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Union's SL (Snap-Lock) 175 metal roofing panel is a snap locking standing seam metal roofing system that can be used for architectural and light structural applications. The snap lock metal roofing panel is secured with concealed clips and the snap locking standing seam metal roofing panel ribs snap lock securely together without the use of special tools. The snap lock metal roofing panels provide very good wind uplift resistance. SL 175 Snap Lock standing seam metal roofing panel can be specified as an accent feature or a total roof system for schools, shopping centers, banks, hotels, offices, and a variety of other applications.


  • Application: Roofing Panel
  • Fastener: Concealed Fastener
  • Coverages: 12" Coverage, 16" Coverage, 18" Coverage
  • Rib Height: 1-3/4"
  • Minimum Recommended Slope: 1:12
  • Standing seam concealed fastener panel for roof applications.
  • Snap locking ribs.
  • Installs with clips.
  • 1:12 minimum recommended roof pitch.
  • Suitable for solid deck or open framing.
  • Applicable for installations requiring weather-tightness warranties.

Substrates and Coatings

  • High Strength Steel Gauge Options: 22 GA, 24 GA
  • Finishes: Painted Panels, Unpainted Panels
  • 24 and 22 gauge high strength steel.
  • 0.032" aluminum.
  • Anti-corrosion AZ50 Galvalume coating for painted and AZ55 for unpainted steel.
  • Signature 200 Paint System

Your Roof, For Life! Try it before you buy it.