R13 insulation is designed for 2x4 wall cavities, providing basic thermal protection and soundproofing. It's ideal for mild climates or interior walls, offering a balance of performance and space efficiency. Each pack covers 40 square feet.
R38 insulation is perfect for attics and ceilings where high insulation levels are needed. It provides superior thermal protection and soundproofing, making it suitable for very cold climates or areas requiring maximum energy efficiency. Each pack covers 64 square feet.
