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R19 6 1/2 in x 24 in x 48 in Johns Manville FSK-25 Insulation

R19 6 1/2 in x 24 in x 48 in Johns Manville FSK-25 Insulation Add to Quote autorenew

R19 6 1/2 in x 24 in x 48 in Johns Manville FSK-25 Insulation


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.

  • Thermally Efficient: Effective resistance to heat transfer, with R-values up to R-30.
  • Formaldehyde-free: Will not off-gas formaldehyde in the indoor environment.
  • Sound Control: Reduces sound transmission through exterior and interior walls, floor and ceiling assemblies.
  • Fire-Resistant: Flame Spread of 25 or less and Smoke Developed of 50 or less. Can be left exposed where building codes permit.
  • Resilient Inorganic Glass: No rotting, mildew or deterioration. Also noncorrosive to pipes, wiring and metal studs.
  • Superior Performance: Stable bonded glass fibers will not slump, settle or break down during normal applications.

144 sq ft

Code: 90005252

For California Residents:

WARNING:Cancer and Reproductive Harm -

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