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What the material does

Mineral wool in : Microstructure

Read the condition on Mineral wool before the nickname. Year , line “Microstructure,” figure 0. Circularity is an editorial 0–100 mark relative to the other 31 materials in this atlas — not a laboratory certificate.

This atlas treats Mineral wool as a system: mill route, coatings, tests and the cavity it sits in. Conductivity note: λ ~0.032–0.040 W/m·K typical batts. Insulation score 86/100 is relative to 32 entries — metals lose, VIPs and aerogels win. Fire letter in editorial use: A1. Do not equate A1 with “safe in a blaze” or E with “illegal”. Assemblies decide.

Origin: Slag wool 19th c.; glass wool 1930s, US / Germany / Denmark. The process chapter follows feedstock → conversion → forming → finish → install. Uses span buildings to defence / safety. Pairings matter: polyurethane-foam. Circularity mark 58/100. Ask which scrap, which certificate, which year.

Related atlas entries, a short glossary, and three threads that keep Mineral wool honest. Lower λ, combustible unless protected. When service temperature exceeds stone wool. EN 13501-1 reaction-to-fire letter (A1–F), not a wall rating. Thermal conductivity in W/m·K. Lower means better bulk insulation.

The label keeps Mineral wool, , and 0. “Microstructure” is the condition on the figure.0

Figures to keep

Year of the condition
0
Property figure
0
Material
Mineral wool
Use line
Microstructure

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