Internet #100576728

Model # 268417

Store SKU #296960

Store SO SKU #621947

0041343001323

1 in. x 4 ft. x 8 ft. R-6.5 Foam Insulation

  • Save money by lowering the cost of heating & cooling your home
  • Energy efficient alternative for non-insulating OSB or plywood
  • 1 in. x 4 ft. x 8 ft. R-6.5 Foam Insulation
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Frequently Bought Together

Frequently Bought Together

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Product Overview

  • Save money by lowering the cost of heating & cooling your home
  • Energy efficient alternative for non-insulating OSB or plywood
  • 1 in. x 4 ft. x 8 ft. R-6.5 Foam Insulation
Super TUFF-R polyisocyanurate insulation is helps improve the energy efficiency and comfort of homes. It will provide a solid, continuous, water resistant layer of insulation under the exterior finish. It also helps block costly energy loss that can occur between the studs of the wood framing. By covering cracks in old siding and around windows and doors, this insulation will greatly improve a home's energy efficiency.
  • Super TUFF-R R-6.5 1 in. x 4 ft. x 8 ft. foam insulation is Energy Star compliant and highly durable and moisture resistant; it installs easily over OSB or non-insulated sheathing and directly over wood studs
  • Super TUFF-R durable non-reflective faced insulation can reduce water and water vapor intrusion from the outside; it warms the wall cavity, thereby reducing the potential for dew point condensation forming in the walls – a key moisture defense
  • Meet or exceed federal guidelines for energy efficiency for year-round energy and money savings with an R-Value of 6.5
  • Super TUFF-R also acts as a component in a secondary drainage plane, allowing wind-driven rain (which can penetrate vinyl siding) to move quickly down the wall cavity and out the bottom of the wall – another valuable defense against moisture
  • Super TUFF-R can help protect resided homes against air infiltration through walls, which is a bigger problem than most people realize - on a windy day, air infiltration can cause significant heat loss in a home
  • Using Super TUFF-R in a residing application helps cover cracks in old siding and around windows and doors, covering the whole wall surface, not just the area between the studs, delivering air and water retarding properties for the walls of the home
  • Lightweight design installs easily over OSB or non-insulated sheathing and directly over wood studs - one facer is blue while the other is radiant barrier-quality reflective foil



  • Click here to learn more about Energy Efficiency
  • How much do you need? Let our calculator help:
    Insulation calculator button

Product Overview

  • Save money by lowering the cost of heating & cooling your home
  • Energy efficient alternative for non-insulating OSB or plywood
  • 1 in. x 4 ft. x 8 ft. R-6.5 Foam Insulation
Model #: 268417
Sku #: 296960
Internet #: 100576728

Super TUFF-R polyisocyanurate insulation is helps improve the energy efficiency and comfort of homes. It will provide a solid, continuous, water resistant layer of insulation under the exterior finish. It also helps block costly energy loss that can occur between the studs of the wood framing. By covering cracks in old siding and around windows and doors, this insulation will greatly improve a home's energy efficiency.

  • Super TUFF-R R-6.5 1 in. x 4 ft. x 8 ft. foam insulation is Energy Star compliant and highly durable and moisture resistant; it installs easily over OSB or non-insulated sheathing and directly over wood studs
  • Super TUFF-R durable non-reflective faced insulation can reduce water and water vapor intrusion from the outside; it warms the wall cavity, thereby reducing the potential for dew point condensation forming in the walls – a key moisture defense
  • Meet or exceed federal guidelines for energy efficiency for year-round energy and money savings with an R-Value of 6.5
  • Super TUFF-R also acts as a component in a secondary drainage plane, allowing wind-driven rain (which can penetrate vinyl siding) to move quickly down the wall cavity and out the bottom of the wall – another valuable defense against moisture
  • Super TUFF-R can help protect resided homes against air infiltration through walls, which is a bigger problem than most people realize - on a windy day, air infiltration can cause significant heat loss in a home
  • Using Super TUFF-R in a residing application helps cover cracks in old siding and around windows and doors, covering the whole wall surface, not just the area between the studs, delivering air and water retarding properties for the walls of the home
  • Lightweight design installs easily over OSB or non-insulated sheathing and directly over wood studs - one facer is blue while the other is radiant barrier-quality reflective foil



  • Click here to learn more about Energy Efficiency
  • How much do you need? Let our calculator help:
    Insulation calculator button

Info & Guides

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Brand Project Panels Owens Corning SilveRboard
Name FOAMULAR 1 in. x 2 ft. x 2 ft. R-5 Small Projects Rigid Pink Foam Board Insulation Sheathing FOAMULAR 250 2 in. x 48 in. x 8 ft. R-10 Scored Squared Edge Insulation Sheathing 24 in. x 1 in. x 48 in. R5 Radiant Acoustic Insulation Kit - STC 19 (5-Piece)
Price
$5.98
$29.87
$34.98 /package
Ratings (118) (221) (113)
Sheathing Type XPS XPS
Insulation Location Garage Exterior Sheathing,Exterior Wall Foundation,Under Slab 2x4 Walls,2x6 Walls,2x8 Walls,Attics,Basements,Ceilings,Exterior Sheathing,Garage,Metal Buildings,Re-Siding
Product Width (in.) 24 in 48 in 24 in
Product Length (ft.) 2 ft 8 ft 4 ft
Faced or Unfaced Unfaced Unfaced Faced
Product Thickness (in.) 1 in 2 in 1 in
View Product View Product View Product

Specifications

Dimensions

Coverage Area (sq. ft.)
32 ft²
Product Length (ft.)
8 ft
Product Thickness (in.)
1 in
Product Width (in.)
48 in

Details

Faced or Unfaced
Faced
Insulation Features
Fire Block Rated,Formaldehyde Free,Soundproofing Insulation,Vapor Retardant
Insulation Location
2x4 Walls,2x6 Walls,Attics,Basements,Crawlspaces,Exterior Sheathing,Exterior Wall Foundation
Insulation R-Value
R6.5
Insulation Type
Foam Board Insulation
Interior/Exterior
Interior/Exterior
Product Weight (lb.)
6.72lb
Returnable
90-Day
Sheathing Size
8 ft. x 1 in. x 48 in.
Sheathing Type
ISO

Warranty / Certifications

Warranty Information
15 year limited thermal

Specifications

Dimensions

Coverage Area (sq. ft.)
32 ft²
Product Length (ft.)
8 ft
Product Thickness (in.)
1 in
Product Width (in.)
48 in

Details

Faced or Unfaced
Faced
Insulation Features
Fire Block Rated,Formaldehyde Free,Soundproofing Insulation,Vapor Retardant
Insulation Location
2x4 Walls,2x6 Walls,Attics,Basements,Crawlspaces,Exterior Sheathing,Exterior Wall Foundation
Insulation R-Value
R6.5
Insulation Type
Foam Board Insulation
Interior/Exterior
Interior/Exterior
Product Weight (lb.)
6.72lb
Returnable
90-Day
Sheathing Size
8 ft. x 1 in. x 48 in.
Sheathing Type
ISO

Warranty / Certifications

Warranty Information
15 year limited thermal

Questions & Answers

Can this be used to insulate garage doors and left exposed?

Can this be used to insulate garage doors and left exposed?
Asked by: koby
Hi Koby, our Super TUFF-R™ insulation boards need to be covered by an approved thermal barrier, however our THERMAX™ products are able to be left exposed.
Answered by: DowGreatStuff
Date published: 2019-04-08

What is the r-value of this?

Asked by: Gerb
Dear Gerb: As the product description notes, this DOW polyiso foam board delivers R-6.5 per inch of thickness, which makes polyiso foam the most effective form of standard insulation. That said, new research found that polyiso R-value drops along with the temperature. So if you live in an area with cold winters, XPS (e.g. Foamular) foam board is just as effective and lower cost. In addition, polyiso foam board absorbs water; XPS does not, which makes XPS better for exterior applications and definitely better for below grade installations. Polyiso foam board is best for interior applications where water should not be an issue, and temps will be higher. One final note: all types of foam board are flammable and emit toxic gas when they burn. They should never be installed near a source of heat, and must be covered by an approved 'thermal barrier' in any living space, basement, garage or attic storage area. The standard is 1/2" drywall. I hope this is helpful. Mark
Answered by: BvilleBound
Date published: 2019-01-29

Can this be left exposed?

Can this be left exposed?
Asked by: Dayrel
It can, but its ugly, and mice or rodents could chew off pieces for their homes... I suggest covering it in places the can get to, or in places people will see. I have it exposed on the inside of my roof in the crawlspace area, as well as in the basement foundation box sills (cut to fit and expanding foam around edges) and its fine. In the cold climates, do that and then cover with whole sheets on the basement walls at least 4 feet down, and you will save 100 gallons a year on heating oil...
Answered by: Jh
Date published: 2019-01-29

What kind of glue can be used on these boards?

What kind of glue can be used on these boards?
Asked by: cam
Dear Cam: Home Depot sells glue that is compatible with foam board. See: Loctite PL300 Model # 1421941, Home Depot Internet #202020476, Store SKU #780400. Also be aware that all foam board is flammable and emits toxic gas when it burns. It must be covered by an approved 'thermal barrier' in any living space, garage, basement or attic storage area. The standard is 1/2" drywall. I hope this is helpful, Mark
Answered by: BvilleBound
Date published: 2019-01-07
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Customer Reviews

1 in. x 4 ft. x 8 ft. R-6.5 Foam Insulation is rated 4.6 out of 5 by 30.
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2019-06-12
Rated 4 out of 5 by from Satisfactory.... Satisfactory.
Date published: 2019-05-21
Rated 5 out of 5 by from Far superior to Thermax! This Dow poduct is far superior to the Thermax product HD now carries. The R value of Dow=6.5 for the 1 inch board, compared to R=5.9 for Thermax. That's a 10% better rating for the Tuff R board. Since the price is the same, it's a better buy. Also, the foil face on Thermax delaminates and tiny "floaters" of poly-iso are thrown into the air upon cutting. Not so with Tuff-R. It's a mystery to me why HD chose to replace this Dow product with an inferior Thermax product. Must have been a money grab?!
Date published: 2014-02-16
Rated 4 out of 5 by from Used it for insulating over the top of a radiator... Used it for insulating over the top of a radiator pocket in an old house. worked well. This was the last piece at my local Home Depot. It was in less than new condition with lots of dents and imperfections but usable. It would be nice if HD had more stock or provided a discount for the condition.
Date published: 2019-04-02
Rated 5 out of 5 by from Was nice and square. Went up well and is good... Was nice and square. Went up well and is good backer for the shiplap wood walls
Date published: 2019-03-12
Rated 4 out of 5 by from Nice option to add insulation where is needed easy to... Nice option to add insulation where is needed easy to work with
Date published: 2019-03-12
Rated 5 out of 5 by from Went up easy, more resistant to damage than others.... Went up easy, more resistant to damage than others.
Date published: 2019-03-19
Rated 4 out of 5 by from 4 Star Review Rating provided by a verified purchaser
Date published: 2019-03-13
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