Johns Manville formaldehyde-free unfaced thermal and acoustical insulation offers R-values up to R-49. It reduces sound transmission through walls, ceilings and floors, and can be added to existing insulation. JM insulation is compression-packaged for space savings, and is offered in precut batts to fit standard wall cavities for both vertical and horizontal applications.
- Fiberglass batt insulation for use in 2x6 wood-framed walls, floors, and crawlspaces
- Unfaced fiberglass batts do not have a vapor barrier and can be added to existing insulation
- Improves energy efficiency and provides sound control
- Batt insulations are pre-cut for use in standard 9-ft walls with 16-in on-center stud spacing
- Simple to install, press in place between studs
- Will not rot, mildew or deteriorate and is noncorrosive to pipes, wiring and metal studs
- JM is a partner of the Seal and Insulate with ENERGY STAR program
- SCS Recycled Content certification
- GREENGUARD Gold Certified for office indoor air quality and SCS Certified for home indoor air quality
Login / Signup 
Full Description & Specs