Best Insulation Types for Texas Homes in 2026

Blown-in fiberglass is the go-to choice for most existing DFW homes. It's fast, affordable, and can be added directly on top of existing insulation without removal. For a standard 2,000 sq ft DFW attic, a blown-in job typically takes 3–5 hours and brings most homes from R-19 to R-49 in a single visit.

Blown-in cellulose is made from recycled paper products treated for fire resistance. It achieves a higher R-value per inch than fiberglass, meaning you need less material to reach R-49. A good choice for eco-conscious DFW homeowners or attics with tight spaces where depth is a constraint.

Spray foam is the premium option — and for good reason. It seals and insulates simultaneously, addressing both heat transfer and air leakage in one application. In DFW's new construction boom cities like Frisco, Prosper, and Celina, spray foam is increasingly the standard for high-performance homes.

Fiberglass batts are pre-cut panels designed for standard joist spacing. They work well in accessible attics with consistent framing, but leave gaps around pipes, wiring, and irregular framing — which is common in DFW homes. For most existing attics, blown-in provides better coverage.

Radiant barrier isn't insulation in the traditional sense — it's a reflective material that blocks radiant heat before it enters your attic. In DFW's extreme summer climate, it's one of the highest-ROI upgrades available. Install it alongside blown-in insulation for maximum performance.