Johns Manville Corbond III® closed-cell spray polyurethane foam insulation offers and R-Value of R-7 per inch and can be applied in a single pass to a maximum of 3.5 inches, providing superior thermal performance with seamless air sealing and moisture control in a single step. Multiple immediate passes, with no wait time, may also be applied. With high yield and excellent adhesion, it’s an ideal choice for high-performing energy efficient commercial, residential and industrial applications.


Complete Coverage: Expands and adheres without shrinking or settling.

Energy-Efficient: Reduces air and moisture infiltration to the building envelope and provides continuous coverage for high thermal performance.

Air Barrier: Prevents leaks when installed at 1” thickness or more.

Moisture Performance: Resists mold growth; meets current vapor retarder codes.

Wide Application Temperature Range: Can be applied between 20°F and 120°F , delivering consistent performance with seasonal versatility.

Faster Installation: Spray easily in a single pass from a minimum of .5″ to a maximum of 3.5”. Multiple immediate passes, with no wait time, may also be applied. See Data Sheet for complete information.

Commercial Approvals: NFPA 285 assembly approvals. Appendix X approval for application in unoccupied attics and crawl spaces without a prescriptive ignition barrier or coating.