MFS

Adding Mighty Fire Breaker To The Trusses Makes This Assembly Even Better

Blog 1

Adding Mighty Fire Breaker To The Trusses Makes This Assembly Even Better

October 25, 2018 by Steve Conboy

When installed per the NFPA 131, Cavity-SHIELD eliminates the need for sprinkler systems within concealed floor spaces, saving construction time, money, eliminating long-term maintenance and waterleaks.

“Johns Manville is committed to ensuring customers have the product options available matched to their specific needs, and we recognized an opportunity to create an alternative fire protection product for customers with Cavity-SHIELD insulation batts,” said Mandy Schweitzer, Senior Product Manager at Johns Manville. “Offering a batt product that combines passive fire protection with the high-quality standards customers expect from Johns Manville, allows for flexibility in project options, ultimately saving both time and resources.”

The company pointed to additional product advantages, including:

  • Simple installation: Batts are friction-fit into cavities, without the need for special equipment, reducing the time and resources required for installers to complete the job;
  • Smart engineering: Available in a wide range of thicknesses, Cavity-SHIELD can be easily cut with a standard utility knife to fit in any cavity size;
  • Cost-effective alternative: 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;
  • and Durability: Fiberglass has proven to withstand the life of the project and will not rot, mildew or deteriorate.


  • Johns Manville is a Berkshire Hathaway company, and a leading manufacturer and marketer of products for building insulation, mechanical insulation, commercial roofing, and roof insulation, as well as fibers and nonwovens for commercial, industrial and residential applications.

    M-Fire has created a new white paper report to help builders in this labor shortage. One of the hot topics refers to how high density multifamily projects will benefit today by using more top chord bearing floor trusses over I joist which require cutting in the field as opposed to truss that arrive ready to install. M-Fire is now calling on Truss Plants and Wall Panel plants to help them with the fire treatment of lumber that must be Class A FRT.

    Copyrights 2018 @ M Fire Suppression Inc.