Improve energy efficiency and jobsite performance with this 1/2" foil-faced insulation board. Designed for both residential and light commercial applications, this rigid foam panel delivers dependable thermal resistance (R-3.5) while the reflective foil facer helps reduce radiant heat transfer. Lightweight, easy to cut, and simple to install, it’s a practical solution for walls, ceilings, and specialty applications where space and performance matter. Ideal for builders looking for consistent results and homeowners tackling energy upgrades.