leading manufacturer and provider of products and services for the residential, agtech, and infrastructure markets. Gibraltar’s mission, to make life better for people and the planet, is fueled by advancing the disciplines of engineering, science, and technology. Gibraltar is innovating to reshape critical markets in comfortable living and productive growing throughout North America. For more please visit www.gibraltar1.com.

FORWARD-LOOKING STATEMENTS

Certain information set forth in this news release, other than historical statements, contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995 that are based, in whole or in part, on current expectations, estimates, forecasts, and projections about the Company’s business, and management’s beliefs about future operations, results, and financial position. These statements are not guarantees of future performance and are subject to a number of risk factors, uncertainties, and assumptions. Actual events, performance, or results could differ materially from the anticipated events, performance, or results expressed or implied by such forward-looking statements. Factors that could cause actual results to differ materially from current expectations include, among other things: the occurrence of any event, change or other circumstances that could give rise to the termination of the purchase agreement related to the sale transaction or could cause the consummation of the sale transaction to be delayed or to fail to occur; the failure to obtain certain required regulatory approvals or the failure to satisfy any of the other closing conditions to the completion of the sale transaction within the expected timeframes or at all; risks related to disruption of management’s attention from Gibraltar’s ongoing business operations due to the sale transaction; the effect of the announcement of the sale transaction on the ability of Gibraltar to retain and hire key personnel and maintain relationships with its customers, suppliers and others with whom it does business, or on its operating results and business generally; the ability of Gibraltar to meet expectations regarding the timing and completion of the sale transaction; the outcome of any legal proceedings that may be instituted against Gibraltar related to the sale transaction; changes to economic conditions and customer demand for the Company’s products; the availability and pricing of principal raw materials and component parts, supply chain challenges causing project delays and field operations inefficiencies and disruptions, the loss of any key customers, adverse effects of inflation, the ability to continue to improve operating margins, the ability to generate order flow and sales and increase backlog; the ability to translate backlog into net sales, other general economic conditions and conditions in the particular markets in which Gibraltar operates, changes in spending due to laws and government incentives, such as the Infrastructure Investment and Jobs Act, changes in customer demand and capital spending, competitive factors and pricing pressures, the ability to develop and launch new products in a cost-effective manner, the ability to realize synergies from other newly acquired businesses, disruptions to IT systems, the impact of trade and regulation, rebates, credits and incentives and variations in government spending and ability to derive expected benefits from restructuring, productivity initiatives, liquidity enhancing actions, and other cost reduction actions. Before making any investment decisions regarding the Company, we strongly advise you to read the section entitled "Risk Factors" in the most recent annual report on Form 10-K which can be accessed under the "SEC Filings" link of the "Investor Info" page of the website at www.Gibraltar1.com. The Company undertakes no obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required by applicable law or regulation.

Alliance Advisors Investor Relations

Jody Burfening/Carolyn Capaccio

(212) 838-3777