QuadCore KS Flat
A flat-faced QuadCore wall and ceiling panel in a 42 in. module, for interior or exterior use in food, life-science, pharmaceutical and laboratory buildings.
D.W. Ross supplies Kingspan panels for cold storage, clean room and fire-rated work, and can install the panel system it supplies or deliver it material-only for your contractor.
← Cold storage and controlled-environment panels
Specifications
As published by Kingspan. Used for: Cold storage, Food processing, Clean rooms and labs, Exterior walls.
- Profile
- Exterior: Flat. Interior: Shadowline.
- Embossing
- Exterior and interior: stucco or non-embossed.
- Gauge
- Exterior and interior: 26, 24 or 22 ga.
- Width
- 42 in.
- Thickness
- 2, 2.5, 3, 4, 5, 6 or 8 in.
- Length
- 8 to 53 ft.
- Reveal
- Vertical: 1/8 or 3/8 in. Horizontal: 3/8 in.
- Orientation
- Vertical or horizontal.
- Joint
- KS joint.
- Coating option
- CLEANsafe coatings for corrosion and heavy wash-down.
- Insulation core
- QuadCore. About R-8 per inch at 75°F mean temperature and about R-9 per inch at 35°F mean temperature, ASTM C518.
- Availability
- Confirmed by D.W. Ross in the quote for your project.



R-value by thickness
| Thickness | At 35°F mean temperature | At 75°F mean temperature |
|---|---|---|
| 2 in. | R-18 | R-16 |
| 2.5 in. | R-22.5 | R-20 |
| 3 in. | R-27 | R-24 |
| 4 in. | R-36 | R-32 |
| 5 in. | R-45 | R-40 |
| 6 in. | R-54 | R-48 |
| 8 in. | R-72 | R-64 |
Published test results
| Test | Procedure | Result |
|---|---|---|
| Fire | FM 4880 | Passed: Class 1 Fire Rating of Building Panels or Interior Finish Materials* |
| Fire | FM 4882 | Passed: Smoke Sensitive Occupancies Interior and Exterior Use* |
| Fire | ASTM E84 | Flame spread 25 or less / smoke developed 90 or less |
| Fire | CAN/ULC-S101 | Fire endurance tests: 10 min (fastener conditions vary depending on product thickness) |
| Fire | CAN/ULC-S102 | Flame spread 20, smoke developed 45 for panel insulation core |
| Fire | CAN/ULC-S138 | Passed: fire growth of foamed plastic insulated building panels in a full scale room configuration |
| Fire | CAN/ULC-S134 | Passed: standard method of test for fire of exterior wall assemblies |
| Fire | NFPA 259 | Tested for potential heat of building materials |
| Fire | NFPA 285 | Passed: fire propagation characteristics of exterior non-load-bearing wall assemblies containing combustible components |
| Structural | FM 4881 | Passed. Complete wind pressure ratings from Kingspan Technical Services or ApprovalGuide.com* |
| Structural | ASTM E72 | Vacuum chamber tested. Panel load/span and deflection tables are available |
| Air infiltration | ASTM E283 | 0.003 CFM/ft² of panel area at 6.24 psf |
| Water | ASTM E331 | No uncontrolled water penetration at 20 psf differential pressure |
| Water | AAMA 501.1 | Dynamic water pressure testing: no sign of water leakage at 15 psf |
| Bond strength | ASTM D1623 | Panels tested for tensile bond strength of metal to foam. Sample placed in an autoclave device and pressurized to 2 PSI at 218°F for 2½ hours |
| Skin delamination | — | No skin delamination with direct pull-off pressure up to 1188 psf |
*FM scope: thickness 2 to 6 in., width 24 to 42 in., minimum panel length 8 ft, minimum gauge 26 ga exterior and interior.
For FM compliance, systems must be installed in accordance with FM installation specifications as detailed on ApprovalGuide.com.
Kingspan documents
These open on Kingspan’s site, so you always get the current revision. Send the data sheet and span table with your drawings and we will check the panel against the room.
- Data sheetQuadCore KS Flat Data Sheet (PDF) ↗
- Span tableQuadCore KS Shadowline and KS Flat Span Tables (PDF) ↗
- CSI specificationQuadCore KS Series Cold Storage MasterFormat CSI Specifications (PDF) ↗
- CAD detailsKS Series Cold Storage Vertical CAD Details (PDF) ↗
- CAD detailsKS Series Vertical CAD Details: Standard Trims (Cold Storage) (PDF) ↗
- Installation guideInstallation Guide: Cold Storage Panels (PDF) ↗
- BIM objectQuadCore KS Flat LOD300 BIM Objects (ZIP) ↗
- BrochureQuadCore Brochure (PDF) ↗
- BrochureControlled Environments Product Portfolio (PDF) ↗
- Color chartKingspan Color Chart (PDF) ↗
- MaintenanceKingspan Panels Maintenance Manual (PDF) ↗
Product data and images: Kingspan Insulated Panels and Kingspan Insulation. Values as published by Kingspan; the data sheet linked on each page is the current reference. Read on 2026-10-12 from Kingspan product page: QuadCore KS Flat and QuadCore KS Flat Data Sheet.
Tell us about the room.
Design temperature, size, wash-down and fire requirements, or the drawings. We confirm the panel, thickness, gauge and finish, and quote it.