EL SEGUNDO, CALIF. (July 12, 1:30 p.m. ET) — Henry Co., which makes roofing and building envelope products including spray polyurethane foam, has been acquired by an investor group led by private equity firm Graham Partners.

Henry Co. has one of the largest manufacturing footprints in North America, according to a 10 July company statement. Its products include roof coatings and cements, air and vapor barriers, underlays, waterproofing products, spray foam, green roofing systems and wax and asphalt emulsions.

Henry’s products are critical for managing the flow of water, air, and vapor through the building envelope, from foundation to roof, improving the structure’s energy efficiency, sustainability and livability.

The company’s brands include Henry (roof cements and coatings), Bakor (building materials), Blueskin (air and vapor barriers), Aqualite (wax emulsions), Black Knight (roof coatings and driveway sealer) and Permax (spray foam).

Co-investors in the acquisition include private equity firm OceanBridge Partners, current management, and former owners. They acquired Henry from private equity firm AEA Investors. The parties did not reveal financial details of the transaction.

“Under very capable leadership, Henry delivered solid performance over the past several years in spite of the difficult market environment,” said Rob Newbold, managing principal at Graham Partners, in a statement.

“We look forward to working actively with management to enhance Henry’s leadership in building envelope systems through the development of innovative, high performance building solutions and the ongoing commitment to sustainable, profitable growth aided by the resources we have to offer at Graham,” Newbold added.

Brian Strauss will remain president and CEO, and Henry will retain the existing senior management team.