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Metal Building
Johns Manville is dedicated to bringing you the quality materials and expertise required for insulating metal buildings. With insulation products that carry assured R-values and post recovery, coupled with excellent customer service, we can help you deliver exceptional quality for projects ranging from small metal garages to large manufacturing spaces.
Metal Building


Johns Manville Microlite? L Formaldehyde-free? blanket insulation offers an R-Value of up to R-30 and comes in unfaced rolls designed for lamination to a wide range of vapor-retarding facings. Microlite L insulation provides excellent thermal and acoustical performance and can be used in new construction and retrofit applications in pre-engineered metal buildings.
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ADVANTAGES
Formaldehyde-free:?Will not off-gas formaldehyde in the indoor environment.
Thermally Efficient:?Provides effective resistance to heat transfer with R-values up to R-30.
Sound Control:?Reduces transmission of sound through roofs and walls of metal buildings.
Fire Resistant: Flame Spread of 25 or less and Smoke Developed of 50 or less.
Durable Inorganic Glass:?Will not rot, mildew or deteriorate and is noncorrosive to pipes, wiring and metal studs.
Superior Performance: Bonded glass fibers are dimensionally stable and will not slump within the wall cavity, settle or break down during normal applications.

Flame Spread | ASTM E84 | ≤ 25 |
Smoke Developed | ASTM E84 | ≤ 50 |
Noncombustible | ASTM E136 | Pass |
Sound Absorption | C423 | Pass |
Data Sheet
Microlite L Data Sheet
Literature
Metal Building Insulation Sell Sheet


Johns Manville PEBS Unfaced Filler Blanket Formaldehyde-Free? insulation offers an R-Value of up to R-49, with sound control and fire resistance for roofs and walls. PEBS is an economical, general-purpose fiberglass designed as filler material for use in both new construction and retrofits of pre-engineered metal buildings. It’s easy to cut with a utility knife and the blanket can be friction-fit easily in standard pre-engineered metal framing.
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ADVANTAGES
Formaldehyde-free:?Will not off-gas formaldehyde in the indoor environment.
Thermally Efficient:?Provides effective resistance to heat transfer with R-values up to R-49.
Sound Control:?Reduces transmission of sound through exterior and interior walls and floor or ceiling assemblies.
Fire Resistant: Flame Spread of 25 or less and Smoke Developed of 50 or less.
Durable Inorganic Glass:?Will not rot, mildew or deteriorate and is noncorrosive to pipes, wiring and metal studs.
Superior Performance:?Bonded glass fibers are dimensionally stable and will not slump within the wall cavity, settle or break down during normal applications.

ASTM Standards | ASTM C991 | Pass |
Flame Spread | ASTM E84 | ≤ 25 |
Smoke Developed | ASTM E84 | ≤ 50 |