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ST40 - Striated Insulated Metal Panels

Where a clean, flat appearance is desired, the ST40 Striated Insulated Metal Panel is a very economical option. Its light embossed exterior is profiled with narrow longitudinal striations that adds rigidity yet helps ensure an acceptable flatness tolerance. Ideal for nearly any application, the ST40 combines the aesthetics of a flat exterior appearance with the high insulation ratings of an insulated wall panel.

  ST40 insulated panel  
ST40 Specifications
Thickness 2" 2.5" 3" 4"
R-Value 16 20 24 32
U-Factors .063 .049 .041 .031
Width 40"
Length 8'0" minimum to 50'0" maximum
depending on solar loading
Coatings Exterior: PVDF
Interior: Imperial White (polyester)
Interior Texture Light Embossed
Trim Texture Smooth
Insulation CFC-free foamed-in-place Polyisocyanurate foam @ 2.2 to 2.5 pcf density
Metal Facings Exterior: 26 ga galvanized steel (24 ga & 22 ga are optional)
Interior: 26 ga galvanized steel
Offset tongue & groove with concealed fastener.

  R-values are derived from thermal testing per ASTM C518 @ 40°F mean and ASTM C1363 @ 35°F mean. For project specific values, please contact your sales representative.




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Panel Thicknesses: 2", 2.5", 3", 4"
Striated Insulated Metal Panel
ST40 detail

Features and Benefits

  • The double tongue & groove is self aligning and weather tight. This allows for sealant application at either the interior or exterior side of the panel joinery depending, on the direction of the vapor drive.
  • Hidden/concealed fasteners give the panel a clean, aesthetically appealing appearance.
  • Removable film prevents damage to the exterior of the panel during shipping and installation.
  • This panel arrives on site in one piece and requires one simple step installation, reducing construction time and costs.
  • Standard exterior and interior steel surface is 26 gauge.
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