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


JM Continuous Insulation Video


JM FoamSheathing 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


JM Continuous Insulation Video


JM FoamSheathing Video

Available Documents

A rigid roof insulation board with high thermal efficiency, Johns Manville R-Panel® is compatible with multiple types of membrane systems.

Johns Manville R-Panel® rigid roof insulation board offers R-Values of up to R-23.6, providing high thermal efficiency. R-Panel is manufactured with a closed-cell polyisocyanurate foam core bonded to fiberglass-reinforced facers and designed for use over metal, nailable and non-nailable roof decks with a variety of membrane systems. R-Panel meets the International Building Code requirements for a foamed plastic roof insulation.

JM_ 100748 190x122

Advantages
Thermally Efficient: Effective resistance to heat transfer, with R-values up to R-23.6.
Universal Facer: Compatible with BUR, modified bitumen and single-ply membrane systems.
Clean Air: Meets Clean Air Act Amendments of 1990.
Miami-Dade County Product Control Approved:
Complies with the Florida Building Code including the High Velocity Hurricane Zone of the Florida Building Code.
Lightweight: Easy to handle and may be cut with a utility knife or saw.

  ASTM Standards   ASTM C1289-01   Type II, Class I, Grade 2
  Flame Spread   ASTM E84   ≤ 75
  Smoke Development   ASTM E84   ≤ 450
  Water Vapor Transmission   ASTM E96   < 1 perms (57.5 ng/Pa-s-m2)
  Compressive Strength   ASTM D1621   ≥ 20 psi (138 kPa)†
  Dimensional Stability   ASTM D2126   2% max, 7 days (length & width)
  Water Absorption   ASTM C209   < 1% volume
  Service Temperature     -100 to 250°F
  R-Value Per Inch     5.7 LTTR


JM Continuous Insulation Video


JM FoamSheathing Video

Available Documents