Commercial & Industrial Products CF Flute Wall Panel
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CF Flute Wall Panel

The CF Flute exterior insulated metal wall panels are ideal for commercial, institutional, and industrial applications. The fluted wall panel’s ribbed profile provides bold vertical reveals, complimenting almost any building design. The profile exhibits traditional styling with distinctive vertical lines and can be used in conjunction with other Metl-Span profiles. 

For use as an exterior wall to create a distinctive building profile where temperature control and insulation values are critical to the performance of the building, Flute panels are ideal for cold storage applications, including dry goods warehouses, cooler and freezer buildings, and food processing facilities. Flute panels are for all temperature-controlled environments where maintaining temperature control and insulation values are critical. Metl-Span also offers USDA-compliant stainless steel for use in washdown areas. Contact our representatives today to learn more.

Coverage Width42″
Thermal Values – R-Value & U-FactorU-Factor(BTU/h-ft2*fahrenheit)
Panel Width: 42″ at 35 degrees
2″ = 0.059
2.5″ = 0.047
3″ = 0.039
4″ = 0.029
5″ = 0.023
6″ = 0.019

R-Value (h*ft2*F/BTU)
Panel Width: 42″ at 35 degrees
2″ = 17.9
2.5″ = 22.4
3″ = 26.9
4″ = 35.9
5″ = 44.8
6″ = 53.8
Exterior FaceG-90 galvanized or AZ-50 aluminum-zinc coated steel in 26, 24 or 22 Ga. Not available in unembossed.
Interior FaceG-90 galvanized or AZ-50 aluminum-zinc coated steel in 26, 24 or 22 Ga.
FinishesFluropon, Fluropon Premier, Fluropon Classic, Flurothane, Flurothane Coastal, WeatherXL, Igloo White Polyester
JointOffset double tongue-and-groove with extended metal shelf for positive face fastening
Length8′-0″ to 52′-0″
Thickness2″, 2 ½”, 2 ¾”, 3″, 4″, 5″, 6″
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Premium Color Options

  • Harbor Blue
  • Pacific Blue
  • Aegean Blue
  • Tahoe Blue
  • Regal Blue
  • Spruce
  • Natural Patina
  • Hemlock Green
  • Classic Green
  • Hunter Green
  • Leaf Green
  • Slate Gray
  • Tundra
  • Smoke Gray
  • Weathered Copper
  • Pewter
  • Zinc Gray
  • Terracotta
  • Colonial Red
  • Brite Red
  • Snow White

Standard Color Options

  • Polar White
  • Sandstone
  • Almond
  • Brownstone
  • Regal Gray

Design Features and Benefits

  • Fluted metal panels utilize concealed clips and eliminate thermal short circuits 
  • Easy and fast installation, with reduced construction labor costs 
  • Can be used for airplane hangars, municipal facilities, equipment maintenance buildings, and more

Colors

ICI Color Chart

1.  Metallic paint finishes will exhibit color shift, shade variances, striations and longitudinal patterning that are inherent characteristics and are not a product defect or cause for rejection.

2.  All Metl-Span colors are formulated to provide maximum energy-efficiency and solar reflectivity.  All standard available Premium I and Premium II colors have been formulated for maximum solar reflectance.

3.  Prices vary by color, gauge and quantity of metal.  Please contact your Metl-Span representative for complete information.

4.  All colors shown are approximate actual finish colors displayed as accurately as possible.

5. Light Stone – Tuff Cote® does not match the Light Stone – Standard SP color offering.

Metl-Span® CF Flute Insulated Metal Wall Panel For Commercial & Industrial Buildings

2012 Master Format™ Section 07 42 13.19

All specifications and designs are subject to change without notice.

Load Span Tables

The Load Span Tables below, excluding Partition Wall, are based on Allowable Stress Design (ASD). For loads calculated based on ASCE 7-10 (LRFD), please refer to section 2.4.1 of ASCE 7-10 for the applicable load combinations using Allowable Stress Design.

For FM Global Requirements, click here

US Wall Panels Load Charts

IMPORTANT NOTES:

Deflection caused by temperature differential induced thermal bow is not addressed in the above table and may result in allowable spans that are less than the spans listed above and may require the use of heavier 24 or 22 gage panel facings at added cost. Except for self-supporting the dead weight of the panel, partition wall panels are non-load bearing. Ceiling panels must be supported from the structure above or by an internal support structure. Panel skins must be captured at both ends of the panel by supporting members designed to support reaction pressures from a 5 psf interior pressure. CF-42 = 42″ wide. CF-45 = 44.5″ wide.

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TESTING: CF Flute Insulated Metal Wall Panel

Test/Approval Test MethodTest Title Results
Fire USASTM E84 Surface Burning Characteristics of Building
Materials
Flame spread ≤25, smoke developed ≤450
ASTM E119Fire Tests of Building Construction MaterialsOne hour non-load bearing rating with two layers of
Type X Gypsum
Vertical or horizontal installation
FM 4880Class 1 Fire Rating of Insulated Wall, Ceiling
and Roof Panels
Product approved Exterior wall requires FM 4881 approval
NFPA 259Test Method for Potential Heat of Building
Materials
Potential heat of foam plastic insulation contained in the assembly tested in accordance with NFPA 285-19
NFPA 285-19Evaluation of Fire Propagation Characteristics of Exterior
Non-Load Bearing Wall Assemblies
Panel assembly met the requirements of the
standard
NFPA 286Standard Methods of Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish to Room Fire GrowthTest specimen met the criteria of the IBC Section 803.1.2.1
Fire CanadaCAN/ULC S101Fire Endurance Tests of Building
Construction and Materials
One hour non-load bearing fire rating with two
layers of Type X Gypsum
CAN/ULC S101Fire Endurance Tests of Building
Construction and Materials
Meets 10 minute stay-in-place requirements
CAN/ULC S102Surface Burning Characteristics of Building
Materials and Assemblies
Meets the National Building Code of Canada
requirements
CAN/ULC S134Fire Test of Exterior Wall AssembliesComplies with the fire-spread and heat-flux
limitations required by the National Building Code
of Canada
CAN/ULC S138Fire Growth of Insulated Building Panels in a
Full-Scale Room Configuration
Met the criteria of the standard
Structural ASTM E72Standard Test Methods of Conducting Strength Tests of
Panels for Building Construction
See load chart
Thermal PerformanceASTM C518Steady-State Thermal Transmission
Properties by Means of the Heat-Flow Meter
Apparatus
K-Factor of 0.112 BTU.in/hr.ft2.°F at 35° F mean core
ASTM C1363Thermal Performance of Building Materials
and Envelope Assemblies
35°
2″ = .059
2.5″ = .047
3″ = .039
4″ = .029
5″ = .023
6″ = .019
Air InfiltrationASTM E283Rate of Air Leakage Through Curtain Walls
Under Specified Pressure Differences
<0.04 cfm/ft2 air infiltration rate at static pressure
differential of 1.57 psf
Vertical or Horizontal installation
ASTM E2357Air Leakage of Air Barrier Assemblies<0.04 cfm/ft2 air infiltration rate at static pressure
differential of 1.57 psf, after 2,000 cycles at +/- 16.71 psf
Vertical or Horizontal installation; with and without
penetrations
Water InfiltrationASTM E331Water Penetration of Exterior Walls by Uniform
Static Air Pressure Differences
No uncontrolled leakage when tested to a static
pressure differential of 6.24 psf for 2 hours
Vertical or Horizontal installation

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