Johns Manville Formaldehyde-free™ Unfaced Fiberglass Batt Insulation is a thermal and acoustical fiberglass batt product for wood and steel framing cavities where unfaced insulation is specified.
- Formaldehyde-free™ fiberglass insulation
- Unfaced batts for thermal and acoustic applications
- Available in multiple R-values and cavity sizes
- Useful for walls, floors, and ceiling assemblies
- Sold by the bag with variation-specific coverage
Built for Unfaced Batt Applications
This product family is designed for contractors who need unfaced fiberglass batts across common wood and steel stud cavity sizes. Select the R-value and size that matches the assembly.


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