Thermally Efficient: Effective resistance to heat transfer with R-values up to R-30.
Fire-Resistant: Melting point in excess of 2000˚F (1093˚C). Flame Spread of 0 and Smoke Developed of 0.
Durable Inorganic Glass: No growth of fungi. No sustaining of vermin.
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| ASTM Standards | ASTM C665 | Type I |
| Thermal Resistance | ASTM C518 | R-15, R-23, R-30 |
| Flame Spread | ASTM E84 | 0 |
| Smoke Development | ASTM E84 | 0 |
| Critial Radiant Flux | ASTM E970 | > 0.12 W/cm2 (0.11 Btu/ft2s) |
| Water Vapor Sorption | ASTM C1104 | 5% or less by weight |
| Odor Emission | ASTM C1304 | Pass |
| Corrosiveness | ASTM 665 | Pass |
| Fungi Resistance | ASTM C1388 | Pass |
| Combustion Characteristics | ASTM E136 | Pass |
Mineral Wool Document Library
Access the JM Mineral Wool product document library for data sheets, safety data sheets (SDS), literature and more.
Tech Connect
TechConnect is JM’s team of insulation experts here to make your job easier. With FREE online, oncall and onsite service available wherever you are, the information you need is always nearby. 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
The Source is where we house the latest Insulation Intel® on industry trends, insights, and continuing education opportunities. This is a resource built specifically to aid you in your professional development. Explore our webinars, compare specs, and follow our blog all right here at The Source.
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
Proper insulation is essential in creating an efficient and comfortable home. The good news is that through the Inflation Reduction Act, there are tax credits for both new homes and upgrades to existing homes, and those tax credits can benefit everyone including contractors.
Title 24 Resource Page
With the broadest product offering in the insulation industry and more than 160 years of experience, Johns Manville is your expert building partner. Our building science knowledge and network of skilled contractors can help you meet or exceed new Title 24 requirements, providing more comfortable and energy efficient homes.
Insulating One of the Largest Residential Projects in Seattle
An insulation contractor overcomes challenging logistics to successfully complete one of the largest residential projects in Seattle’s history.
