Insulation - Mineral Wool: Market Size & Forecast 2026

The global mineral wool insulation market reached approximately USD 18.5 billion in 2025 (base year), growing at a 4.6% CAGR through 2032 to an estimated USD 25.4 billion. Stone wool (basalt/diabase/slag-based) and glass wool (recycled-glass-based) together serve construction, industrial, and acoustic end-uses across residential walls and roofs (38% of demand), non-residential construction (27%), industrial OEM (18%), renovation and retrofit (12%), and acoustic and specialty applications (5%). Energy-intensive manufacturing - melting mineral feedstocks at approximately 1,400 degrees Celsius - makes this category structurally sensitive to natural gas and electricity price movements. A regulatory inflection is approaching: the EU Carbon Border Adjustment Mechanism embeds carbon costs on imported mineral wool under CN code 6806 from 1 January 2026, raising landed costs for non-EU producers.

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