Use and Care Guide

ManualsBrandsJohns Manville ManualsFoam Board InsulationAP Foil Polyisocyanurate Foam Board Insulation (Common: 1.5-in x 4-ft x 8-ft; Actual: 1.5-in x 4-ft x 8-ft)

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PRODUCT DATA SHEET

™

FOIL-FACED

PERFORMANCE ADVANTAGES

Thermal Insulation: inch for inch, polyiso

has one of the highest energy efﬁ ciencies.

R-values for AP Foil-Faced Foam Sheathing

are shown in Table 1, and physical properties

are shown in Table 2 (see reverse). R means

resistance to heat ﬂ ow. The higher the

R-value, the greater the insulating power.

Water-Resistive Barrier: when properly

installed as part of a Johns Manville Wall

System, AP Foil-Faced Foam Sheathing meets

the ICC-ES AC71 acceptance criteria for foam

plastic sheathing used as a water-resistive

barrier. Please see the installation guide for

qualifying assemblies and detailed instructions.

Vapor Barrier: at a minimum thickness

of one inch, AP Foil-Faced Foam Sheathing

has a vapor permeance of 0.05 perms and

qualiﬁ es as a Class I vapor retarder.

Air Barrier: when properly installed

as part of a Johns Manville Wall System,

AP Foil-Faced Foam Sheathing meets the

Air Barrier Association of America boardstock

criteria for materials and assemblies. Please

see installation guide for qualifying assemblies

and detailed instructions.

Noncorrosive: does not accelerate

corrosion of pipes, wiring or metal studs.

Lightweight: easy to handle, can be cut with

a utility knife or saw.

ENERGY, QUALITY & ENVIRONMENT

DESCRIPTION

Johns Manville AP

™

Foil-Faced Foam Sheathing board consists of a uniform closed-cell

polyisocyanurate foam core bonded on each side to a foil facer. One side has a reﬂ ective foil

facer and the other side has a white non-reﬂ ective foil facer to suit your building needs.

Polyiso provides one of the highest R-values per inch of any rigid insulation (R-6.0 at

1 inch). Furthermore, when properly installed, AP Foil-Faced Foam Sheathing functions

as a water-resistive barrier, vapor barrier and air barrier, eliminating the need to install

additional components.

AP Foil-Faced Foam Sheathing is produced with an EPA-compliant hydrocarbon-based blowing

agent that has zero Ozone Depletion Potential (ODP) and virtually no Global Warming Potential

(GWP); it also meets both CFC- and HCFC-free speciﬁ cation requirements. 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.

AP Foil-Faced Foam Sheathing provides exceptional heat, moisture and air control to protect your

building’s exterior wall assembly.

INSTALLATION

AP Foil-Faced 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. Vertical joints should be staggered.

Butt joints should be centered over framing. To create a water-resistive barrier or an air barrier,

treat seams and penetrations as instructed in the installation guide and in accordance with

manufacturer’s guidelines. Once installed, AP Foil-Faced Foam Sheathing may be left exposed

for up to 60 days. Consult your local building department for code requirements.

COMPLIANCES

• ASTM C1289 Type 1, Class 1

• CAN/ULC S704, Type 1, Class 1

• ICC-ES Evaluation Report ESR-3398

• Canadian Construction Materials Centre 13104-L

• Air Barrier Association of America Evaluated Air Barrier Material,

Assembly & Water Resistive Barrier

• International Building Code

• International Residential Code

• International Energy Conservation Code

• ENERGY STAR

• ASHRAE 90.1

• California State Insulation Quality Standards

PERFORMANCE STANDARDS

• ASTM C1289, Standard Speciﬁ cation 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 259, Standard Test Method for Potential Heat of Building Materials

• NFPA 285, Standard Fire Test Method for Evaluation of Fire Propagation Characteristics of

Exterior Non-Load-Bearing Wall Assemblies Containing Combustible Components

• AC 71, Acceptance Criteria for Foam Plastic Sheathing Panels Used as Water-Resistive Barriers

• ASTM E331, Standard Test Method for Water Penetration of Exterior Windows, Skylights,

Doors, and Curtain Walls by Uniform Static Air Pressure Difference

• AATCC Test Method 127, Water Resistance: Hydro Static Pressure Test

• ASTM E1233, Standard Test Method for Structural Performance of Exterior Windows, Doors,

Skylights, and Curtain Walls by Cyclic Air Pressure Differential

• ASTM E2178, Standard Test Method for Air Permeance of Building Materials

• ASTM E2357, Standard Test Method for Determining Air Leakage of Air Barrier Assemblies

AVAILABILITY

AP Foil-Faced Foam Sheathing is available in the sizes shown in Table 1 (see reverse).

For additional information or special size inquiries, please consult a sales representative

at 800-654-3103.

Polyisocyanurate Foam Sheathing

Continuous Insulation

Summary of content (2 pages)

PAGE 1
a a Polyisocyanurate Foam Sheathing Continuous Insulation AP™ FOIL-FACED a a PRODUCT DATA SHEET DESCRIPTION Johns Manville AP™ Foil-Faced Foam Sheathing board consists of a uniform closed-cell polyisocyanurate foam core bonded on each side to a foil facer. One side has a reflective foil facer and the other side has a white non-reflective foil facer to suit your building needs. Polyiso provides one of the highest R-values per inch of any rigid insulation (R-6.0 at 1 inch).
PAGE 2
a a Polyisocyanurate Foam Sheathing Continuous Insulation a a PRODUCT DATA SHEET AP ™ FOIL-FACED STORAGE WARNING Store AP Foil-Faced Foam Sheathing elevated above the floor or ground and standing water. If stored outdoors, keep dry by covering completely with a waterproof tarpaulin. AP Foil-Faced Foam Sheathing is combustible and shall only be used as specified by the local building code with respect to flame spread classification and to the use of a suitable thermal barrier when required.