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Formaldehyde-free Insulation

Johns Manville has launched JM Formaldehyde-free™ Cavity- Shield™, an NFPA 13 compliant, fiberglass batt insulation for use in the concealed spaces of multifamily buildings. Cavity-Shield provides an alternative solution to sprinklers in the interstitial space.


Cavity-Shield fiberglass batts are a noncombustible insulation product made of long, resilient glass fibers bonded with thermosetting resin. The batts are designed for use in concealed spaces between floors, serving as a passive fire solution for limiting potential flame spread between and through floors.


When installed per the NFPA 13, Cavity-Shield eliminates the need for sprinkler systems within concealed floor spaces, saving construction time and money and eliminating long-term maintenance and water leaks.


Batts are friction-fit into cavities, without the need for special equipment, reducing the time and resources required for installers to complete the job.


Available in a range of thicknesses, Cavity-Shield can be easily cut with a standard utility knife to fit in any cavity size.


Cavity-Shield is another option for construction professionals looking for passive fire protection and a cost-effective alternative to blow-in or sprinklers in the interstitial space.


Fiberglass has proven to withstand the life of the project and will not rot, mildew or deteriorate.


JM Formaldehyde-free™ insulation products promote higher indoor air quality and environments while also limiting exposure to harmful volatile organic compounds.


Cavity-Shield offers the same acoustical reduction benefits between floors when compared to other JM insulation products.

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