0910_AR_Tech_Versa-Lok_1.jpg(300) ATAS International has introduced two new horizontal wall panels: Versa-Seam and Versa-Lok. Versa-Seam is a rainscreen-style system that requires a waterproof building envelope and forms architectural shadow lines. The 1"-tall panels are available in 8", 10", and 12" widths. Versa-Lok (shown) is a flat shingle-style wall panel that creates classic rectangular shapes. Sizes include 12" by 36", 12" by 60", 16" by 36", and 16" by 60". Both types of panels are available in 0.032"- or 0.040"-thick aluminum with a smooth texture finish and Kynar 500 PVDF or Hylar 5000 PVDF coating.