CF FLUTED

CF FLUTED

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The ribbed profile of the Metl-Span CF Fluted insulated metal wall panel provides bold vertical lines complementary to almost any commercial or industrial building. The CF Fluted wall panel is the recommended profile for the exterior of cold storage buildings.

01

Exterior Profile:

Flutes 1″ wide and nominal 3/8″ deep

02

Interior Profile:

Mesa nominal 1/8″ deep; Light Mesa nominal 1/16″ deep, Light Mesa not available for 5- or 6-inch thick panels

03

Panel Core:

Foamed-in-place, Non-CFC & zero ODP polyurethane, FM Class 1 approval

04

Thermal Values:

K-factor, Btu in/ft2 hr. °F @ 75°F (24°C) mean core temperature = 0.140.

K-factor, Btu in/ft2 hr. °F @ 40°F (4°C) mean core temperature = 0.126

05

Module Width:

42″

06

Panel Thickness:

2″, 2 1/2″, 3″, 4″, 5″, 6″ (2 3/4″ thickness also available from Nevada plant)

07

Panel Lengths:

8′-0″ to 53′-0″

08

Exterior Facings:

Stucco embossed, G-90 galvanized and/or AZ-50 aluminum-zinc coated steel in 26 Ga., 24 Ga. and 22 Ga.

09

Interior Facings:

Stucco embossed, G-90 galvanized and/or AZ-50 aluminum-zinc coated steel in 26 Ga., 24 Ga. and 22 Ga.

10

Panel Joint:

Offset double tongue and groove with extended metal shelf for positive face fastening

11

Fastening:

Fastener and Clip concealed in the side joint

12

Color:

A full range of exterior colors & coatings is available for the architectural market. For specific information about our available colors and coatings, visit us online for a comprehensive selection.

attributes & advantages

Metl-Span profiled panels with a urethane foam core have a standard FM Class 1 approval and offer the best insulating values available today.


Panels are lightweight and quick to install, significantly reducing construction time.


A double tongue-and-groove offset side joint permits concealed fastening.


Consistent insulating values are achieved with built-in thermal breaks, saving energy.


The metal and foam composite construction creates a rigid panel far stronger than the individual parts. This increases the span capability of the panels and reduces the need for secondary structural steel components.

cf fluted - material specifications

Material Specifications

Exterior Profile: Flutes 1″ wide and nominal 3/8″ deep.
Interior Profile: Mesa wave pattern, nominal 1/8″ deep.
Light Mesa wave pattern, nominal 1/16″ deep (not available for 5″ or 6″ thick panels).
Foam Core: Foamed-in-place, Non-CFC & zero ODP polyurethane, Factory Mutual Class 1 approval.
Thermal Value:
R-Values with Air Films 75° Mean 40° Mean
2″ Panel 15.14 17.03
2-1/2″ Panel 18.71 21.29
2-3/4″ Panel 20.49 23.42
3″ Panel 22.27 25.55
4″ Panel 29.42 34.06
5″ Panel 36.56 42.58
6″ Panel 43.71 51.09
  • R-Values include the air films on each side of the panel.
  • 75° Mean based on ASTM C518 Thermal Testing. 40° Mean based on ASTM C1363 Thermal
  • Testing (Values for C1363 based on 4″ panel testing). All values for other thicknesses extrapolated.
Module Width: 42″
Panel Thickness: 2″, 2-½”, 2-¾”, 3″, 4″, 5″ & 6″
Panel Lengths: Standard 8′-0″ to 53′-0″.
Exterior Facings: Stucco embossed, G-90 galvanized and/or AZ-50 aluminum-zinc coated steel in 26 Ga., 24 Ga. and 22 Ga.
Interior Facings: Stucco embossed, G-90 galvanized and/or AZ-50 aluminum-zinc coated steel in 26 Ga., 24 Ga. and 22 Ga. Type 304 stainless steel in 26 Ga. embossed and unpainted.
Standard Exterior: Full-Strength 70% PVDF Fluoropolymer Coating.
Finishes & Colors:

Polar White, Sandstone, Regal Gray, Desert Beige* and Dark Bronze*.
*Desert Beige and Dark Bronze are premium colors in 22 Ga. thickness.  

Note:

  1. A new expanded palette of premium colors is also available for non-cold storage buildings.
  2. Dark colors are not recommended for exterior color on cooler and freezer buildings.
  3. Prices may vary by color, gauge and quantity of metal.
Interior Finishes & Colors: USDA-compliant Polyester, Igloo White.
USDA-compliant PVC Plastisol, Polar White*
*PVC Plastisol Polar White is a different color & shade than Polar White in other available finishes.
Joint: Offset double tongue and groove with extended metal shelf for positive face fastening.
Fastening: Fastener & Clip concealed in the side joint.
FM Approved Class 1 with no height restrictions.

load span tables

CF-42 FLUTE WALL PANEL ALLOWABLE CONNECTION LOAD (PSF)
PANEL
THICKENSS 		SPAN
CONDITION 		FASTENING
PATTERN 		PANEL SPAN (FT)
5 6 7 8 9 10 11 12 13 14 15
2″ Thick Two
Spans		 Pattern FP1 31.6 25.8 21.7 18.8 16.5 14.8 13.3 12.2 11.2 10.3 9.6
Pattern FP2 46.2 37.7 31.8 27.5 24.2 21.6 19.5 17.8 16.4 14.3 12.5
Pattern FP3 58.3 47.6 40.2 34.7 30.5 26.0 22.1 19.0 16.4 14.3 12.5
Three Or
More Spans		 Pattern FP1 33.1 27.4 23.4 20.4 18.1 16.2 14.7 13.5 12.4 11.5 10.8
Pattern FP2 48.4 40.1 34.2 29.8 26.4 23.7 21.2 18.0 15.4 13.2 11.4
Pattern FP3 61.1 50.6 43.2 36.5 30.2 25.2 21.2 18.0 15.4 13.2 11.4
2.5″ Thick Two
Spans		 Pattern FP1 33.3 27.2 22.9 19.8 17.4 15.5 14.0 12.7 11.7 10.8 10.1
Pattern FP2 47.5 38.8 32.7 28.2 24.8 22.1 19.9 18.2 16.7 15.4 14.3
Pattern FP3 60.1 49.0 41.3 35.7 31.4 28.0 25.2 23.0 21.1 19.5 17.3
Three Or
More Spans		 Pattern FP1 34.6 28.6 24.4 21.3 18.8 16.9 15.3 14.0 12.9 12.0 11.2
Pattern FP2 49.3 40.8 34.8 30.3 26.8 24.1 21.9 20.0 18.4 17.1 16.0
Pattern FP3 62.4 51.6 44.0 38.3 33.9 30.5 27.7 24.7 21.3 18.5 16.2
3″ Thick Two
Spans		 Pattern FP1 35.1 28.7 24.1 20.8 18.3 16.3 14.7 13.4 12.2 11.3 10.5
Pattern FP2 48.8 39.8 33.6 28.9 25.4 22.6 20.4 18.6 17.0 15.7 14.6
Pattern FP3 61.8 50.5 42.5 36.7 32.2 28.7 25.9 23.5 21.6 20.0 18.6
Pattern FP4 71.1 58.0 48.9 42.2 37.0 33.0 29.7 27.1 24.8 22.9 21.3
Three Or
More Spans		 Pattern FP1 36.1 29.9 25.4 22.2 19.6 17.6 16.0 14.6 13.5 12.5 11.6
Pattern FP2 50.2 41.5 35.4 30.8 27.3 24.5 22.2 20.3 18.7 17.4 16.2
Pattern FP3 63.7 52.6 44.8 39.0 34.6 31.0 28.2 25.8 23.7 22.0 20.5
Pattern FP4 73.2 60.5 51.5 44.9 39.7 35.7 32.4 29.6 27.2 23.8 21.0
4″ Thick Two
Spans		 Pattern FP1 43.0 35.3 29.8 25.6 22.5 20.0 18.0 16.4 15.0 13.8 12.8
Pattern FP2 63.0 51.8 43.6 37.6 33.0 29.3 26.4 24.0 22.0 20.3 18.8
Pattern FP3 74.3 61.0 51.5 44.3 38.9 34.6 31.2 28.3 26.0 23.9 22.2
Pattern FP4 79.6 65.4 55.1 47.5 41.7 37.1 33.4 30.3 27.8 25.7 23.8
Pattern FP5 83.3 68.4 57.7 49.7 43.6 38.8 34.9 31.7 29.1 26.8 24.9
Pattern FP9 89.5 73.5 62.0 53.4 46.9 41.7 37.5 34.1 31.3 28.8 26.8
Pattern FP10 93.6 76.9 64.8 55.9 49.0 43.6 39.3 35.7 32.7 30.2 28.0
Three Or
More Spans		 Pattern FP1 44.0 36.3 30.9 26.9 23.8 21.3 19.3 17.7 16.3 15.1 14.1
Pattern FP2 64.4 53.2 45.3 39.4 34.9 31.3 28.3 25.9 23.9 22.1 20.6
Pattern FP3 76.0 62.8 53.4 46.5 41.1 36.9 33.4 30.6 28.2 26.1 24.3
Pattern FP4 81.4 67.2 57.2 49.8 44.1 39.5 35.8 32.8 30.2 28.0 26.1
Pattern FP5 85.1 70.3 59.9 52.1 46.1 41.3 37.5 34.3 31.6 29.3 27.3
Pattern FP9 91.5 75.6 64.2 55.6 49.0 43.8 39.6 36.2 33.3 30.8 28.7
Pattern FP10 92.6 75.9 64.2 55.6 49.0 43.8 39.6 36.2 33.3 30.8 28.7
5″ Thick Two
Spans		 Pattern FP1 42.3 35.8 30.3 26.2 23.0 20.4 18.4 16.7 15.3 14.1 13.0
Pattern FP2 61.9 52.5 44.5 38.4 33.6 29.9 26.9 24.4 22.4 20.6 19.1
Pattern FP3 73.1 62.0 52.5 45.2 39.7 35.3 31.7 28.8 26.4 24.3 22.6
Pattern FP4 78.2 66.4 56.2 48.5 42.5 37.8 34.0 30.9 28.3 26.1 24.2
Pattern FP5 81.9 69.4 58.8 50.7 44.5 39.6 35.6 32.3 29.6 27.3 25.3
Pattern FP9 88.0 74.6 63.2 54.5 47.8 42.5 38.2 34.7 31.8 29.3 27.2
Pattern FP10 92.0 78.1 66.1 57.0 50.0 44.5 40.0 36.3 33.3 30.7 28.4
Three Or
More Spans		 Pattern FP1 43.5 36.6 31.2 27.1 24.0 21.5 19.4 17.8 16.4 15.2 14.1
Pattern FP2 63.8 53.7 45.7 39.7 35.1 31.5 28.5 26.1 24.0 22.2 20.7
Pattern FP3 75.2 63.3 53.9 46.8 41.4 37.1 33.6 30.7 28.3 26.2 24.4
Pattern FP4 80.6 67.8 57.7 50.2 44.4 39.8 36.0 32.9 30.3 28.1 26.2
Pattern FP5 84.3 70.9 60.4 52.5 46.4 41.6 37.7 34.4 31.7 29.4 27.4
Pattern FP9 90.6 76.2 64.9 56.4 49.9 44.7 40.5 30.7 34.1 31.6 29.4
Pattern FP10 94.8 79.8 67.9 59.0 52.2 46.8 42.4 38.7 35.7 33.0 30.8
6″ Thick Two
Spans		 Pattern FP1 41.7 35.3 30.7 26.6 23.4 20.8 18.7 17.0 15.5 14.3 13.2
Pattern FP2 61.2 51.7 45.0 39.0 34.3 30.5 27.4 24.9 22.8 21.0 19.4
Pattern FP3 72.1 61.0 53.0 46.0 40.4 36.0 32.3 29.4 26.9 24.7 22.9
Pattern FP4 77.2 65.3 56.8 49.3 43.3 38.5 34.6 31.4 28.8 26.5 24.5
Pattern FP5 80.8 68.3 59.4 51.6 45.3 40.3 36.2 32.9 30.1 27.7 25.7
Pattern FP9 86.9 73.4 63.9 55.5 48.7 43.3 39.0 35.4 32.3 29.8 27.6
Pattern FP10 90.9 76.8 66.8 58.0 50.9 45.3 40.7 37.0 33.8 31.2 28.9
Three Or
More Spans		 Pattern FP1 42.8 36.3 31.4 27.3 24.1 21.6 19.6 17.9 16.4 15.2 14.2
Pattern FP2 62.7 53.2 46.0 40.0 35.4 31.7 28.7 26.2 24.1 22.3 20.8
Pattern FP3 74.0 62.8 54.3 47.2 41.7 37.4 33.8 30.9 28.4 26.3 24.5
Pattern FP4 79.3 67.2 58.1 50.5 44.7 40.0 36.2 33.1 30.5 28.2 26.3
Pattern FP5 82.9 70.3 60.8 52.9 46.7 41.9 37.9 34.6 31.9 29.5 27.5
Pattern FP9 89.1 75.6 65.4 56.8 50.2 45.0 40.8 37.2 34.3 31.7 29.6
Pattern FP10 93.2 79.1 68.4 59.5 52.6 47.1 42.6 38.9 35.8 33.2 30.9
  1. Based on CF-42 panel with 26 ga. Flute exterior & 26 ga. Mesa interior face (min Fy = 33 ksi).
  2. For Pattern FP1, CF panel clips are fastened to minimum 14 gage steel with (2) 1/4″-14 SDS Tek 3 at interior supports and (1) 1/4″-14 SDS Tek 3 at end supports. For 12 gage or thicker steel, #12-24 SDS or 1/4″-14 SDS Tek 5′s may be used. In lieu of self-drilling screws, self-tapping screws may be used.
  3. Fastening patterns FP2, FP3, FP4 and FP5, includes CF panel clip attachment plus 1, 2, 3 or 4 Fabloks, respectively, at supports per panel width. Fab-lok spacing is 10.5″ OC from female edge of panel seam.
  4. The through fasteners (FP9) are as follows: #12-24 SDS in min 12 ga. steel; or #1/4-14 SDS in min 12 ga. steel; or #1/4-14 STS in min 14 ga. steel. 4 Fasteners with 5/8″ neoprene bonded washers per panel width @ max 8.4″ OC.
  5. The through fasteners (FP10) are as follows: #12-24 SDS in min 12 ga. steel; or #1/4-14 SDS in min 12 ga. steel; or #1/4-14 STS in min 14 ga. steel. 5 Fasteners with 5/8″ neoprene bonded washers per panel width @ max 8.4″ OC.
  6. Allowable suction load is the lowest value of panel bending strength, shear strength, deflection limit and connection strength for each fastening pattern.
  7. Allowable loads based on panel stress and deflection design criteria are derived from ASTM E72 structural testing and calculated with factor of safety of 2.5 for bending stress, 3.0 for shear stresses and deflection limitation of L/180.
  8. The panel connection strength was determined from ASTM E1592 testing and the allowable loads are calculated with factor of safety of 2.
  9. The structural capacity of the girts are not considered and must be examined independently.
  10. Consult Metl-Span for recommendations on panel profile and gage suitable for thermal stresses.
CF-42 FLUTE WALL PANEL ALLOWABLE POSITIVE LOAD (PSF)
PANEL
THICKNESS 		SPAN
CONDITION 		DESIGN
CRITERIA 		PANEL SPAN (FT)
5 6 7 8 9 10 11 12 13 14 15
2″ Thick Two
Spans		 Bending & Shear 67.6 55.2 46.6 40.2 35.4 31.6 28.6 24.4 20.3 17.2 14.7
Deflection (L/180) 68.9 54.3 44.0 36.3 30.3 25.6 21.9 18.8 16.3 14.2 12.4
Three Or
More Spans		 Bending & Shear 66.4 54.7 46.5 40.4 35.8 32.1 29.1 26.6 23.4 20.0 17.3
Deflection (L/180) 69.7 54.8 44.0 36.0 29.8 24.9 21.0 17.8 15.2 13.1 11.3
2.5″ Thick Two
Spans		 Bending & Shear 78.4 64.0 53.9 46.5 40.9 36.5 32.9 30.0 26.9 22.6 19.3
Deflection (L/180) 86.9 69.1 56.4 47.0 39.7 33.9 29.2 25.4 22.2 19.5 17.2
Three Or
More Spans		 Bending & Shear 76.7 63.0 53.5 46.4 41.0 36.8 33.3 30.5 28.0 25.7 22.2
Deflection (L/180) 87.9 69.9 56.9 47.1 39.5 33.5 28.6 24.5 21.2 18.4 16.1
3″ Thick Two
Spans		 Bending & Shear 88.1 72.0 60.6 52.3 45.9 40.9 36.9 33.6 30.8 26.6 22.6
Deflection (L/180) 103.2 82.6 67.9 56.9 48.4 41.7 36.2 31.7 27.9 24.7 21.9
Three Or
More Spans		 Bending & Shear 86.0 70.6 59.8 51.9 45.8 41.0 37.1 33.9 31.2 28.9 25.4
Deflection (L/180) 104.2 83.5 68.6 57.4 48.6 41.5 35.8 31.0 27.1 23.7 20.9
4″ Thick Two
Spans		 Bending & Shear 94.4 77.3 65.1 56.2 49.3 43.8 39.5 35.9 32.9 30.3 28.1
Deflection (L/180) 129.9 104.9 87.1 73.7 63.3 55.0 48.2 42.7 37.9 33.9 30.5
Three Or
More Spans		 Bending & Shear 92.0 75.4 63.8 55.2 48.7 43.5 39.3 35.9 33.0 30.6 28.5
Deflection (L/180) 130.8 106.0 88.0 74.5 63.9 55.4 48.4 42.6 37.7 33.5 29.9
5″ Thick Two
Spans		 Bending & Shear 108.2 88.8 75.0 64.7 56.7 50.5 45.4 41.2 37.7 34.8 32.3
Deflection (L/180) 148.4 120.7 100.8 85.8 74.2 64.9 57.4 51.1 45.7 41.2 37.3
Three Or
More Spans		 Bending & Shear 105.5 86.5 73.1 63.2 55.7 49.7 44.9 40.9 37.6 34.8 32.4
Deflection (L/180) 149.1 121.5 101.7 86.8 75.1 65.6 57.9 51.4 45.9 41.2 37.1
6″ Thick Two
Spans		 Bending & Shear 120.7 99.3 84.0 72.5 63.7 56.7 51.0 46.3 42.3 39.0 36.1
Deflection (L/180) 158.3 129.4 108.7 93.0 80.9 71.1 63.1 56.5 50.9 46.1 41.9
Three Or
More Spans		 Bending & Shear 117.9 96.8 81.8 70.7 62.2 55.5 50.0 45.6 41.8 38.7 36.0
Deflection (L/180) 158.8 130.1 109.4 93.9 81.7 71.9 63.8 57.1 51.4 46.4 42.2
  1. Based on CF-42 panel with 26 ga. Flute exterior & 26 ga. Mesa interior faces (min Fy=33 ksi).
  2. Refer to the allowable connection load chart, for suction loads, which controls support spacing requirements.
  3. Allowable positive load is the lowest value of panel bending strength, shear strength & deflection limit.
  4. Allowable loads based on panel stress and deflection design criteria are derived from ASTM E72 structural testing and calculated with factor of safety of 2.5 for bending stress, 3.0 for shear stresses and deflection limitation of L/180.
  5. The structural capacity of the girts are not considered and must be examined independently.
  6. Consult Metl-Span for recommendations on panel profile and gage suitable for thermal stresses.

Takura Steel Buildings offers metl-span insulated panels to clients across Ontario, British Columbia, Alberta, Saskatchewan, Manitoba, Quebec, New Brunswick, Newfoundland and Labrador, Yukon, Northwest Territories, and Nunavut.

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