R40x24" Fiberglass Batt - Johns Manville

Johns Manville R40 fiberglass batts provide exceptional thermal resistance, making them an ideal choice for attics, cathedral ceilings, and other applications where maximum energy efficiency is required. Designed to fit 24" on-center framing, these batts deliver consistent coverage that reduces heat loss and helps lower energy costs year-round.

Crafted from durable fiberglass, they are naturally non-combustible and resistant to mold and mildew, ensuring both safety and long-term performance. Lightweight and easy to handle, the batts install quickly while maintaining their shape for a secure fit.

A trusted solution for high-performance builds, Johns Manville R40 insulation helps create comfortable, energy-efficient spaces that stand the test of time.

-Material: Fiberglass
-Coverage: 48 Sqft
-Thickness: 11.3"
-Width: 24"
-Length: 48"
-Framing: Wood
-Batts: 6 Pieces