Johns Manville AP™ Foil-Faced Foam Sheathing


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). 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.

Performance Advantages:
  • Thermal insulation
  • Water-resistive barrier
  • Vapour barrier
  • Air barrier
  • Noncorrosive
  • Lightweight


More BUILT GREEN® Approved Products by Johns Manville:

Formaldehyde-Free Insulation

Vent Chutes

RBI Bats, Basement Rolls, Sound Control 



Manufacturer: Johns Manville
Contact: Jerry Wik
Phone: 403.227.2288



BUILT GREEN® Checklist

This product earns points by providing these functions:

1.1.2  Replace exterior wood sheathing with insulating sheathing and structurally required metal bracing.