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Johns Manville Insulation — Certified Performance for Every Project

From R-13 fiberglass batts to polyisocyanurate roofing insulation, our specification-grade products deliver documented thermal performance backed by 166 years of material science.

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166+ Years of Experience
3,000+ Product SKUs
40+ Countries Served
40+ Manufacturing Plants
ISO 9001 Quality Certified
GREENGUARD Gold Certified
UL Listed Fire Safety Tested
ENERGY STAR Partner Program
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Trusted by Industry Professionals

Specification-Grade Products

Engineered Insulation & Roofing Systems

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Featured Product Line

ComfortTherm® Fiberglass Insulation

R-11 through R-38 batts available in kraft-faced, unfaced, and encapsulated versions. No itch fiber technology, formaldehyde-free binder system, GREENGUARD Gold certified.

R-11 to R-38 GREENGUARD Gold Formaldehyde-Free
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ComfortTherm Fiberglass Insulation
Mineral Wool Insulation
Mineral Wool Insulation
Fire-rated semi-rigid and rigid boards, operating temp up to 1200°F, non-combustible core
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Roofing Insulation
Commercial Roofing Systems
Polyiso, TPO, EPDM, and PVC roofing systems with certified contractor network
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Pipe Insulation
Pipe & Mechanical Insulation
Pre-formed sections for hot, cold, and high-temperature process piping applications
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Duct Wrap Insulation
Duct Wrap & Duct Liner
Flexible and rigid duct insulation systems for HVAC thermal and acoustic control
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Environmental Responsibility

Building a Lower-Carbon Future

Johns Manville insulation products deliver a significant energy payback: the embodied carbon in manufacturing is typically recovered within the first 4–8 months of building operation through reduced heating and cooling loads.

Our manufacturing facilities have reduced water consumption by 23% since 2018 through closed-loop cooling systems. All fiberglass products contain a minimum of 30% post-consumer recycled glass content.

Our Sustainability Commitments
30%+ Recycled Glass Content in Fiberglass Products
23% Water Use Reduction Since 2018
4–8 mo Typical Embodied Carbon Payback Period
LEED Contributions to Multiple Credit Categories
Sustainable commercial building with Johns Manville insulation systems
Market Coverage

Industries We Serve

Our engineered insulation and roofing solutions address the specific thermal, acoustic, and fire-safety requirements of every major construction sector.

Commercial Construction

Office towers, retail centers, warehouses, and mixed-use developments requiring code-compliant building envelope insulation.

Residential Building

Single-family and multi-family construction with ComfortTherm batts, blown-in solutions, and attic insulation systems.

Industrial Facilities

Process piping insulation, vessel jacketing, and high-temperature mineral wool for refineries, chemical plants, and power generation.

HVAC & Mechanical

Duct wrap, duct liner, and flexible pipe insulation for commercial and industrial HVAC systems with thermal and acoustic performance.

Roofing & Waterproofing

Complete single-ply and polyiso roofing assemblies tested for wind uplift, fire resistance, and long-term energy performance.

Cold Storage & Cryogenics

Low-temperature and cryogenic insulation systems for food processing, pharmaceutical cold chain, and liquefied gas storage.

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