KingRib Insulated Roof Panel for Cold Storage

KingRib insulated roof panels are the ultimate high R-value roof system. The installation process saves labor by providing the exterior weather barrier, insulation and interior finish all in one step. KingRib is designed for use on commercial / industrial and cooler buildings for new and re-roof applications.

  • Panel thickness up to 6”
  • R-values up to of 49 means superior thermal performance
  • Ideal for controlled environments including coolers, freezers and pharmaceutical production
  • Interior mesa profile with stucco embossing provides attractive ceiling
  • Excellent foam-to-foam contact at joint for reduced thermal bridging
  • Light weight, low maintenance system


Product Information

Technical Information
Performance Testing & Approvals
Profile Exterior: Ribbed Trapezoidal
Interior: Mesa
Embossing Exterior: Smooth
Interior: Embossed
Gauge Exterior: 26, 24, 22 ga
Interior: 26, 24, 22 ga
Width 40"
Thickness 1.5", 2.5", 4", 5", 6"
Length 8' - 50'
Post fabrication Cutbacks
R-value ≈ 7.2 per inch per ASTM C518 @ 75˚F
≈ 8.2 per inch per ASTM C518 @ 40°F
Test Procedure Results
Fire FM 4880 Passed: Class 1 Fire Rating of Building Panels or Interior Finish Materials*
ASTM E84 Flame spread: 25 or Less, Smoke developed: 450 or Less
ULC-S102 Flame Spread: 20 / Smoke Developed: 165 for panel insulation core
ULC-S126 Passed: Standard Method of Test For Fire Spread Under Roof-Deck Assemblies
ULC-S138 Passed: Standard Method of Test For Fire Growth Of Insulated Building Panels In A Full-Scale Room Configuration
Wind Uplift FM 4471 Class 1-60 - RoofNav Assembly #222746-0-0*
Strength ASTM E1592 Panel load / span and deflection tables are available
Thermal Transmission ASTM C518
Thermal Performance at 75° Mean Temperature   Thermal Performance at 40° Mean Temperature
Thickness R-Value Thickness R-Value
1.5 11 1.5 12
2.5 18.0 2.5 20
4 29 4 33
5 36.0 5 41
6 43 6 49
Air Infiltration ASTM E1680 0.04 CFM/ft2 of Panel Area at 20 psf
Water Penetration ASTM E1646 No Water Penetration at 12.0 psf

*Thickness: 2.5”-6”, Width: 40”, Min. gauge: Exterior 26 ga, Interior 26 ga.
For FM compliance, systems must be installed in accordance with FM installation specifications as detailed on
Please contact for detailed information or refer to

At Kingspan, we understand the unique challenges that design and construction professionals face every day.  To do our part in meeting these demands, Kingspan products are offered with our team’s guidance and technical expertise, followed up after construction is completed with our product warranties:

  • 2 year standard material workmanship warranty
  • Up to 20 years standard finish warranty
Contact our sales or customer service departments for information regarding our optional warranty programs.



Be Inspired Global Case Study Book

KingRib & KingSeam Series Colour Chart

KingRib Data Sheet

KingRib Roof & Wall MasterFormat CSI Specifications (PDF)

KingRib Roof & Wall MasterFormat CSI Specifications (DOC)

KingRib CAD Details (PDF)

KingRib CAD Details (DWG)

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