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Foam Board Insulation

Internet #202532856

Model #310891

Store SKU #614653

2 in. x 4 ft. x 8 ft. R-7.7 Rigid Foam Insulation

(161)Questions & Answers (216)
  • Lightweight, easy to use
  • Multiple thicknesses
  • 2 in. x 4 ft. x 8 ft. R-7.7 Rigid Foam Insulation
  • See More Details

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Product Overview

Insulfoam rigid foam is a high-performance built-to-spec sheathing insulation that provides superior R-value and moisture resistance. It is offered in multiple thicknesses and dimensions, in both square-edged and tongue-and-groove joints. It is lightweight and easy to use and provides an optimum balance between performance and cost. Manufactured by one of North America's leading insulation and construction materials companies.
  • Specifically developed for wall sheathing, siding underlayment and basement and foundation insulation
  • 8 ft. L easily cuts to desired size
  • Energy Star qualified to meet or exceed federal guidelines for energy efficiency for year-round energy and money savings
  • Moisture resistant with great insulating properties
  • Poly-facer on both sides for durability and flexibility
  • Note: Product may vary by store



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

Info & Guides

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    • Compare Similar Foam Board Insulation

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    2 in. x 4 ft. x 8 ft. R-7.7 Rigid Foam Insulation
    BrandSTYRO IndustriesSTYRO IndustriesSTYRO IndustriesR-Tech
    NameFP Ultra Lite 1 in. x 2 ft. x 4 ft. Stucco Grey Foundation PanelFP Ultra Lite 2 in. x 2 ft. x 4 ft. Natural Tan Foundation PanelFP Ultra Lite 2 in. x 2 ft. x 4 ft. Earth Tone Brown Foundation Panel2 in. x 4 ft. x 8 ft. R-7.7 Rigid Foam Insulation
    Price
    Ratings
    (36)
    (4)
    (22)
    (161)
    Product Thickness (in.)1222 in
    Insulation LocationExterior Wall FoundationExterior Wall FoundationExterior Wall Foundation2x4 Wall,2x6 Wall,Attic,Basement,Crawlspace,Exterior Sheathing,Exterior Wall Foundation,Garage,Under Slab
    Insulation R-ValueR5R10R10R7.7
    Sheathing TypeXPSXPSXPSEPS
    Insulation FeaturesMold Resistant,Paintable,Water ResistantMold Resistant,Paintable,Water ResistantMold Resistant,Paintable,Water ResistantStructural
    Product Length (ft.)2228 ft
    Compatible Install SurfaceCement,Concrete,Existing InsulationCement,Concrete,Existing InsulationCement,Concrete,Existing InsulationCement,Concrete,Existing Drywall,Plywood,Wood
    Product Width (in.)48484848 in
    Faced or UnfacedFacedFacedFacedFaced
    Interior/ExteriorExteriorExteriorExteriorInterior/Exterior
    View ProductView ProductView ProductView Product

    Specifications

    Dimensions

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

    Details

    Compatible Install Surface
    Cement,Concrete,Existing Drywall,Plywood,Wood
    Faced or Unfaced
    Faced
    Insulation Features
    Structural
    Insulation Location
    2x4 Wall,2x6 Wall,Attic,Basement,Crawlspace,Exterior Sheathing,Exterior Wall Foundation,Garage,Under Slab
    Insulation R-Value
    R7.7
    Insulation Type
    Foam Board Insulation
    Interior/Exterior
    Interior/Exterior
    Number of Pieces
    1
    Product Weight (lb.)
    5.4
    Sheathing Size
    8 ft. x 2 in. x 48 in.
    Sheathing Type
    EPS

    Warranty / Certifications

    Warranty Information
    n/a

    Questions & Answers

    216Questions29Answers

    Can inuse this to insulate my garage remodel to bedroom?

    Asked by dirty April 14, 2021
    3
    Answers

    I bought these to insulate my garage, they work great and easy to cut with a zip knife or a serrated knife, also insulated my hoop house bottom sides. material is easy to work with and helps controlling temperature and sound.

    Will this work outside on the exterior concrete foundation?

    Asked by Pete February 15, 2021
    3
    Answers

    R-TECH can be used on either side of a concrete wall. Not sure about freezing pipes though. Suggest opening any doors to allow warm air get to pipes to avoid freezing. In short, increasing the R-Value of a wall will help keep cold from transferring through the wall.

    Can i glue this to painted metal panel

    Asked by ed February 3, 2021
    3
    Answers

    Yes. You have styrofoam on one side and a metallic covering on the other. Choose your adhesive accordingly. Remembering that the metal will expand and contract with the temperature changes.

    Can this be used to insulate a metal roof

    Asked by Butterfly January 27, 2021
    4
    Answers

    Yes it would work very well.I definitely would use it before anything else.

    Can the coating be removed? I am not using it for insulation.

    Asked by DIYer January 14, 2021
    2
    Answers

    No.

    Can the film be removed? I'm not using for insults.

    Asked by DIYer January 14, 2021
    4
    Answers

    Order it as unfaced. Have the Pro Desk call Insulfoam directly if they have any questions

    Would this be very functional used on the basement ceiling, between the joists? I am looking at d...

    Asked by Matt January 8, 2021
    3
    Answers

    Matt, not sure what you mean by "functional". Is your intent to insulate the room above from a cold basement below? This 2" rigid foam insulation has an R value of 7.7, which is "good". Not as good as 8" of R 30 fiberglass batt insulation, but that is not the way you want to go. The 2 IN. X 4 FT. X 8 FT. R-7.7 RIGID FOAM INSULATION should be easy and quick to install, but you will have to trim it to fit between the floor joists. Not a big deal. And yes, the insulation will be functional. If you are painting it, it does not matter which side faces out.

    Can i use it on my boat?

    Asked by Meharris November 26, 2020
    2
    Answers

    Depends on how. R-Tech can be used for many DIY projects. Without more details can't really determine if it can be used on a boat. Might look at manufactures website as there are details on R-Techs uses. As well as contact information.

    Can I use this insulation for a dog house

    Asked by whittier November 13, 2020
    3
    Answers

    Yes, absolutely

    1) Does this need to be covered? 2) Shiny side facing in or out? This will be for a detached gara...

    Asked by Sharma November 10, 2020
    2
    Answers

    We installed with shiny side facing in to reflect heat inward. Works very well. But the silver side also seemed to block full wifi, so we needed to remove it between two of our rooms.

    2 in. x 4 ft. x 8 ft. R-7.7 Rigid Foam Insulation - page 2

    Customer Reviews

    • 4.8
      out of 161 reviews
    • 93% recommend this product
    Filter by:
    Showing 1-10 of 161 reviews
    May 12, 2020
    I made to window valence with it and I was able to cover it with fabric securely.
    I made to window valence with it and I was able to cover it with fabric securely.
    by DIYLady
    Oct 22, 2019
    Easy to work with and lightweight. Using it in my cargo vehicle I'm building out as an RV. An ele...
    Easy to work with and lightweight. Using it in my cargo vehicle I'm building out as an RV. An electric 'hot knife' makes it cut like butter and cuts can be very precise for a tight fit (though it smells like burning plastic when it's being melted by the hot knife).
    by SEIBHC
    1 person found this helpful
    Aug 5, 2019
    Great for DIY craft projects. I wanted huge 42 inch round and 52 * 32 inch oval foam boards for a...
    Great for DIY craft projects. I wanted huge 42 inch round and 52 * 32 inch oval foam boards for a craft project. I found this insulation board in Home Depot store at Monterey hwy SanJose but was not sure how to cut it in the required shapes, also it was not possible to carry the huge foam board in the car if it was not cut into manageable sizes in store. Konstantine, a store associate there, was very kind to help me cut the foam board in perfect oval and round shapes. Many Thanks to him and other store associates who were very helpful.
    by Craftsy
    5 people found this helpful
    Dec 14, 2018
    It is a little messy to work with, but I felt it was worth it in the long run. I measured and cut...
    It is a little messy to work with, but I felt it was worth it in the long run. I measured and cut it with a small porcelain knife. I felt a saw would make a bigger mess, and I was just using it for a SHE SHED, lol. I only needed a broom for clean up, and it seems to be keeping the temp reasonable even though it is winter.
    by Bunny
    7 people found this helpful
    Nov 8, 2016
    We are Commercial Mechanical Insulators. This product is readily available and meets our specifi...
    We are Commercial Mechanical Insulators. This product is readily available and meets our specification requirements and is about 2/3 the cost we would normally pay going through our distributors. All the required product data is available on the Home Depot website for use in our Insulation Submittal Packages.
    by Dave
    9 people found this helpful
    Mar 6, 2021
    Easy to cut to fit what I needed it to....
    Easy to cut to fit what I needed it to.
    by Wheeler
    Feb 18, 2021
    Rating provided by a verified purchaser...
    Rating provided by a verified purchaser
    by HomeDepotCustomer
    Jan 15, 2021
    worked great for what i needed...
    worked great for what i needed
    by JEREMY
    Jan 9, 2021
    Insulated solar battery box. Easy to work with....
    Insulated solar battery box. Easy to work with.
    by HomeDepotCustomer
    Dec 26, 2020
    don't know yet, it's part of a floor onstruct which will see a lot of traffic, Won't know for a ...
    don't know yet, it's part of a floor onstruct which will see a lot of traffic, Won't know for a year or so
    by na
    Showing 1-10 of 161 reviews

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