The stock is down 37% over the last year. James Hardie Industries, a fiber-cement siding producer, said late Sunday that it agreed to buy Azek, a maker of composite decking, railing and pergolas ...

“We are uniting two highly complementary companies,” said James Hardie Chief Executive Aaron Erter. The combined business will make products including siding, exterior trim, decking, railing ...

AZEK is based in Chicago. James Hardie shareholders will own about 74% of the combined company, with AZEK stockholders owning 26%. The combined company will sell siding, exterior trim, decking ...