Technical Specifications

ManualsBrandsJohns Manville ManualsBuilding materialsCI Max® Polyiso Foam Board Insulation 1" x 4' x 8' R-6

DESCRIPTION

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 bonded on each

side to glass-mat-reinforced 1.5 mil embossed aluminum facers. 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. CI 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.

USE

CI Max foam sheathing is designed for easy installation where high thermal efﬁciency is required

within both new and retroﬁt interior construction. It is an excellent interior insulation solution

for both residential and Types I–V commercial construction including: masonry or framed walls

or ceilings; pre-engineered metal buildings; industrial, agricultural, farm, storage, and parking

structures; below-grade basement walls or ceilings; crawlspace walls or ceilings. Follow local

building codes for application without a thermal barrier.

THERMAL INSULATION

Polyiso has one of the highest R-Values per inch of any rigid insulation, making it the product of

choice for energy-aware consumers. R-values for CI Max foam sheathing are shown in Table 1

(see reverse), and physical properties are shown in Table 2. R means resistance to heat ﬂow.

The higher the R-value, the greater the insulating power.

AVAILABILITY

CI Max foam sheathing is available in the sizes shown in Table 1. For additional information or

special size inquiries, please consult a sales representative at 800-654-3103.

STORAGE

Store CI Max foam sheathing elevated above the ﬂoor or ground and standing water. If stored

outdoors, keep dry by covering completely with a waterproof tarpaulin.

INSTALLATION

CI Max foam sheathing is lightweight and can be easily cut with a utility knife or saw. Use

maximum board lengths to minimize the number of joints. Butt joints should be centered over

framing. Consult local building department for code requirements.

COMPLIANCES

• ASTM C1289 Type 1, Class 1

• CAN/ULC S704, Type 1, Class 1

• ICC- ESR-3398

• California State Insulation Quality Standards

• International Building Code Section 2603 and

803, (2012, 2009)

• International Residential Code Section R316

(2009, 2012)

• International Energy Conservation Code,

Table C402.2, Table R402.1.1, (2012, 2009)

• ASHRAE 90.1

• Energy Star Pending

PERFORMANCE STANDARDS

• ASTM C1289, Standard Speciﬁcation for

Faced Rigid Cellular Polyisocyanurate

Thermal Insulation Board

• CAN/ULC-S704 Standard for

Thermal Insulation, Polyurethane and

Polyisocyanurate, Boards, Faced

• ASTM E84, Test for Surface Burning

Characteristics of Building Materials

• CAN/ULC S102, Standard Method of Test for

Surface Burning Characteristics of Building

Materials and Assemblies

• NFPA 286, Standard Methods of Fire Tests

for Evaluating Contribution of Wall and

Ceiling Interior Finish to Room Fire Growth

• VOC Emissions from Building Products,

CDPH/EHLB/Standard Method V1.1

(Section 01350)

CI MAX

POLYISOCYANURATE FOAM SHEATHING

CONTINUOUS INSULATION FOR EXPOSED

INTERIOR WALLS OR CEILINGS

Visit our website at www.JM.com or call 800-654-3103

Building Insulation Division P.O. Box 5108 | Denver, CO 80217-5108

Summary of content (2 pages)

PAGE 1
CI MAX® POLYISOCYANURATE FOAM SHEATHING CONTINUOUS INSULATION FOR EXPOSED INTERIOR WALLS OR CEILINGS DESCRIPTION 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 bonded on each side to glass-mat-reinforced 1.5 mil embossed aluminum facers.
PAGE 2
CI MAX® POLYISOCYANURATE FOAM SHEATHING CONTINUOUS INSULATION FOR EXPOSED INTERIOR WALLS OR CEILINGS LIMITATIONS WARNING CI Max foam sheathing is nonstructural. The walls must be braced in accordance with the requirements of the applicable code. This product is not marketed as a rodent or insect deterrent. Check applicable building codes. CI Max foam sheathing must be protected from open fl ame because the product is combustible.