Process energy / dust
Mills, fibres, isocyanates, metal fume or silica — name the actual agent.
Darker cells mean a higher score for this topic on that metric.
Strength16
Heat resistance86
Fire performance96
Insulation86
Workability70
Circularity58
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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
Safety here is encyclopedia, not a workplace assessment. Name the agent: dust, isocyanate, fibre, fume, moisture, fire.
Fire class A1 is reaction language unless an assembly test is cited.
Hazards
In service
Corrosion, moisture, UV or creep silently retire sections.
Fire products
Smoke, drip, fibres or toxicants depend on chemistry.
Cut / puncture
Handling injuries are more common than brochure failures.
Mis-specification
The wrong grade is the most expensive hazard.
Fire class
Reaction
A1
Resistance
Assemblies (EI, R, Type X) are not implied by the material letter.
Test families
EN 13501, ASTM E84, ISO 5660, KS F 2271 — they do not equal each other.
People vs structure
Clothing FR and steel R-ratings are different professions.
Environment
Carbon / energy
Primary production is energy-heavy; ask for a route, not a slogan.
Toxics / fibres
Additives, dusts and processing aids (not always the polymer backbone) drive regulation.
Water
Process water, leachate or moisture swelling.
End of life
Sortability beats theoretical recyclability.
Handling
Store dry and labelled
Grade mix-ups scrap lots.
PPE for the actual agent
Fibres, isocyanates, UV, sharp edges — not a generic “chemicals” pictogram.
Do not improvise fire class
Coatings and cavities change the letter.
Follow the WPS / DFT / compression
Installation is in the specification.
Codes move. Recheck KS, JIS, EN, NFPA and IBC editions for the job’s jurisdiction.
Keep exploring
More in Thermal
🧽
Polyurethane foam
The low-λ organic foam of fridges and buildings — excellent insulation, a fire design problem unless PIR and coverings are honest.
Overall 46 📦Vacuum insulated panel
A sealed vacuum sandwich — λ around 0.004–0.008 W/m·K until the envelope leaks.
Overall 44 🕯️Phase-change material
Latent-heat packets that flatten temperature swings — not a substitute for λ insulation, a complement.
Overall 36