Xci Foil Class A is an energy efficient rigid insulation panel composed of a closed cell Class A polyisocyanurate foam core manufactured on-line to 15 mil reinforced foil facers on both sides. This panel comes in 4' x 8' panels in thickness of 1" to 4". This panel has been tested to meet air and water barrier requirements to provide all-in-one functionality when seams and penetrations are treated with approved materials.
