Cellulose vs. Fiberglass vs. Mineral Wool: How to Identify Your Insulation and What It Means for Your Bills
Most homeowners have no idea what type of insulation is in their walls or attic, and that gap in knowledge can lead to costly mistakes when upgrading or air sealing. Learn how to identify cellulose, fiberglass, and mineral wool insulation by sight, touch, and simple tests, so you can make smarter decisions about your home’s thermal envelope.
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