JOHNS MANVILLE INSULATION
More than just a roof over your head, your home is where you relax, play and live. Make yours as comfortable and energy efficient as possible. When you install insulation, you invest in comfort and savings for your family and the life of your home. It’s all about being comfortable in your home. And
insulation products offer a variety of easy, cost-effective ways to achieve that goal. When your home stays cooler in the summer and warmer in the winter, your HVAC system runs more efficiently and can last longer. You’ll save money, use less energy and add value to your home.
Introducing Johns Manville Spider® Plus Blow-in Insulation- Next-generation blow-in insulation system features new “Interlocking Fiber Technology”


For more than 150 years, Johns Manville has focused on developing materials to make diverse environments stronger, more durable, and more energy efficient and comfortable.

JM manufactures premium-quality building and mechanical insulation, commercial roofing, glass fibers and nonwoven materials for commercial, industrial and residential applications.

JM products are used in a wide variety of industries including building products, aerospace, automotive and transportation, filtration, commercial interiors, waterproofing and wind energy.

JM Spider Plus is designed for installation by professionals using a blowing wool machine and features “Interlocking Fiber Technology,” JM’s latest building science innovation. Interlocking Fiber Technology allows the insulation fibers to spring and lock into cavities with no adhesive or netting. JM Spider Plus achieves an R-value of 15 in a 2x4 cavity and an R-23 in 2x6 walls.

Additional performance advantages include:

  • Smart engineering: Interlocking Fiber Technology expands into wall and overhead cavities, filling gaps and voids, and creating a shield against elements to achieve Grade 1 installation
  • Flexible installation: Installs and dries quickly for same-day drywall installation – saving time and money
  • Clean: Minimal dust and easy clean up on job sites compared to other spray-in systems
Johns Manville makes a variety of insulation types for every part of your home
:
Formaldehyde-Free
™
  • Blow-in Loose Fiber Glass: Typically used in unfinished attics, nonconforming spaces and hard-to-reach areas such as corners, edges and around framing. Requires a blowing machine for installation.
  • Spray Foam: This alternative to fiber glass is most commonly used in new construction. It is applied using a specific spray applicator―resulting in a thermal, air and moisture barrier. JM provides a variety of closed-cell and open-cell spray foam solutions to meet specific building and climate needs.
  • Mineral Wool: Specifically designed to deliver robust sound dampening, exceptional fire resistance and superior temperature control, it is most commonly installed in wood-stud cavities of interior and exterior walls, basements, ceilings, floors and crawl spaces.
  • Foam Sheathing: Rigid-foam-sheathing insulation for use in commercial and residential construction where continuous insulation and/or high thermal efficiency is required. JM provides sheathing solutions for both interior and exterior applications.
Fiber Glass Batts and Rolls: available in different thicknesses, R-values and widths to accommodate standard-size walls, crawl spaces, attics and more. Additionally, our different product offerings help make installation easier. Fiber glass insulation is available in many different forms, including rolls and pre-cut batts to fit all standard and non-standard wall cavities. Fiber glass comes in a variety of R-values for different applications throughout your home. Before you begin an insulation project, you should verify the size of your wall cavities (generally 16” or 24”) and attic space to calculate how much insulation you will need.
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