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CFR Roof Panels
  • Description
  • Attributes & Advantages
  • CFR Roof Panels - Material Specifications
  • Load Span Tables

Metl-Span CFR is an insulated metal standing seam roof panel, and is the foremost innovation in all-in-one composite panel design, combining durable interior and exterior faces with Metl-Span's unmatched polyurethane core.

The CFR roof panel provides exceptional benefits including a standing seam exterior face for unsurpassed weathertight performance, and panel widths contributing to installation savings because there are fewer side joints to seal. CFR roof panels are installed completely from the top side with concealed clips and fasteners placed in the side joint. Cold Storage applications may require alternate methods of attachment. Factory cut panel ends, factory notching and factory swaged ends eliminate critical and extensive field reworking and reduce erection costs. Factory installed backer plates at the endlaps also eliminate pre-drilling for special fasteners and fastener tools.


Careful design parameters have enabled Metl-Span to create an incomparable roof system that is easily and quickly installed without dependence on highly skilled labor.

Exterior Profile:

2" high standing seam with Mesa profile between the seams

Interior Profile:

Mesa, nominal 1/8" deep

Panel Core:

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

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

Module Width:

30", 36", 42"

Panel Thickness:

2", 2 1/2", 3", 4", 5", 6"

Panel Lengths:

9'-6" to 53'-0"

Exterior Facings:

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

Panel Joint:

Mechanically closed single lock standing seam at the exterior side joint. The interior side joint is a single tongue and groove interlock

Fastening:

Two-piece clip with fasteners concealed in the side joint. Cold Storage applications may require alternate methods of attachment. Contact the factory.

Uplift Performance:

UL 90 rated, FM Approvals Standard 4471, and Florida Building Code approved. Dade County NOA No. 09-0310-10

Color:

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

FM Approved Class 1 with no height restrictions.

Star Shield
Superior Insulating Value across the entire wall and roof area is assured with Metl-Span panels. The advanced polyurethane core provides enhanced insulation values that significantly lowers heating and cooling costs.

One-Piece Construction process assures rapid completion of the wall and roof system. Factory fabricated composite panels are attached directly to the supporting structure and multiple steps to construct the insulated wall and roof are eliminated. Faster building completion means reduced construction and interim financing costs.

Lightweight yet Structurally Strong panels weigh only 2 ½ to 3 ½ pounds per square foot, but are structurally strong enough for long spans that can significantly reduce costs for frame support.

Impermeable Faces & Built-in Thermal Breaks ensure the highest insulating values are maintained for the life of the building. Panels are manufactured with impermeable faces and when installed the insulation is completely encapsulated by metal trim that creates an impermeable membrane on all sides of the panel. The aged "R" values are comparable to the initial "R" values many years after the buildings original completion. Assured thermal values mean lower heating and cooling costs.

Class 1 Polyurethane Foam meets the requirements of the major model building codes for many types of construction. Unlike panels with expanded polystyrene cores they will not produce a self-propagating fire. Local building codes may require automatic fire suppression systems for most installations.

Concealed Attachment with clips and fasteners at the side joint of the panel
offers a clean high profile appearance. No more barn like metal building looks.

Metl-Span are Lightweight, yet very strong and durable attributing to reduced costs for erection and structural support.

Star Shield
Exterior Profile: 2" high standing seam with a Mesa Wave pattern, nominal 1/8" deep, between the seams.
Interior Profile: Mesa wave pattern, nominal 1/8" deep.
Light Mesa wave pattern, nominal 1/16" deep.
Foam Core: Foamed-in-place, Non-CFC & zero ODP polyurethane, Factory Mutual Class 1 approval.
Thermal Values: R-Values with Air Films   75° Mean 40° Mean
2" Panel 15.14 17.03
2-1/2" Panel 18.71 21.29
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: 30", 36" & 42"
Panel Thickness: 2", 2-1/2", 3", 4", 5" & 6"
Panel Lengths: Standard 9'-6" to 50'-0".
Horizontal Application Reveal Widths:  
Exterior Facings: Stucco embossed, G-90 galvanized and/or AZ-50 aluminum-zinc coated steel in 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.
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.
Joint: Mechanically closed single lock standing seam at the exterior side joint.  The interior side joint is a single tongue and groove interlock.
Fastening: Two-piece clip with fasteners concealed in the side joint.  Cold Storage applications may require alternate methods of attachment.  Contact Metl-Span.
Uplift Performance: UL 90 rated, Factory Mutual 4471, FM 1-90 windstorm and Florida Building Code approved.
Dade County NOA No. 03-0707.03.
FM Approved Class 1 with no height restrictions, 2"- 6" thick.
CFR-42 ROOF SYSTEM ALLOWABLE UNIFORM LOAD CHART
CFR PANEL
THICKNESS
DESIGN
CRITERIA
ALLOWABLE LOAD (PSF)
PANEL SPAN (FT)
2.5 3.0 4.0 5.0 6.0 7.0
42" WIDE, 2" THICK
2 FASTENERS/CLIP
BENDING & SHEAR 143.8 118.0 86.2 67.7 55.7 47.3
DEFLECTION (L/240) 120.3 98.3 70.6 53.8 42.4 34.3
CONNECTION 58.5 53.5 46.8 42.5 34.5 28.5
42" WIDE, 2.5" THICK
2 FASTENERS/CLIP
BENDING & SHEAR 165.5 135.8 99.3 77.9 64.0 54.3
DEFLECTION (L/240) 147.5 121.0 87.6 67.4 53.7 43.9
CONNECTION 65.0 58.5 50.3 45.1 36.6 30.4
42" WIDE, 3" THICK
2 FASTENERS/CLIP
BENDING & SHEAR 184.9 152.0 111.2 87.2 71.5 60.6
DEFLECTION (L/240) 171.5 141.1 102.8 79.6 63.9 52.7
CONNECTION 71.3 63.5 53.6 47.6 38.7 32.2
42" WIDE, 4" THICK
2 FASTENERS/CLIP
BENDING & SHEAR 196.2 161.6 118.6 93.0 76.2 64.5
DEFLECTION (L/240) 210.0 173.4 127.3 99.4 80.6 67.2
CONNECTION 84.0 73.4 59.9 51.8 42.4 35.7
42" WIDE, 5" THICK
3 FASTENERS/CLIP
BENDING & SHEAR 223.1 184.2 135.6 106.5 87.3 73.8
DEFLECTION (L/240) 235.4 194.9 143.8 112.9 92.2 77.3
CONNECTION 86.5 75.5 61.8 53.4 44.4 37.9
42" WIDE, 6" THICK
3 FASTENERS/CLIP
BENDING & SHEAR 247.2 204.5 151.0 118.9 97.6 82.5
DEFLECTION (L/240) 247.8 205.4 152.2 120.1 98.5 82.9
CONNECTION 88.8 77.6 63.5 55.0 46.3 40.0
  • Based on CFR-42 panel with 24 ga. exterior face (min Fy = 50 ksi) and 26 ga. interior face (min Fy = 33 ksi).
  • Based on attachment at interior supports with CFR panel clip and (2 or 3 as shown above) 1/4″-14 Self-Drilling Tek 3 screws in min. 14 gage steel or (2) 1/4″-14 Self-Drilling Tek 3 screws in min. 12 gage steel. Two fasteners per clip are required at end supports.  In lieu of self-drilling screws, self-tapping screws may be used.
  • Allowable positive load is the lowest value of panel bending strength, shear strength & deflection limit.
  • Allowable suction load is the lowest value of panel bending strength, shear strength, deflection limit and connection strength for each fastener pattern.
  • Connection loads may be increased with Fablok.  Consult Metl-Span for additional loads.
  • The loads based on panel stress and deflection design criteria are derived from ASTM E-72 structural testing. The allowable loads are calculated with a factor of safety of 2.5 and 3.0 for bending and shear stresses, respectively, and deflection limitation of L/240 and with a factor of safety of 2.0 for connection strength.
  • The clip fastener capacity was determined from manufacturer fastener pullout data and the allowable loads are calculated with a factor of safety of 3.0.
  • The structural capacity of the purlins are not considered and must be examined independently.
  • Multiple spans are based on 3 or more spans conditions.
  • For allowable snow loads please consult factory.