Based in The Bronx, N.Y., Zero International has announced the acquisition of the Door and Vision Lites product line of Burgaw, N.C.-based LL Building Products Inc., a division of GAF Materials Corp. Zero says its will continue to manufacture the door hardware line in Burgaw as a separate Zero facility called Advantage Lites & Louvers.

"We are very pleased to provide useful, complementary door products to our long-standing door-hardware customers," said Elias Wexler, Zero president. "In addition, our lites and louvers customers can look forward to new features and enhancements, as well as new products that build on Zero's traditional strengths in engineering, quality control and distribution."