Foam Board / Sheathing

Johns Manville Polyiso foam sheathing insulation boards provide a continuous 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.

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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.

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 board sheathing has a one-inch layer of continuous insulation for maximium wall and worksite efficieny.

APFoil_LG 190x122

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

Data Sheet
AP Foil-Faced Foam Sheathing Data Sheet

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

Installation instructions
JM Continuous Insulation Wall System Installation Guide
JM AP Foil Faced Sheathing Below-Grade Interior Walls Installation Instructions
JM AP Foil Faced Sheathing Below-Grade Exterior Walls Installation Instructions
JM AP Foil Faced Sheathing Crawl Spaces Installation Instructions
AP Foil Faced Insulation Sheathing Board Attics and Cathedral/Vaulted Ceiling Installation Instructions
AP Foil Residential Installation Instructions - Above Grade Exterior Walls,Technical Guide

Continuous Insulation
Continuous Insulation Website

evaluation reports
ESR-3398

Literature
Product Selector Guide
JM All-Purpose Wall System Sell Sheet
PIMA Performance Bulletin - Polyiso vs. XPS
JM All-Purpose Wall System Components Sheet

Specifications
JM Continuous Insulation Wall System Specification, Section 072100 - Foil Faced Rigid Insulation

Case Study
JM Castle Pines Case Study
Vision House Case Study


JM Foam Sheathing Video


JM Overview Video


JM Continuous Insulation Video

Available Documents

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

Johns Manville CI Max® Polyiso Foam Sheathing Board is available in R-Values up to R-26 and provides a continuous layer of insulation to reduce thermal bridging and improve energy efficiency. CI Max sheathing 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. 

CI_MAX_APFoil_DSCI0560_RT_CMYK 190x122

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

Data Sheet
CI Max Foam Sheathing Data Sheet

SDS
CI Max Foam Sheathing SDS
CI Max Foam Sheathing SDS (ES)

Installation instructions
CI Max Installation Instructions
 

Literature
Product Selector Guide
PIMA Performance Bulletin - Polyiso vs. XPS
JM All-Purpose Wall System Components Sheet

evaluation reports
ESR-3398

Specifications
JM CI Max Guide Specifications in CSI Format
JM Continuous Insulation Wall System Specification, Section 072100 - Foil Faced Rigid Insulation


JM Foam Sheathing Video


JM Continuous Insulation Video


JM Overview Video

Available Documents