Johns Manville (JM), a Berkshire Hathaway Co. and building products manufacturer, launched the JM Spider Plus blow-in insulation, a re-engineered blow-in system and an addition to the industry’s 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.
Additional performance advantages include:
- Smart engineering: Interlocking Fiber Technology expands into wall and overhead cavities, filling gaps and voids, and creating a shield against elements to achieve Grade 1 installation
- Flexible installation: Installs and dries quickly for same-day drywall installation—saving time and money
- Clean: Minimal dust and easy clean up on jobsites compared to other spray-in systems