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Johns Manville Introduces SPF Insulation

Wednesday, June 2, 2010

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Johns Manville Company introduced JM ocSPF insulation, a low-density polyurethane open-cell spray foam insulation designed for use in commercial and residential applications.

The company also announced the introduction of an intumescent ignition-barrier coating for application over the SPF insulation.

Recommended for use in walls, floors, unvented and vented attics, and ceilings, the spray-applied foam can insulate cavities of any shape, creating a seamless protective air barrier that minimizes or eliminates air leakage for maximum building envelope performance, the company says.

The SPF insulation maintains its insulating performance over time, and when properly installed, adheres to a variety of substrates and fills gaps and cracks that lead to air and heat transfer, the company says.

The insulation is mold and mildew resistant, minimizes sound transmission, and is reported to provide an R-value of 3.8 at 1-inch thickness, R-13 at 3.5 inches, and R-19 at 5.5 inches. The SPF is considered an air-impermeable insulation at a thickness of 3.5 inches.

The SPF can be applied at up to 6 inches per pass and, when properly installed, expands 120 times its initial volume, sealing voids, gaps, and crevices. The product is formulated with 100% reactive catalysts to minimize emissions during spraying, resulting in lower odor and improved safety for installers, the company says.

Also introduced was JM IB Coating, an intumescent ignition-barrier coating recommended for use over the SPF insulation in unvented attic and crawl-space applications. The coating is reported to function as an effective ignition barrier over the SPF insulation at a minimum application rate of 0.6 gallons per 100 square feet.

The company last year introduced JM Corbond III™ insulation, described as a premium high-yield closed-cell spray-foam insulation product. Also a polyurethane foam, the product can be used alone or in hybrid systems to create customized insulation systems for residential, commercial, and industrial applications.

   

Tagged categories: Coatings manufacturers; Insulation; Johns Manville; Spray polyurethane foam

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