Variform by Ply Gem's Vortex Extreme premium vinyl siding features Weather Warrior Technology, which combines a 0.46-inch thickness, reverse roll-over nail hem, Triple Bow locking system, and spring-loaded profile for added strength, rigidity, and wind resistance up to 225 mph. The cedar-look siding comes in double 4-inch traditional lap, double 5-inch traditional lap, and double 4.5-inch Dutch-lap in standard and long lengths. Nineteen colors are available. 800.800-2244.