Johns Manville

Johns Manville, a Berkshire Hathaway company (NYSE: BRK.A, BRK.B), is a leading manufacturer and marketer of premium-quality products for building insulation, mechanical insulation, commercial roofing, and roof insulation, as well as fibers and nonwovens for commercial, industrial and residential applications. JM serves markets that include aerospace, automotive and transportation, air handling, appliance, HVAC, pipe and equipment, filtration, waterproofing, building, flooring, interiors and wind energy. In business since 1858, the Denver-based company has annual sales of approximately $2.5 billion and holds leadership positions in all of the key markets that it serves. JM employs approximately 6,600 people and operates 40 manufacturing facilities in North America, Europe and China. Additional information can be found at


Johns Manville Filtration has been providing filtration solutions since the 1940's and offers one of the widest arrays of filtration products in the world. Employing three Technology centers globally, Johns Manville Filtration offers the best solution for any of your filtration needs.

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Glass Textile Wallcoverings:

Johns Manville weaves glass textile wallcoverings designed to enhance the beauty and versatility of walls in commercial, institutional, retail and residential buildings. JM's wallcoverings are woven in Europe and marketed throughout the world.

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Nonwoven Mats:

Johns Manville's Spunbond Polyester, a continuous filament, needle punched reinforcement mat, is one of the strongest yet lightest and most flexible engineering materials known. When incorporated into multi-layer modified bitumen roofing products, it combines to create an effective barrier against forces of the great outdoors.

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Fiber glass reinforcements:

Johns Manville is the world's market leader in chopped glass fiber reinforcement for the gypsum wallboard industry. Glass fiber reinforcement is used in gypsum wallboard to enhance its fire retardant properties, which can be crucial to saving human lives in the event of a fire. Glass reinforced gypsum wallboards may contribute substantially to fire protection in buildings of all kinds, including offices, public buildings, hotels, schools, and private homes.

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Cryogenic Insulation:

Cryo-Lite is a fiber glass blanket made of high quality fine fibers bonded with a melamine resin. It has been specifically designed to meet the unique needs of cryogenic tank manufacturers. Cryo-Lite is used to insulate cryogenic tanks containing liquefied gases, such as oxygen, nitrogen, argon and helium. It provides maximum thermal protection with minimum weight.

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JM TPO is one of the latest single ply, flat roofing materials on the market. The current membrane formulations are reinforced with a polyester fabric and manufactured using an ultraviolet-resistant thermoplastic polyolefin formulation. TPO from JM comes in two products, TPO and TPO-1, and several thicknesses. It is designed for use in mechanically fastened and adhered roofing applications in new, re-roof and re-cover roof constructions. It is fire and chemical resistant and contains UV inhibitors for added longevity.

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Johns Manville PVC is a highly-engineered, flexible, thermoplastic membrane manufactured using an ultraviolet-resistant polyvinyl chloride and a DuPont™ Elvaloy® KEE (ketone ethylene ester) formulation. It provides excellent weathering characteristics, high tensile strength and long-term flexibility. It also exhibits excellent resistance to harsh chemicals and industrial pollutants.

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Johns Manville EPDM has superior weatherability through a wide range of temperatures and conditions and demonstrates superior ozone resistance. JM EPDM membranes are available in several thicknesses, with or without polyester scrim reinforcement and can be installed in ballasted, mechanically fastened or adhered applications.

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Duct board:

Johns Manville Duct Board products provide an attractive alternative to traditional sheet metal ducts, with benefits for both building owner and occupants. The advantages of fiber glass ducts in a commercial setting include:

  • Accurate temperature control, less wasted energy
  • Resistance to dust and dirt
  • Quiet operation
  • Resistance to microbial growth
  • Resistance to condensation

These installer friendly boards have smooth surfaces and can be fabricated easily for faster installation.

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Fesco® board:

Johns Manville Fesco® Board is a homogenous insulation board, composed of expanded perlite, blended with selected binders and fibers. The expanded perlite contains air cells which provide superior insulating efficiency. The top surface of the board is sealed with a special TopLoc® coating to prevent excessive absorption of asphalt during the installation process. Fesco Board meets the physical requirements of ASTM C 728.

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Polyiso/Perlite roof insulation:

ENRGY 3® is a rigid roof insulation board composed of a closed cell polyisocyanurate foam core bonded in the manufacturing process to universal fiber glass reinforced facers. ENRGY 3 utilizes an environmentally compliant blowing agent containing pentane hydrocarbon to enhance the thermal performance of the foam insulation. This hydrocarbon has zero ozone depletion potential and conforms to the Montreal Protocol established in 1987. ENRGY 3 meets the physical property requirements of ASTM C 1289, Type II, Class I, Grade 2 and CAN/ULC S704, Type 2, Class 2. ENRGY 3 specialty products are also available as tapered panels, precut miters and precut crickets.

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Invinsa™ Roof Board:

Invinsa™ is a resilient, lightweight roof board designed as an integral component of the roof system, providing a protective layer for the insulation, while working with the membrane above to ensure maximum performance and longevity. This high-density polyisocyanurate technology is bonded in-line to mineral-surfaced, fiber glass reinforced facers. In PVC, TPO, EPDM and JMCleanBond™ roof systems, Invinsa enhances fire, water and hail resistance, and it will not support mold growth.

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Environmental friendly product (LEED Certification):

Dedicated to Developing Sustainable Products:

You want to create sustainable buildings-structures that preserve the natural environment, utilize renewable resources, use less energy, last longer and are more comfortable to be in and around. And we are here to help you fulfill that goal. As a charter member of the U.S. Green Building Council, we recognize our products are fundamental to energy efficiency—an aspect of sustainable design that is more important as global demand for energy grows. We manufacture and market products that use more recycled content, improve indoor air quality and demonstrate characteristics that contribute to sustainable innovation and design.

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