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Foam Board / Continuous Insulation

Johns Manville Polyiso foam continuous insulation boards provide a layer of insulation to reduce thermal bridging and improve energy efficiency. Polyiso consists of a uniform closed-cell polyisocyanurate foam core and provides one of the highest R-values per inch of any rigid insulation.

Discover our Polyiso educational resources here.

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Foam Board, Continuous Insulation

AP Foil-Faced Foam Continuous Insulation

With exceptional heat, moisture and air control, Johns Manville AP™ Foil-Faced Polyiso Foam Sheathing eliminates all major thermal bridges that cause heat loss when installed correctly.

Data Sheet

SDS

Product Guide

Johns Manville AP™ Foil-Faced Polyiso Foam Sheathing boards are available in R-Values up to R-28 and offer a reflective foil facer on one side and a non-reflective facer on the other. AP Foil provides exceptional heat, moisture and air control and, when installed correctly, eliminates all major thermal bridges that cause heat loss. The rigid continuous insulation board allows for maximum wall and worksite efficiency.

Advantages

Thermally Efficient: Effective resistance to heat transfer, with R-values up to R-28.
Water-Resistive Barrier: Meets the ICC-ES AC71 acceptance criteria.
Vapor Barrier: Class I vapor retarder at one inch.
Air Barrier: Meets the Air Barrier Association of America boardstock criteria, when properly installed.
Lightweight: Easy to handle and may be cut with a utility knife or saw.

ASTM Standards	ASTM C1289	Type I, Class 1
Flame Spread	ASTM E84	4": ≤ 25
Smoke Development	ASTM E84	≤ 450
Water Vapor Transmission	ASTM E96	0.05 perms (3 ng/Pa-s-m²)
Compressive Strength	ASTM D1621	≥ 16 psi (110 kPa)
Water Absorption	ASTM C209	0.1% volume
Service Temperature		-100 to 250°F
R-Value Per Inch		6.0

JM Foam Board Video

JM Overview Video

JM Continuous Insulation Video

Polyiso Continuous Insulation Wall Systems: The Perfect Wall

JM CI and Building Science

(webinar)

JM Continuous Insulation and Building Science

Polyiso CI | Do All Insulation Products Deliver Similar Performance?

Polyiso CI | How Does Polyiso Manage Water in a Rainscreen?

Polyiso CI | How Does Polyiso Improve Rainscreen Performance?

Polyiso CI | What is a Rainscreen?

Available Documents

AP Foil25 Polyiso Continuous Insulation

Johns Manville AP™ Foil25 Polyiso Continuous Insulation is a 25-psi compressive strength board that consists of a closed-cell polyisocyanurate foam core bonded on each side to a foil facer.

Data Sheet

Johns Manville AP^™ Foil25 Polyiso Continuous Insulation is a 25-psi compressive strength board that consists of a closed-cell polyisocyanurate foam core bonded on each side to a foil facer. AP Foil25 is well suited for below-grade residential applications, as well as commercial applications where higher compressive strength boards are preferred for certain exterior cladding systems. AP Foil25 is a water-resistive barrier, vapor barrier and air barrier all in one.

Advantages

Thermally efficient: Inch for inch, polyiso has one of the highest energy efficiencies
Water-resistive barrier: Meets ICC-ES AC71 acceptance criteria
Vapor barrier: Class I vapor retarder
Air barrier: Meets the Air Barrier Association of America boardstock criteria when properly installed
Noncorrosive: Does not accelerate corrosion of pipes, wiring or metal studs

ASTM Standards	ASTM C1289	Type I, Class 1
Flame Spread	ASTM E84	4": ≤ 25
Smoke Development	ASTM E84	≤ 450
Water Vapor Transmission	ASTM E96	0.05 perms (3 ng/Pa-s-m²)
Compressive Strength	ASTM D1621	≥ 25 psi
Water Absorption	ASTM C209	0.1% volume
Service Temperature		-100 to 250°F
R-Value Per Inch		6.0

Data Sheet

AP Foil25 Data Sheet

SDS

AP Foil-Faced Foam Sheathing SDS
AP Foil-Faced Foam Sheathing SDS (ES)

Installation Instructions

Continuous Insulation

Evaluation Reports

CCRR-0444

Literature

Certifications and Specifications

JM Continuous Insulation Wall System Specification, Section 072100 - Foil Faced Rigid Insulation
Polyiso Sheathing EPD
Intertek Clean Air Certification Report

Warranties

AP Foil and CI Max 20 Year Limited Warranty

JM Foam Board Video

JM Overview Video

JM Continuous Insulation Video

Polyiso Continuous Insulation Wall Systems: The Perfect Wall

JM CI and Building Science

(webinar)

Polyiso CI | Do All Insulation Products Deliver Similar Performance?

Polyiso CI | How Does Polyiso Manage Water in a Rainscreen?

Polyiso CI | How Does Polyiso Improve Rainscreen Performance?

Polyiso CI | What is a Rainscreen?

Available Documents

CI Max Foam Continuous Insulation

Designed for easy installation in exposed interiors, Johns Manville CI Max® Polysio Foam Continuous Insulation is ideal for places where high efficiency is required.

Data Sheet

SDS

Product Guide

Johns Manville CI Max^® Polyiso Foam Continuous Insulation is available in R-Values up to R-26 and provides a layer of insulation to reduce thermal bridging and improve energy efficiency. CI Max Continuous Insulation is designed for exposed interior applications and is approved for use without a thermal barrier. It is suitable for wall or ceiling applications in residential, commercial, agricultural and industrial buildings.

Advantages

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.

ASTM Standards	ASTM C1289	Type I, Class 1
Flame Spread	ASTM E84	4": ≤ 25
Smoke Development	ASTM E84	≤ 450
Water Vapor Transmission	ASTM E96	0.02 perms (1.4 ng/Pa-s-m²)
Compressive Strength	ASTM D1621	≥ 16 psi (110 kPa)
Water Absorption	ASTM C209	< 0.6% volume
Service Temperature		-100 to 250°F
R-Value Per Inch		6.0