SKU: 11317177842

Johns Manville AP Foil R-6.0, 1-in x 4-ft x 8-ft Polyisocyanurate Faced Board Insulation

Sale price$26.33 Regular price$29.26
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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30

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Description

Johns Manville AP Foil R-6.0, 1-in x 4-ft x 8-ft Polyisocyanurate Faced Board InsulationAP Foil Faced Polyiso Board Insulation, R 6 (1 in) Rigid polyisocyanurate foam sheathing delivering R 6 per inch for high energy efficiency in walls, ceilings, basements, and more. Foil faced on both sides to act as air, vapor, and water resistive barriers when properly installed. Lightweight panels cut easily for fast, professional results. Key Features: High R Value per Inch: Polyiso core delivers R 6. 0 in a 1 in board for efficient thermal

AP Foil-Faced Polyiso Board Insulation, R-6 (1-in)

Rigid polyisocyanurate foam sheathing delivering R-6 per inch for high energy efficiency in walls, ceilings, basements, and more. Foil-faced on both sides to act as air, vapor, and water-resistive barriers when properly installed. Lightweight panels cut easily for fast, professional results.


Key Features:

  • High R-Value per Inch: Polyiso core delivers R-6.0 in a 1-in board for efficient thermal performance
  • Dual Foil Facings: Reflective and non-reflective faces help control heat and condensation; functions as air/vapor/water-resistive barrier when installed correctly
  • Easy to Handle and Cut: Lightweight rigid board trims with a utility knife or saw for quick installation
  • Versatile Applications: Suitable for above-grade exterior walls, interior walls, basements, crawl spaces, attics, and cathedral ceilings; residential and Type I–IV commercial use
  • Low Environmental Impact: Produced with EPA-compliant blowing agent; GREENGUARD Gold and ENERGY STAR certified

Specifications Table:

Specification Details
Series Name AP Foil
Actual Length (Feet) 8
Actual Thickness (Inches) 1
Actual Width (Feet) 4
Common Length (Feet) 8
Common Thickness (Inches) 1
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 6
R-Value per Inch 6
Mold Resistant No
Package Quantity 1
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

Frequently Asked Questions (FAQ):

Q: Can I use this board as continuous exterior insulation?
A: Yes. When properly installed, AP Foil-Faced Polyiso functions as continuous insulation and as air, vapor, and water‑resistive barriers.


Q: Which side should face outward?
A: Typically install the reflective foil face toward the warm air/exterior and the white non‑reflective face toward the interior; follow siding exceptions noted by JM.


Q: How do I cut and install the panels?
A: Score with a utility knife or use a saw; fasten per local code and manufacturer instructions for walls, ceilings, and other approved locations.


Q: Is this product fire resistant?
A: As a thermoset material, AP Foil maintains integrity in ASTM E84 testing versus some rigid foams, but it is not classified as fire resistant; follow code requirements.


Q: What certifications does it carry?
A: ENERGY STAR and GREENGUARD Gold; formaldehyde-free.


Sleek, High‑Performance Insulation with Reflective Flair

This foil-faced board introduces a crisp, modern layer that elevates envelopes with both polish and performance. The shimmering surface is a design-forward detail that quietly powers energy savings behind the scenes. Use it to create a seamless, continuous thermal wrap that keeps interiors calm and controlled. It’s a sophisticated essential for building comfort with luxury in mind.


Upgrade your envelope with Johns Manville AP Foil and lock in efficient, code-ready performance—add to cart today.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 11317177842

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MrPickles
Belleville, US
★★★★★ 3
Effective but drying
Worked well on sensitive skin and to remove makeup but it felt like it dried out my eyelashes and skin.
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Reviewed in the United States on April 11, 2025
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Judster
Omaha, US
★★★★★ 5
They are so handy!!! No mess!!
So glad I discovered these!
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Reviewed in the United States on August 28, 2023
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Aleah Pacheco
Chelsea, US
★★★★★ 5
MUST BUY
This was a nice addition to my Prequel collection! I just loved this product and so did my skin. This is a very light weight product that hydrates and plumps the skin. I apply it after my VitC serum and it works great under my makeup. I will be repurchasing. Such a good product at a good price!
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Reviewed in the United States on April 14, 2026
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Rosemarie
San Leandro, US
★★★★★ 5
Makes my skin feel firmer
I bought this and the Prequel SPF, my first time using this product line. Definitely impressed and in my opinion, a great price for what seems like a quality product. The serum has a lightweight texture,, absorbs quickly, and my skin looks and feels well hydrated right away. More so than when I use a regular hyaluronic acid. There is no pilling or heavy feel so easy to use with other products. I can't say whether it improves skin texture over time or what the benefits are with continued use. I've been using it consistently with the SPF for the last two weeks, so it only been a short while. But when I put it on, my skin noticeably looks more springy and feels better throughout the day. I have mature, dry skin so I do use a moisturizer over this before sun protection. I imagine that if you have oily or normal skin you might be able to use this in place of moisturizer during the day.
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Reviewed in the United States on October 27, 2025
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L.M.
Bozeman, US
★★★★★ 5
Plump, Soft Skin with a Smooth Finish
I’ve really been enjoying the Prequel Skin Multi‑Quench Plumping Hydration Serum. It gives my skin a soft, hydrated feel without any heaviness, and it absorbs quickly so it never interferes with the rest of my routine. One of the best parts is how smoothly my makeup applies afterward—everything blends better and looks more even. Overall, it’s a lightweight, effective serum that adds the perfect boost of hydration.
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Reviewed in the United States on December 23, 2025

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