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Model # 310873

Internet # 202530470

Store SKU # 483214

3/4 in. x 4 ft. x 8 ft. R-2.89 Foam Insulating Sheathing

This item has been discontinued.
The Home Depot no longer carries this specific product.

$12.48 /each




Model # 310873

Internet # 202530470

Store SKU # 483214

R-Tech is a cost effective way to increase your project energy efficiency. EPS is a fully recyclable material. R-Tech is also available in thicknesses ranging in 1/8 in. increments from 3/8 in. to 5 in.

  • Specifically developed for wall sheathing, siding underlayment and basement and foundation insulation
  • 8 ft. length can be 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.
  • Insulation calculator button

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Length (ft.) 
8 ft 
Product Thickness (in.) 
.75 in 
Product Width (in.) 
Faced or Unfaced 
Insulation Application Type 
2x4 Walls,2x6 Walls,Attics,Basements,Crawlspaces,Exterior Sheathing,Exterior Wall Foundation,Garage,Under Slab 
Insulation R-Value 
Insulation Type 
Product Weight (lb.) 
2 lb 
Sheathing Type 
Warranty / Certifications
ENERGY STAR Certified 
Warranty Information 


Rated 4.0 out of 5 by 7 reviewers.
Rated 5.0 out of 5.0 by The versatility of this product met my needs amazingly well. It was large, it was ridgid, it was light, it was affordable, it was paintable--it was just what I needed for making two backdrop stages for a vacation Bible school. Admittingly it was an aberrant use of foam insulation, but the kids loved it! I peeled off the foil, laid 5 piecies on the ground, drew and painted the scene, then turned them over and connected them with duck tape. Then stood them up. July 24, 2013
Rated 3.0 out of 5.0 by Good if you dont need to cut it The first sheets went in well then I had to cut some to fit, after the 1st cut there were little white balls of foam everywhere. OK so lets change to a sharper knife, no difference, This is great if its the right size but be prepared for clean up when you cut !!! August 2, 2015
Rated 5.0 out of 5.0 by Great for blocking knitted items I needed a surface to block knitted items. This board works great. Accepts pins well. Lightweight and rigid, stores vertically. November 15, 2013
Rated 3.0 out of 5.0 by R value In answer to the other reviewer's question...zoon into the product and you'll see the R-value on the panel. Depending on temperature, it's around 3.8 per inch of thickness. That makes this around 2.85R-value. not great but cheap October 17, 2012
Rated 5.0 out of 5.0 by easy to use great product and price easy to use great product and price used to build hot tank for customer January 22, 2013
Rated 5.0 out of 5.0 by Great product with great customer service This store is simply outstanding! They helped me cut this piece of foam, carried it out to my car and made sure I had all I needed. June 13, 2013
Rated 2.0 out of 5.0 by R value there is no where on the pruduct that gives it's R value. this is the most asked question. October 13, 2012
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