Model # 267642

Internet #100322372

Store SKU #740553

Store SO SKU #621947

Super TUFF-R R8.3 1-3/8 in. x 4 ft. x 8 ft. Foam Insulation

Super TUFF-R

R8.3 1-3/8 in. x 4 ft. x 8 ft. Foam Insulation

  • Save money by lowering the cost of heating & cooling your home
  • Energy efficient alternative for non-insulating OSB or plywood
  • R8.3 1-3/8 in. x 4 ft. x 8 ft. Foam Insulation
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Frequently Bought Together

Product Overview

The SUPER TUFF-R R8.3 1-3/8 in. x 4 ft. x 8 ft. Rigid Foam Insulation features a durable polyisocyanurate foam core with a high R-value to provide excellent energy efficiency. The insulation is lightweight and easy to install and includes moisture-resistant facers laminated to the foam core.

  • High R-value of 8.3
  • Lightweight and easy to install
  • High-performance polyisocyanurate foam core for durability and excellent energy efficiency
  • 3-Ply poly/aluminum-foil facers laminated to foam core
  • 1 Facer is blue while the other is radiant-barrier-quality reflective foil
  • Moisture-resistant facers
  • Note: Product may vary by store
  • How much do you need? Let our calculator help:
    Insulation calculator button

Info & Guides

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Product Depth (in.)
Product Height (in.)
Product Length (ft.)
8 ft
Product Thickness (in.)
1.375 in
Product Width (in.)


Faced or Unfaced
Insulation Application Type
2x4 Walls,2x6 Walls,Attics,Basements,Exterior Sheathing,Floors
Insulation R-Value
Insulation Type
Product Weight (lb.)
Sheathing Type

Warranty / Certifications

Warranty Information
15 year limited thermal

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Customer Questions & Answers

Does the foil off side face the interior or the exterior

Asked by: Gloria
The blue facer of TUFF-R™ polyisocyanurate insulation typically faces out. However, from a technical perspective, it really doesn't matter when used on wood studs of exterior. If however, TUFF-R™ is used on interior of CMU block and furring is placed over it, creating a reflective air space, then the shiny aluminum side need to be facing the interior of the building. TUFF-R™ also needs to be covered with a 15 minute Thermal barrier like gypsum wallboard.
Answered by: DowGreatStuff
Date published: 2017-07-06

how much per sheet

Asked by: mark
Thank you for your recent inquiry with The Home Depot. Because this item is only available in select Home Depot stores, I believe the best advice would be to talk to one of our specialty department professionals at your local Home Depot store. For any other questions, please visit your nearest local Home Depot store or call us at Customer Service 800-430-3376. Thank you for shopping Home Depot.
Answered by: THDSupport
Date published: 2017-05-04

Can I cover the entire exterior of a slump stone home with this product, and if so, would it atta...

Can I cover the entire exterior of a slump stone home with this product, and if so, would it attach similar to cement block? My intent would be to either wire and stucco over the foam or some other type of siding.
Asked by: Ang
  • y_2017, m_8, d_18, h_4CST
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Customer Reviews

R8.3 1-3/8 in. x 4 ft. x 8 ft. Foam Insulation is rated 5.0 out of 5 by 2.
Rated 5 out of 5 by from Dow Super Tuff R Before we had our home sided we installed the Dow Super tuff-R sheething and then tyvec over the entire exterior of our home. It was easy to install as was the tyvec. It was installed in early spring of last year.. Living here at the NJ shore, our climate is very windy and either very hot or very cold pending the season.. We saw huge savings on our airconditioner usage this summer, and already, now have began to see heating savings. Its been installed for about 10 months now, and I highly reccomend it to anyone having siding work done..People mention mold issues, and from what we have seen, its just not the case. This stuff is amazing and really tightened up out home, and it wasnt too expensive, and has a very long life...What more could you want?
Date published: 2011-10-23
Rated 5 out of 5 by from !-3/8 Tuff-R The 1-3/8 Tuff-R insulation is perfect for filling in between studs run flat on a non bearing wall and does not bulge the drywall like 1/12 insulation does. Cutting should be done from both sides and a regular utility knife only goes halfway through and the fiber reinforcing does not lend itself to the "score and snap" method. Plan on using glue as most staples are not long enough to adequately penetrate the substrate.
Date published: 2010-08-02
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