Johns Manville CI Max® is a high efficiency rigid foam sheathing designed for exposed interior applications. It is composed of a uniform closed-cell polyisocyanurate foam core with a glass-mat reinforced 1.5 mil embossed aluminum facer that is meant to be left exposed. Available in a white or silver finish, CI Max foam sheathing is approved for use without a thermal barrier and provides an attractive and durable interior finish. It is suitable for wall or ceiling applications in residential, commercial, agricultural and industrial buildings.

Polyiso provides a continuous layer of insulation to reduce thermal bridging and improve energy efficiency. Cl Max foam sheathing passed NFPA 286 Corner Burn Test for walls only or ceiling only without joint treatment, meeting both the International Code Council's Building Code Section 2603 and Residential Code Section R316.

CI Max foam sheathing is produced with an EPA compliant hydrocarbon-based blowing agent which has zero Ozone Depletion Potential (ODP) and virtually no Global Warming Potential (GWP). It meets CFC- and HCFC-free specification requirements. It also meets acceptance criteria for individual VOCs of concern and formaldehyde for school classrooms, private offices, and single family residences. Polyiso is one of North America's most widely-used insulation products and has been cited by the EPA for its responsible impact on the environment.

Features

• Thermally Efficient - Effective resistance to heat transfer, with R-values up to R-26.
• Vapor Barrier - Maintains a minimum thickness of one inch and qualifies as a Class I vapor retarder.
• Lightweight - Easy to handle and may be cut with a utility knife or saw.