Batt insulation is made of pre-cut panels (“batts”) of fiberglass, mineral wool or natural fibers designed to fit snugly between wall studs, floor joists and ceiling rafters. It provides thermal—and, in the case of denser mineral wool, acoustic—resistance by trapping air within the fibers. Batts are DIY-friendly, cost-effective and ideal for new construction or remodels where cavities are uniformly spaced, but they must be cut to fit without gaps or compression and paired with proper air sealing and vapor control.

Spray foam insulation is a two-component mixture (typically polyurethane-based) that’s sprayed on-site as a liquid and then expands into a foam, filling cavities and creating both an insulating layer and an air seal in one step. Spray foam is your go-to when you need both superior insulation and a airtight barrier, especially in high-performance or moisture-sensitive applications.

Blown-in insulation (also called loose-fill insulation) is a type of insulation made up of small particles of material—usually fiberglass, cellulose (recycled paper), or mineral wool—that are literally "blown in" using a special machine. It's great for filling in nooks, crannies, and irregularly shaped spaces that would be difficult to insulate with batts or rolls.

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​Foam board insulation is made of rigid panels—typically EPS, XPS, or polyisocyanurate—that deliver high R-values per inch in a thin, lightweight form. Because of its closed-cell structure, it also resists moisture and air infiltration when seams are sealed.