#1 Home Improvement Retailer

Internet # 202532856

Model # 320825

Store SKU # 614653

2 in. x 48 in. x 8 ft. R-7.7 EPS Rigid Foam Board Insulation

Apply Now
6 Months Everyday Financing** available on purchases of $299 or more. Apply Now
  • Interested in purchasing a pallet? Buy 24
  • Lightweight, easy to use
  • Multiple thicknesses
  • View More Details

Ask about this product

Get an answer now with AI

AI-generated from the text of manufacturer documentation. To verify or get additional information, please contact The Home Depot customer service.

Product Details

About This Product

Henry R-Tech is a cost-effective way to increase your project's energy efficiency. R-Tech is an engineered rigid insulation consisting of a superior closed-cell, lightweight and resilient expanded polystyrene (EPS) core with a printed, and metallic-reflective polymeric facer. R-Tech meets or exceeds the requirements of ASTM C578, Type I, Standard Specification for Rigid Cellular Polystyrene Thermal Insulation. In addition, R-Tech has excellent dimensional stability, compressive strength and water resistance properties. R-Tech is an ENERGY STAR qualified insulation and can contribute towards LEED credits. And the foam core is 100% recyclable. R-Tech is available in 4'x8' panels in thicknesses of 1/2", 1", 1-1/2", 2", and 3".

Highlights

  • Enhanced Facers: R-Tech features a factory-adhered, metallic-reflective facer on one side and a blue facer on the other, providing superior durability.
  • Enhanced Performance: R-Tech is often used where greater durability, moisture resistance, and thermal performance are needed, such as in exterior walls, roofing, or below-grade insulation.
  • Flexibility and Durability: With polymeric facers on both sides, R-Tech offers exceptional flexibility and durability, making it a robust choice for various applications.
  • Additional R-Value: The metallic facer on R-Tech can enhance insulation (R-Value) when facing a dead air space of 0.75 inches or more, providing better thermal performance.
  • Ease of Use: R-Tech can be easily cut with an insulation knife, razor knife, or any specialty foam knife or foam saw blades, ensuring convenient installation.
  • LEED Credits: R-Tech can contribute to LEED credits, supporting sustainable building practices. Always check local building codes for specific system requirements.
  • Energy Star Qualified: R-Tech is certified as an Energy Star qualified insulation, meeting high standards for energy efficiency.
  • Certified Quality: Meets UL and ASTM C578 certifications, ensuring top-tier quality.
  • Click here to learn more about Eco Options and Energy Efficiency
  • Return Policy

Product Information

Internet # 202532856

Model # 320825

Store SKU # 614653

Specifications

Dimensions

Coverage Area (sq. ft.)

32 sq ft

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

Interior/Exterior

Interior/Exterior

Number of Pieces

1

Pack Size

24

Product Weight (lb.)

5.4 lb

Sheathing Size

8 ft. x 2 in. x 48 in.

Sheathing Type

EPS

Questions & Answers

What’s the R value
ByJul 20, 2026
0 Answer | 
Answer This Question

What adhesive should I use to glue this to a porch ceiling
ByJul 19, 2026
1 Answer | 
Answer This Question

Do not glur. Use an electric STAPLE GUN - it costs about $30. Stop using chemcal methods - they can dont last long

By|Jul 23, 2026


    Can this go between my outside wall in my bedroom and my wall board? It’s so cold I can feel the cold through the wall and I thought this might help.
    ByJul 17, 2026
    0 Answer | 
    Answer This Question

    Can this be used to insulate the botton of z mobile home
    ByJul 9, 2026
    1 Answer | 
    Answer This Question

    It's what I'm going to be using so I hope so.

    By|Jul 14, 2026


      Can you use this to insulate a garage door
      ByJul 9, 2026
      0 Answer | 
      Answer This Question

      Can this be used in a crawl space?
      ByJul 9, 2026
      1 Answer | 
      Answer This Question

      While EPS can be used as part of a crawl space encapsulation, XPS is more resistant to moisture damage over time. A bit more expensive, but the labor is usually the biggest investment.

      By|Jul 10, 2026


        Can this be used on a piece of wood that is covered by vinyl on a boat engine cover?
        ByJul 8, 2026
        0 Answer | 
        Answer This Question

        Does it contain formaldehyde? Just wondering..
        ByJul 8, 2026
        0 Answer | 
        Answer This Question

        Viewing 1-8 of 1599

        Customer Reviews

        4.7 out of 5

        • 4.7 out of 2,025 reviews
        • 92% recommend this product
        Filter by:
        Showing 1-10 of 2,025 reviews
        1 inch foam board
        I’m so very happy with this board! My house is over 100 years old and this stuff is so good. The board is light weight, cuts with a utility knife, and does fall apart. I hate fiberglass. Foam board did the trick!
        by
          • Recommended
          1 found this review helpful
          Easy to work with and like the width of this .
          by
          This installation is very easy to use. The price is right. I used the installation for my basement, walls, the delivery was very quick. And make my job easy, the insulation has A foil, which helps for the radiant heat it's very easy to work with and I will not hesitate to use it again. I used aluminum foil for tapeing the the sims and and liquid nail to atouch it to the wall.
          by
          1 found this review helpful
          I have an old house with a walk-up attic in upstate New York. It was insulated with 7" inches of cellulose insulation under the floor (~ R20) but was still experience big ice dams in the winter. I covered the floor with four layers of these 2" Foam boards, giving me about an R52 insulation value. I used about 120 panels. No more ice dams and the house is much more comfortable!! The panels can be walked on so we still store a few items on top of then. Also, the panels could easily be removed if someone ever wanted to make the attic living space in the future.
          by
          • Verified Purchase
          1 found this review helpful
          Though a little messy to cut, it is easy to handle.
          by
          1.5" is perfect for garage door
          The 1.5" thick is perfect for insulating a garage door and it is very inexpensive. It makes a huge difference blocking the radiating heat that is from the inside of the metal garage door. On a sunny day that was only 73 degrees out in Orlando, FL, the sun was on my garage and measured over 130 degrees Fahrenheit. With the insulation it was in the 80s range after a few hours of direct sunlight so its a huge difference. In the summer my garage was getting blistering hot so this was very much needed. I highly recommend to everyone to insulate your garage. Also, this did take me a long time to measure, cut, and partially take some bolts out of the do so it will slide in correct. And it does not bend much so you dont have much room for tolerance in the vertical aspect (horizontally it slides behind the brackets). Its definitely a lot of work but can be accomplished with a simple tape measure, marker, and one of those long retractable utility blades.
          by
            • Recommended
            1 found this review helpful
            JR (store manager) provided a most enjoyable customer expire e by having store associate cut the product form a template we brought in. We installed it at home for a perfect fit!
            by
            • Verified Purchase
            I love this product. It serves what I needed very well. Easy to work with. Just be patient on the cuts and snap. It works just like drywall but weighs like a feather. I highly recomommend useing it to add about 4 to the R vale on an upstair slanted and flat ceiling. And duct tape it to create a barrier from air infiltrating in areas that you may have slightly missed with the fiberglass roof rater vented channels. Taping makes a huge difference if you are leaving and attic unfinished from drywalling for a couple years. Excellent product for the money. Will buy again
            by
            1 found this review helpful
            Great product easy install and light , great R value
            by
            The insulation cuts and breaks nice. The silver sided backing is nice as some of the insulation is going to be left exposed and is a nicer view than pink or blue
            by
            Showing 1-10 of 2,025 reviews