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R-38 12" X 24" X 48" JOHNS MANVILLE UNFACED WOOD U1373 (72)

Batt Insulation

  • Manufacturer: Johns Manville
  • Brand: JM
  • DI Part #: BRFI38244812UWJ
  • Manufacturer Part #: 90009943

JM Building and Residential Fiberglass, Insulation Thickness: 12 in, Material: Fiberglass, Length: 48 in, Width: 24 in, R-Value: 38, Application: For New Construction, Remodels, Walls, Floors, Ceilings, Basements, Attics and Crawlspaces, Temperature Rating: 850 deg F, Flame Spread Index: <25, Smoke Developed Index: <50, Water Vapor Sorption: <5 %, For Use With: Wood Stud Framing

Application   : For New Construction, Remodels, Walls, Floors, Ceilings, Basements, Attics and Crawlspaces

Flame Spread Index   : <25

For Use With   : Wood Stud Framing

Insulation Thickness   : 12 in

Item Name   : Building and Residential Fiberglass

Length   : 48 in

Material   : Fiberglass

R-Value   : 38

Smoke Developed Index   : <50

Temperature Rating   : 850 deg F

Water Vapor Sorption   : <5 %

Width   : 24 in

JM formaldehyde-free thermal and acoustical insulation is made of long, resilient glass fibers bonded with a thermosetting resin. A wide range of thermal resistance R-values is available to provide thermal control for both vertical and horizontal applications.

  • Formaldehyde-free - will not off gas formaldehyde in the indoor environment
  • Thermally efficient - provides effective resistance to heat transfer with R-values upto R-49 (RSI-8.6)
  • Sound control - reduces transmission of sound through exterior and interior walls and floor or ceiling assemblies
  • Durable inorganic glass - will not rot, mildew or deteriorate and is non-corrosive to pipes, wiring and metal studs
  • Superior performance - bonded glass fibers are dimensionally stable and will not slump within the wall cavity, settle or break down during normal applications

Standards/Certifications: ASTM C665 Type I|ASTM E136|IBC|Energy Star Certified|Greenguard Gold Certified|Indoor Air Quality Certified|NAIMA 16 CFR Part 460|Recycled Content Certified