Dupont Thermax Sheathing 1-1/4" X 4' X 8' 35 Pcs/Bundle

4' x 8', 1-1/4" Insulation, Glass Fiber Reinforced Polyisocyanurate Foam Core, Rigid Board, Non-Structural, Sheathing Interior Masonry Wall Insulation

DuPont™ Thermax™ Sheathing is a multipurpose, nonstructural, rigid board insulation that is quick and easy to install in a wide range of exposed and concealed cavity wall applications. It consists of a glass-fiber-infused polyisocyanurate foam core laminated between 1.0-mil smooth, reflective aluminum facers on both sides. The glass fiber reinforcement contributes to improved fire performance and dimensional stability. DuPont™ Thermax™ Brand insulation delivers wall performance you can count on. It's ready to meet your toughest building challenges – both outside and inside the wall – with a robust ISO insulation product line and an R-value that's proven consistent over time and a range of temperatures.