CF Tuff-Cast™

CF Tuff-Cast is a Metl-Span insulated metal wall panel with the look of finished precast concrete. It has a double tongue-and-groove joint and a polyisocyanurate (PIR) foam core, and it is coated with the Tuff Cote finish system, a hard aggregated fiber-reinforced polymer. It is used for commercial and industrial exterior walls in the United States. The page lists vertical or horizontal textures and a variety of colors.

Tuff-Cast shares its data sheet with CF Tuff Wall. It sits with other insulated metal wall panels in the manufacturer's concealed-fastener wall range.

• Coverage widths: 36 in. and 42 in.
• Thicknesses: 2, 2-1/2, 3, 4, 5 and 6 in.
• Horizontal lengths: 8'-0" to 32'-0"
• Vertical lengths: 8'-0" to 40'-0"

The Tuff Cote exterior texture is a hard aggregated, fiber-reinforced polymer coating applied at the factory over stucco-embossed steel. The finishes recorded are Applied Finishes and Igloo White.

The steel is G-90 galvanized and/or AZ-50 aluminum-zinc coated, in 24 and 22 gauge on the exterior and 26, 24 and 22 gauge on the interior. The interior profile is Light Mesa, nominally 1/16 in. deep.

• Exterior texture: Tuff Cote finish system, a hard aggregated fiber-reinforced polymer coating applied at the factory
• Finish options recorded: Applied Finishes and Igloo White
• Metallic finishes can show color shift, shade variance, striations and longitudinal patterning
• Light Stone in the Tuff Cote system does not match Light Stone in the Standard SP offering

The 2, 2-1/2, 3 and 4 in. panels have a plain exterior with the Tuff Cote system. The 5 and 6 in. panels have a Mesa exterior profile nominally 1/8 in. deep.

The offset double tongue-and-groove joint has an extended metal shelf for positive face fastening and forms a barrier that is air, vapor and water resistant. The panels use concealed clips, which eliminate thermal short circuits. The V6 X-Span Clip is listed with the panel. A 10-year limited exterior finish warranty applies to the Tuff Cote finish.

The foam core has a k-factor of 0.112 BTU·in/hr·ft²·°F at 35°F mean core temperature (ASTM C518). Panel values for a 42 in. width follow.

• 2 in.: 0.058 U, 17.9 R
• 2-1/2 in.: 0.045 U, 22.4 R
• 3 in.: 0.038 U, 26.9 R
• 4 in.: 0.028 U, 35.9 R
• 5 in.: 0.022 U, 44.8 R
• 6 in.: 0.019 U, 53.8 R

In the United States the panel was tested to ASTM E84 (flame spread under 25, smoke developed under 450), ASTM E119 (one hour non-load bearing with two layers of Type X gypsum), NFPA 285-19 (assembly met the standard) and NFPA 286 (met IBC Section 803.1.2.1). It is FM 4880 Class 1 approved.

In Canada the listed results are CAN/ULC S101 (one hour non-load bearing with two layers of Type X gypsum; 10 minute stay-in-place), S102, S134 and S138.

Air leakage is below 0.04 cfm/ft² at 1.57 psf by ASTM E283 and after 2,000 pressure cycles by ASTM E2357. Water penetration testing to ASTM E331 showed no uncontrolled leakage at 6.24 psf for 2 hours. The panel has State of Florida approval, which excludes HVHZ.

• Specification section: MasterFormat 2012 Section 07 42 13.19
• Load tables are based on Allowable Stress Design (ASD); a 2019 load chart is published for the panel
• Thermal values are based on ASTM C518, ASTM C1363 and thermal modeling

• Base: H-BE-01 extended trim leg, H-BE-02 overhang with drip edge, H-EB-01 flush extruded base
• Corners: H-CE-01 outside, H-CE-02 inside, H-CE-03 formed, H-CE-04 trimless inside, H-EC-01 extruded outside
• Eave, parapet and soffit: H-BE-03 wall and soffit
• Header, jamb and sill: H-EW-01, H-EW-02, H-EW-03, H-WH-01, H-WJ-01, H-WS-01
• Joints: H-JT-01 and H-JT-02 side joint, H-VJ-01 vertical joint with gasket, H-VJ-02 vertical joint with wet seal
• Vertical: C&I CF Vertical Detail Book, in PDF and CAD