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Kingspan · QuadCore cold storage panel systems

QuadCore KS Flat Interior

Flat, non-porous faces on both sides, for interior walls and ceilings where cleaning and contamination control decide the room: clean rooms, pharmaceutical and life-science space, data centers.

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: Clean rooms and labs, Data centers, Cold storage, Food processing.

Profile
Exterior: Flat. Interior: Flat or Shadowline.
Embossing
Exterior and interior: stucco or non-embossed.
Gauge
Exterior and interior: 24 or 22 ga.
Width
45 3/8 in.
Thickness
2, 2 3/4, 3, 4, 5, 6 or 8 in.
Length
8 to 53 ft.
Orientation
Vertical.
Coating option
CLEANsafe 120.
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.

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QuadCore KS Flat Interior panels with smooth white faces meeting at a vertical panel joint
Vertical panel joint. Image: Kingspan.
Two QuadCore KS Flat Interior panels meeting at an inside corner
Inside corner. Image: Kingspan.
QuadCore KS Flat Interior partition panel set on a concrete curb at the floor
Partition on a curb. Image: Kingspan.

R-value by thickness

Thermal resistance per ASTM C518, as published by Kingspan.
ThicknessAt 35°F mean temperatureAt 75°F mean temperature
2 in.R-18R-16
2.75 in.R-24.75R-22
3 in.R-27R-24
4 in.R-36R-32
5 in.R-45R-40
6 in.R-54R-48

Published test results

Test procedures and results as listed by Kingspan. The listing, not this page, is the reference for a code review.
TestProcedureResult
FireFM 4880Passed: Class 1 Fire Rating of Building Panels or Interior Finish Materials*
FireFM 4882Passed: Smoke Sensitive Occupancies Interior and Exterior Use*
FireASTM E84Flame spread 25 or less / smoke developed 90 or less
FireCAN/ULC-S102Flame spread 20, smoke developed 45 for panel insulation core
FireCAN/ULC-S138Passed: fire growth of foamed plastic insulated building panels in a full scale room configuration
FireNFPA 259Tested for potential heat of building materials
StructuralASTM E72Vacuum chamber tested. Panel load/span and deflection tables are available
Bond strengthASTM D1623Panels 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
Regional approvalsCity of Los Angeles (LADBS)CCRR 0567; FB 3080

*FM scope: thickness 2 to 8 in., width 45 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.

Before you specify it

  • Kingspan lists an 8 in. thickness for this panel, and its published R-value table stops at 6 in. Ask for the 8 in. figure from the data sheet before you specify it.

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.

QuadCore KS Shadowline InteriorQuadCore KS FlatCLEANsafe 120The whole Kingspan catalog

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 Interior and QuadCore KS Flat Interior Data Sheet.

Tell us about the room.

Request a quote →Call (216) 631-8080

Design temperature, size, wash-down and fire requirements, or the drawings. We confirm the panel, thickness, gauge and finish, and quote it.