PermLok 1.0 and 1.5 interlocking standing seam architectural panels offer both strength and beauty for high-sloped roofing applications.

Product Documents

Design Characteristics

  • Available in both 1-inch (PermLok 1.0) and 1½-inch (PermLok 1.5) interlocking standing seams
  • PermLok 1.0 is available in 13-inch & 17-inch widths
  • PermLok 1.5 is available in 12-inch & 18-inch widths
  • Designed for use on slopes of 3:12 or greater with a solid deck and underlayment
  • Factory-installed sealant in seam
  • Heavy 18-gauge concealed clips
  • Can be used as a vertical wall panel

Available Materials

  • G90 galvanized steel: 22 or 24-gauge
  • AZ55 Galvalume®: 22-gauge
  • Alumunium: .032″ and .040″

Product Testing

  • UL-580 Class 90 windstorm rating
  • ASTM E-283 air infiltration
  • ASTM E-331 water penetration
  • ASTM E-1592 uniform static air pressure


  • 20-year finish warranty for Kynar® coating
  • Materials and workmanship warranty
  • 10-year weathertight warranty on qualifying applications

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