The largest roofing manufacturer in North American is expanding its footprint in Pennsylvania.
GAF is building a 430,000-square-foot plant adjacent to the one it opened last year in Union County, according to Penn Live.
The new building will be south of the existing 275,000-square-foot building on land GAF purchased earlier this year adjacent to the Route 15-Interstate 80 interchange.
The new plant, which is expected to employ 35, will manufacture polyisocyanurate, a rigid foam board insulation which is installed under thermoplastic polyolefin single-ply roofing membranes manufactured at the current plant and three others in the U.S.
GAF, founded in 1886, is headquartered in Parsippany, New Jersey.
Its other Pennsylvania plants are in Myerstown and Wind Gap. About 150 work at the Myerstown facility making asphalt singles for homes.
Construction is scheduled to begin next year with operation earmarked for 2020.
