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.
The values in the table represent PUR values. For PIR, see data sheet.
| Coverage Width | 42″ |
| Thermal Values – R-Value & U-Factor | U-Factor(BTU/h-ft2*Fahrenheit) 2″ = 0.060 2.5″ = 0.047 3″ = 0.039 4″ = 0.029 5″ = 0.023 6″ = 0.020 8″ = 0.015 R-Value (h*ft2*F/BTU) 2″ = 17.5 2.5″ = 21.9 3″ = 26.2 4″ = 35.0 5″ = 43.7 6″ = 52.5 8″ = 70.0 |
| Exterior Face | G-90 galvanized or AZ-50 aluminum-zinc coated steel in 26, 24 or 22 Ga. Not available in unembossed. |
| Interior Face | G-90 galvanized or AZ-50 aluminum-zinc coated steel or 304 or 316 stainless steel in 26, 24, and 22~ Ga. |
| Finishes | Fluropon, Fluropon Premier, Fluropon Classic, Flurothane, Flurothane Coastal, WeatherXL, Igloo White Polyester |
| Joint | Offset double tongue-and-groove with extended metal shelf for positive face fastening |
| Length | NON-DIRECTIONAL EMBOSSED 8′-0″ to 32′-0″ Horizontal 8′-0″ to 52′-0″ Vertical |
| Thickness | 2″, 2 ½”, 2 ¾”*, 3″, 4″, 5″, 6″, 8″ |
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.
2012 Master Format™ Section 07 42 13.19
All specifications and designs are subject to change without notice.
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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| Test/Approval | Test Method | Test Title | Results |
|---|---|---|---|
| Fire US | ASTM E84 | Surface Burning Characteristics of Building Materials | Flame spread ≤25, smoke developed ≤450 |
| ASTM E119 | Fire Tests of Building Construction Materials | One hour non-load bearing rating with two layers of Type X Gypsum Vertical or horizontal installation | |
| FM 4880 | Class 1 Fire Rating of Insulated Wall, Ceiling and Roof Panels | Product approved Exterior wall requires FM 4881 approval | |
| NFPA 259 | Test 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 285-19 | Evaluation of Fire Propagation Characteristics of Exterior Non-Load Bearing Wall Assemblies | Panel assembly met the requirements of the standard | |
| NFPA 286 | Standard Methods of Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish to Room Fire Growth | Test specimen met the criteria of the IBC Section 803.1.2.1 | |
| Fire Canada | CAN/ULC S101 | Fire Endurance Tests of Building Construction and Materials | One hour non-load bearing fire rating with two layers of Type X Gypsum |
| CAN/ULC S101 | Fire Endurance Tests of Building Construction and Materials | Meets 10 minute stay-in-place requirements | |
| CAN/ULC S102 | Surface Burning Characteristics of Building Materials and Assemblies | Meets the National Building Code of Canada requirements | |
| CAN/ULC S134 | Fire Test of Exterior Wall Assemblies | Complies with the fire-spread and heat-flux limitations required by the National Building Code of Canada | |
| CAN/ULC S138 | Fire Growth of Insulated Building Panels in a Full-Scale Room Configuration | Met the criteria of the standard | |
| Structural | ASTM E72 | Standard Test Methods of Conducting Strength Tests of Panels for Building Construction | See load chart |
| Thermal Performance | ASTM C518 | Steady-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 C1363 | Thermal Performance of Building Materials and Envelope Assemblies | 35° 2″ = 17.5 2.5″ = 21.9 3″ = 26.2 4″ = 35.0 5″ = 43.7 6″ = 52.5 | |
| Air Infiltration | ASTM E283 | Rate 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 E2357 | Air 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 Infiltration | ASTM E331 | Water 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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