Polyiso Continuous Insulation | Johns Manville

Johns Manville has added CI Max White insulation to its complete line of building insulation products. A high-efficiency polyiso foam sheathing designed for exposed interior applications in commercial and residential buildings, CI Max White is approved for use without a thermal barrier and provides an attractive and durable interior finish. The company’s entire line of foam sheathing products has also received International Code Council Evaluation Service (ICC-ESR-3398) approval for residential and types I-V commercial construction.