Denver, Colorado -- A new polyurethane-foam system should minimise emissions during spraying, according to its developers, Johns Manville, a Berkshire Hathaway company and building insulation specialist.
Introduced under the designation JM ocSPF, the low-density polyurethane open-cell spray foam insulation uses 100-percent reactive catalysts to "minimise emissions during spraying," a 27 May company statement said.
Recommended for walls, floors, unvented and vented attics and ceilings, JM ocSPF insulation will insulate cavities of any shape, creating a "seamless" protective air barrier that minimises or eliminates air leakage for maximum building envelope performance, JM claims.
"Now, JM customers can order both glassfibre insulation and closed- and open-cell foam efficiently from a single manufacturer, and with the reassurance that they are receiving quality products from Johns Manville," said Mike Lawrence, vice president and general manager for JM's Insulation Systems business.
JM claims its ocSPF product minimises sound transmission and provides an R-value of 3.8 at 1 inch foam thickness, R-13 at 3.5 inches, and R-19 at 5.5 inches. It is considered to be an air-impermeable insulation at a thickness of 3.5 inches and above, the company added.
According to JM, the insulation can be applied at up to 6 inches per pass and, when properly installed, the product expands 120 times its initial volume, sealing voids, gaps and crevices. (RD)"
