Johns Manville AP Foil R-13, 2-in x 4-ft x 8-ft Faced Polyisocyanurate Foam Board Insulation
AP Foil R-13 Polyiso Foam Board Insulation, 2-in x 4-ft x 8-ft
Rigid polyisocyanurate foam board with foil facings delivers high thermal performance for continuous exterior or interior insulation. At 2 inches thick, it provides R-13 and helps control heat, moisture, and air for more energy-efficient walls and ceilings.
Key Features:
- High R-Value per Inch: Polyiso delivers R-6 per inch; 2-in board provides R-13 for efficient thermal control
- Dual Foil Facings: Reflective exterior face and white interior face optimize energy reflection and installation orientation
- Air/Vapor/WRB Function: When properly installed, serves as water-resistive, vapor, and air barrier to reduce extra layers
- Easy to Handle: Lightweight board cuts with a utility knife or saw for fast installs in walls, attics, basements, and ceilings
- Fire Performance: Thermoset material stays intact during fire exposure (ASTM E84) compared to other rigid foam boards
Specifications Table:
| Specification | Details |
|---|---|
| Series Name | AP Foil |
| Actual Length (Feet) | 8 |
| Actual Thickness (Inches) | 2 |
| Actual Width (Feet) | 4 |
| Common Length (Feet) | 8 |
| Common Thickness (Inches) | 2 |
| Common Width (Feet) | 4 |
| Coverage Area (Sq. Feet) | 32 |
| Faced/Unfaced | Faced |
| Fire Resistant | No |
| Fits 2 x 4 Walls | Yes |
| Fits 2 x 6 Walls | Yes |
| For Use in Attics | Yes |
| For Use in Basements | Yes |
| For Use in Ceilings | Yes |
| For Use in Crawlspaces | Yes |
| For Use in Doors | No |
| For Use in Duct | No |
| For Use in Electrical | No |
| For Use in Floors | No |
| For Use in Garage Doors | No |
| For Use in Masonry | No |
| For Use in Plumbing | No |
| For Use in Vents | No |
| For Use in Walls | Yes |
| For Use in Windows | No |
| For Use on Glass | No |
| For Use on Insulation | Yes |
| For Use on Metal | No |
| For Use on Plastic | No |
| For Use on Wood | Yes |
| Formaldehyde Free | Yes |
| Insulation Type | Polyisocyanurate |
| Maximum R-Value | 13 |
| Mold Resistant | No |
| Package Quantity | 1 |
| R-Value per Inch | 6 |
| Sound Barrier | No |
| Use Location | Indoor |
| Vapor Retardant | Yes |
| Water Resistant | No |
| ENERGY STAR Certified | Yes |
| GREENGUARD Gold Certified | Yes |
| Warranty | 20-year limited |
| UNSPSC | 30141500 |
| Category | Insulated Sheathing |
Frequently Asked Questions (FAQ):
Q: Can this be used as continuous exterior insulation?
A: Yes—AP Foil-Faced Polyiso is designed for continuous insulation on above-grade exterior walls and can also be used on interior walls, attics, basements, and crawl spaces.
Q: Which side should face outward during installation?
A: In most applications, install the reflective foil face toward the exterior and the white non‑reflective face toward the interior; follow siding exceptions noted by the manufacturer.
Q: What is the R-value of this 2-in board?
A: R-13 (polyiso provides approximately R-6 per inch).
Q: Does it act as a vapor or air barrier?
A: When properly installed, it functions as a water-resistive barrier, vapor barrier, and air barrier.
Q: Is it lightweight and easy to cut?
A: Yes, it’s lightweight and can be cut with a utility knife or saw.
Sleek, High-Performance Sheathing for Modern Envelopes
This foil-faced board introduces a clean, architectural surface while quietly supercharging thermal performance. The reflective face becomes a subtle design ally, channeling light and efficiency in tandem. Pair it with streamlined framing and dark cladding for a polished, high-contrast envelope. It’s a smart essential that elevates comfort and luxury through thoughtful building science.
Upgrade your envelope with AP Foil R-13 today and enjoy immediate energy savings with professional-grade, easy-to-install insulation.
Original: $52.24
-70%$52.24
$15.67Product Information
Product Information
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Description
AP Foil R-13 Polyiso Foam Board Insulation, 2-in x 4-ft x 8-ft
Rigid polyisocyanurate foam board with foil facings delivers high thermal performance for continuous exterior or interior insulation. At 2 inches thick, it provides R-13 and helps control heat, moisture, and air for more energy-efficient walls and ceilings.
Key Features:
- High R-Value per Inch: Polyiso delivers R-6 per inch; 2-in board provides R-13 for efficient thermal control
- Dual Foil Facings: Reflective exterior face and white interior face optimize energy reflection and installation orientation
- Air/Vapor/WRB Function: When properly installed, serves as water-resistive, vapor, and air barrier to reduce extra layers
- Easy to Handle: Lightweight board cuts with a utility knife or saw for fast installs in walls, attics, basements, and ceilings
- Fire Performance: Thermoset material stays intact during fire exposure (ASTM E84) compared to other rigid foam boards
Specifications Table:
| Specification | Details |
|---|---|
| Series Name | AP Foil |
| Actual Length (Feet) | 8 |
| Actual Thickness (Inches) | 2 |
| Actual Width (Feet) | 4 |
| Common Length (Feet) | 8 |
| Common Thickness (Inches) | 2 |
| Common Width (Feet) | 4 |
| Coverage Area (Sq. Feet) | 32 |
| Faced/Unfaced | Faced |
| Fire Resistant | No |
| Fits 2 x 4 Walls | Yes |
| Fits 2 x 6 Walls | Yes |
| For Use in Attics | Yes |
| For Use in Basements | Yes |
| For Use in Ceilings | Yes |
| For Use in Crawlspaces | Yes |
| For Use in Doors | No |
| For Use in Duct | No |
| For Use in Electrical | No |
| For Use in Floors | No |
| For Use in Garage Doors | No |
| For Use in Masonry | No |
| For Use in Plumbing | No |
| For Use in Vents | No |
| For Use in Walls | Yes |
| For Use in Windows | No |
| For Use on Glass | No |
| For Use on Insulation | Yes |
| For Use on Metal | No |
| For Use on Plastic | No |
| For Use on Wood | Yes |
| Formaldehyde Free | Yes |
| Insulation Type | Polyisocyanurate |
| Maximum R-Value | 13 |
| Mold Resistant | No |
| Package Quantity | 1 |
| R-Value per Inch | 6 |
| Sound Barrier | No |
| Use Location | Indoor |
| Vapor Retardant | Yes |
| Water Resistant | No |
| ENERGY STAR Certified | Yes |
| GREENGUARD Gold Certified | Yes |
| Warranty | 20-year limited |
| UNSPSC | 30141500 |
| Category | Insulated Sheathing |
Frequently Asked Questions (FAQ):
Q: Can this be used as continuous exterior insulation?
A: Yes—AP Foil-Faced Polyiso is designed for continuous insulation on above-grade exterior walls and can also be used on interior walls, attics, basements, and crawl spaces.
Q: Which side should face outward during installation?
A: In most applications, install the reflective foil face toward the exterior and the white non‑reflective face toward the interior; follow siding exceptions noted by the manufacturer.
Q: What is the R-value of this 2-in board?
A: R-13 (polyiso provides approximately R-6 per inch).
Q: Does it act as a vapor or air barrier?
A: When properly installed, it functions as a water-resistive barrier, vapor barrier, and air barrier.
Q: Is it lightweight and easy to cut?
A: Yes, it’s lightweight and can be cut with a utility knife or saw.
Sleek, High-Performance Sheathing for Modern Envelopes
This foil-faced board introduces a clean, architectural surface while quietly supercharging thermal performance. The reflective face becomes a subtle design ally, channeling light and efficiency in tandem. Pair it with streamlined framing and dark cladding for a polished, high-contrast envelope. It’s a smart essential that elevates comfort and luxury through thoughtful building science.
Upgrade your envelope with AP Foil R-13 today and enjoy immediate energy savings with professional-grade, easy-to-install insulation.
