Adjustable - Can easily be modified to fit both 16" and 24" on center cavities.
Venting - Help optimize performance of attic insulation by minimizing wind washing, prevent blown insulation from blocking the air-flow, keep the space between soffit vents and attic space open during construction and maintain air channels over time.
Installation - Can be installed in finished or unfinished attics with open rafters in both new and retrofit construction.
Explore our Building Insulation tools, education and training programs built specifically to aid you in your professional development.
Insulation Calculator
From attics to basements and kitchens to bedrooms, this insulation calculator tool will help you find the insulation that fits your needs.
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TechConnectSM
Whether you need compliance answers, consultations, spec recommendations, online trainings, technical product assistance or something else, we have a range of services and solutions to keep your job moving.
The Source: Building Insulation Resource Library
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SmartBinder Resource Library
Your resource for all JM documents in one place.
Where to Buy
Use our insulation locator tool to find JM products near you.
Inflation Reduction Act
Beneficial tax credits for new homes and upgrades.
Title 24 Resource Page
For high performance attics and walls.
Cavity-SHIELD™ Resources
Multi-family, concealed-space, noncombustible fiberglass batts resources.
Continuous Insulation Solutions
Offering optimal performance and efficiency through and through.
Homeowner Insulation
Johns Manville makes insulating your home easy with high-quality products and installation guides.
Spray Foam Resource Page
complete line of spray polyurethane foam (SPF) insulation solutions provides superior thermal energy efficiency, as well as advanced air and sound control.
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