The R-20 Fiberglass Insulation is designed to add enduring value to every home by offering high performance insulation. Manufactured by the leader in insulation products – Owens Corning, this insulation is soft and supple, and available in pre-cut sizes and easily installed between the joists and the studs in any building.,The R-20 Fiberglass Insulation is designed to add enduring value to every home by offering high