Johns Manville Formaldehyde-Free™ FSK-25 thermal and acoustical fiberglass insulation is available in R-values up to R-30 and is offered in precut batts to fit standard wall cavities. FSK-25 faced batts combine fire resistance with excellent vapor-resistance and can be used in a wide variety of wood frame, engineered wood and steel frame construction applications, including new construction and retrofit. FSK-25 batts are designed with a foil facer that can be left exposed where codes permit.
JM Insulation Batt, 10-1/4 in Thickness, 24 in Width, 48 in Length, FSK Facing, R-Value: R30, Fiberglass, Resists: Fire, Fungi, Thermal, Vapor
| Facing Type | : | FSK |
| Length | : | 48 in |
| Material | : | Fiberglass |
| R-Value | : | R30 |
| Resists | : | Fire, Fungi, Thermal, Vapor |
| Thickness | : | 10-1/4 in |
| Width | : | 24 in |
- Effective resistance to heat transfer, with R-values up to R-30
- Will not off-gas formaldehyde in the indoor environment
- Reduces sound transmission through exterior and interior walls, floor and ceiling assemblies
- Flame spread of 25 or less and smoke developed of 50 or less
- Can be left exposed where building codes permit
- No rotting, mildew or deterioration, also non-corrosive to pipes, wiring and metal studs
- Stable bonded glass fibers will not slump, settle or break down during normal applications
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