Georgia-Pacific Corp., Atlanta, introduces Centura™ steel shingles, a new line of lightweight, 29-gauge, Galvalume® steel roofing. The shingles are easy to install, energy efficient, and feature weather resistance, color retention and a 50-year limited warranty on the Galvalume substrate. The shingles are available in six colors. They are coated with Fluropon® paint from Valspar Corp. This cool-pigment paint was developed to meet energy-saving criteria for roofing materials.