Below are the specifications for CPBS’ C-SIS sheathing including dimensions, structural skin and insulating foam properties as well as the specific ICC-ES and ASTM test results that highlight the superior performance the C-SIS sheathing will help you achieve on your building projects. CPBS is committed to delivering the highest performance, highest quality building products, while constantly striving to improve and enhance their value to you and your home or business.
| CPBS 1 1/8″ Composite Structural Insulated Sheathing | ||
| Overall Thickness | 1-1/8” | |
| Width | 47-15/16” | |
| Standard Length | 8’-1”, 9’-1”, 10’-1” | |
| Weight | 1.72 lbs per sq. ft. | |
| R – Value | R-6 | ASTM C-518 |
| Outside Skin Properties | ||
| Type: Iso-Polyester Thermoset Composite | ||
| Thickness | 3/16” | |
| Reinforcing | Biaxal Fiberglass Mat | |
| Frame Spread | 40 | ASTM E-84 |
| Water Resistive Barrier | Grade A | ASTM E-96-05 |
| Vapor Retarder | 0.94 perms | ASTM E-96-05 |
| UV Exposure | Pass | ICC-ES AC-38 |
| Accelerated Aging | Pass | ICC-ES AC-38 |
| Water Resistance | Pass | AATCC-127 |
| Insulating Foam Properties | ||
| Type: Closed Cell Rigid Polyurethane | ||
| Thickness | 15/16” | |
| Core Density | 2.3 PCF | |
| Compressive Strength | 35 psi | |
| Tensile Strength | 58 psi | |
| Shear Strength | 28psi | |
| Closed Cell Content | > 90% | |
| Fire Rating | Class A | ASTM E-84 |
| Flame Spread | < 25 | ASTM E-84 |
| Smoke Developed | < 450 | ASTM E-84 |
| Sheathing System Testing | ||
| Joint System | ||
| Freeze / Thaw 10 Cycles | Pass | ICC-ES AC-382 |
| Water Resistance – 14 Day Exposure | Pass | ASTM D-2247 |
| Ultraviolet Light Exposure – 210 Hours | Pass | ICC-ES AC-382 |
| Accelerated Aging – 25 Cycles | Pass | ICC-ES AC-382 |
| Hydrostatic Pressure – 5Hr Hold at 55 cm | Pass | AATCC 127 |
| Peel Adhesion – 3M 8067 Flashing | 4.76 lbs/in | ASTM D3330-04 |
| Assembly Tests | ||
| Cyclic Transverse Load – 10 Positive Cycles | Pass | ASTM E-1233 |
| Restrained Environmental Cycling Test – 5 Cycles | Pass | ICC-ES AC-382 |
| Racking / Shear to 1/2” Deflection – 10 Cycles | Pass | ASTM E-72 |
| Water Penetration – 2.86 psf for 15 minutes | Pass | ASTM E-331 |
| Water Penetration – 6.24 psf for 2 Hours | Pass | ASTM E-331 |
| Racking Shear – Section 15 (Wet) – Safety Factor 3 | 198 PLF | ASTM E-72-05 |
| Negative Wind Load – Safety Factor of 1.5 | 85 psf | ASTM E-330 |
| Positive Wind Load – Safety Factor of 1.5 | 66 psf | ASTM E-330 |