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Insulation Price Increases January 2026

2 manufacturer price-increase letters from 2 brands taking effect in January 2026. Every row links to the original letter or posting.

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EffectiveBrandProductsIncreaseSource
Jan 9, 2026 Knauf Insulation 6% letter · ABC Supply Interiors
Jan 1, 2026 Mountain Fiber Mountain Fiber 7% letter · Performance Pro Supply