Johns Manville (JM), a Berkshire Hathaway company and leading building products manufacturer, today announced the launch of JM Spider Plus blow-in insulation, a re-engineered blow-in system and the latest addition to the industry’s most complete line of insulation products. JM Spider Plus replaces JM Spider® spray-in fiber glass insulation and is ideal for residential, commercial and manufactured buildings.
JM Spider Plus is designed for installation by professionals using a blowing wool machine and features “Interlocking Fiber Technology,” JM’s latest building science innovation. Interlocking Fiber Technology allows the insulation fibers to spring and lock into cavities with no adhesive or netting. JM Spider Plus achieves an R-value of 15 in a 2 by 4 cavity and an R-23 in 2 by 6 walls.