Royal Wood® Lattice Slat is a versatile profile made with the latest composite technology. Slats can be used for a variety of applications such as lattice and trellis panels, as a batten to cover panel joints, or as a mullion strip applied over window edges in multiple opening windows, as well as a general-purpose exterior trim. They won't rot, absorb moisture, delaminate or split. Lattice Slats come with a Limited Lifetime Warranty against performance defects and a 15-year warranty against significant color changes.