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Building Insulation--Rigid Foam Board

Johns Manville Insulations

AP™ Foil Faced: Polyisocyanurate Foam Sheathing--3 in. x 48 in. x 96 in.

ebuild Ref. No. WN5300
Retail Price Information
List Price Notice

Where prices are shown, they are based on the best information available to ebuild and generally refer to manufacturer's suggested retail prices. They should be used for reference only. In some instances, the list price refers to the lowest-cost version of an item that may be available in a variety of colors, finishes, sizes -- or upgraded features. Check with local distributors for actual prices.

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Features and Benefits

  • Noncorrosive--does not accelerate corrosion of pipes, wiring or metal studs.
  • Lightweight--easy to handle, can be cut with a utility knife or saw.
  • Thermal Efficiency--polyisocyanurate foam provides the highest degree of insulation efficiency available, resisting heat transfer with R-values up to R-22.8 (RSI-4.01). It reduces thermal bridging at the framing members where fiber glass batts don’t insulate, improving the overall thermal efficiency of walls.

Product Specifications

Manufacturer Model No. WN5300
Product Name AP™ Foil Faced: Polyisocyanurate Foam Sheathing
Width 48 in.
Length 96 in.
Thickness 3 in.
Facing Foil
Format Sheet
R-value 19.5
Material Polyisocyanurate foam
Application
  • Cathedral ceilings
  • Behind all siding types, including brick veneer
  • Behind exterior stucco/lath systems
  • Underlayment leveling board for re-siding
  • Interior insulation behind gypsum board
  • Masonry walls
Edge Detail Square
Coverage per Unit 448 sq ft/unit
Quantity per Unit 14 pcs/unit
Meets Standards
  • ASTM C 1289, Type I, Class 1
  • ASTM C 209 Water Absorption, <1% volume
  • ASTM D 1621 Compressive Strength, 20 psi (138 kPa)
  • ASTM D 2126 Dimensional Stability, 2% max, 7 days (length and width)
  • California State Insulation Quality Standards
  • Service Temperature: -100°F to 250°F (-73°C to 122°C)
  • ASTM E 84 Flame Spread, 75
  • ASTM E 96 Moisture Vapor Transmission, < 1 perm (57.5 ng/Pa·s·m2)