Commodity
Index-linkedBulk Mineral wool follows a global index more than a boutique mill.
Darker cells mean a higher score for this topic on that metric.
Strength16
Heat resistance86
Fire performance96
Insulation86
Workability70
Circularity58
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Last reviewed Sources & creditsMedia creditsMethodology
Quick answers
Is Mineral wool non-combustible?
Declared reaction class in this atlas: A1. Assemblies still need resistance tests.
Does Mineral wool insulate?
Thermal mark 86/100 versus the atlas. Conductivity note: λ ~0.032–0.040 W/m·K typical batts.
What is the density band?
20–150 kg/m³ products
How is it made?
Origin story: Slag wool 19th c.; glass wool 1930s (US / Germany / Denmark).
Can it be recycled?
Circularity mark 58/100 — editorial, route-specific.
Typical melting or failure heat?
softens ~1000 °C class (stone)
heat 86 · fire 96
Prices are bands. A 2024 coil is not a 2026 contract. Labour and certification often dwarf the commodity.
Producers listed are landmarks for orientation, not a ranking or a procurement list.
Cost bands
Specified grade
PremiumTight chemistry, cleanliness or certification multiplies the unit price.
System
InstalledBoards, coats and labour dwarf kilogram prices.
Certified / medical / aero
HighestPaperwork is the product.
Trial / green route
PolicyLow-carbon or bio routes still trade on certificates.
Regions
East Asia
Volume production and finishing.
Europe
Standards (EN, Euroclass) and specialty.
North America
ASTM / NFPA language and large domestic mills.
Korea / Japan
High-spec sheet, fibres, electronics-adjacent ceramics.
Resource belts
Ore, plantations or energy that feed primary routes.
Global trade
Mineral wool moves as coils, bales, boards or chemicals — check HS codes, not vibes.
Key numbers
20–150 kg/m³ productsDensity
λ ~0.032–0.040 W/m·K typical battsThermal
A1Fire letter
86Atlas insulation
Producers
ROCKWOOL
Stone wool global.
Owens Corning
Glass wool and foam too.
Knauf Insulation
Glass and rock.
Saint-Gobain Isover
Glass wool.
Johns Manville
US.
KCC / Korean
Asian MW.
Ask for the route (primary, scrap, bio) before believing a green label.
Keep exploring
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A sealed vacuum sandwich — λ around 0.004–0.008 W/m·K until the envelope leaks.
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Overall 36