Glass Wool Insulation: Market Size & Forecast 2026

The global glass wool insulation market reached approximately USD 14.2 billion in 2025 (base year), growing at a 5.3% CAGR through 2032 to a forecast endpoint of roughly USD 20.3 billion. The category sits in a structurally tight balance: European demand is constrained by permit-lag and PPWR compliance costs, while North American and Asia-Pacific construction activity is pulling capacity tight. Feedstock costs for silica sand and recycled glass cullet have risen modestly through 2025, averaging USD 950-1,100 per metric tonne across major producing regions, and the US tariff stack (Section 122 baseline plus Section 301 List 3 on Chinese origin) now totals roughly 35% on the most competitive source. > **Analyst Take.** The call is to build multi-source resilience before the 2030 PPWR recycled-content deadline forces supplier consolidation round two. The consensus 5.3% CAGR looks reasonable

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