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Model # 310873

Internet #202530470

Store SKU #483214

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

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

  • Numerous household, hobby and construction uses
  • Easy to cut-to-size and to install
  • Poly-facer provides excellent durability & flexibility
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Frequently Bought Together

Installation Options

Product Overview

Insulation Calculator
  • Numerous household, hobby and construction uses
  • Easy to cut-to-size and to install
  • Poly-facer provides excellent durability & flexibility
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.

Product Overview

  • Numerous household, hobby and construction uses
  • Easy to cut-to-size and to install
  • Poly-facer provides excellent durability & flexibility
Model #: 310873
Sku #: 483214
Internet #: 202530470

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.

Info & Guides

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Info & Guides

Specifications

Dimensions

Product Depth (in.)
48
Product Height (in.)
96
Product Length (ft.)
8 ft
Product Thickness (in.)
.75 in
Product Width (in.)
48

Details

Faced or Unfaced
Faced
Insulation Application Type
2x4 Walls,2x6 Walls,Attics,Basements,Crawlspaces,Exterior Sheathing,Exterior Wall Foundation,Garage,Under Slab
Insulation R-Value
2.89
Insulation Type
Sheathing
Interior/Exterior
Interior/Exterior
Product Weight (lb.)
2lb
Sheathing Type
EPS
Structural
No

Warranty / Certifications

Warranty Information
N/A

Specifications

Dimensions

Product Depth (in.)
48
Product Height (in.)
96
Product Length (ft.)
8 ft
Product Thickness (in.)
.75 in
Product Width (in.)
48

Details

Faced or Unfaced
Faced
Insulation Application Type
2x4 Walls,2x6 Walls,Attics,Basements,Crawlspaces,Exterior Sheathing,Exterior Wall Foundation,Garage,Under Slab
Insulation R-Value
2.89
Insulation Type
Sheathing
Interior/Exterior
Interior/Exterior
Product Weight (lb.)
2lb
Sheathing Type
EPS
Structural
No

Warranty / Certifications

Warranty Information
N/A

Questions & Answers

What side should the reflective side face, towards outside or inside?

Asked by: jm
Easy way to remember is, shiny side (foil) outside toward sunshine. Inside face outside, it's much easier to work with that way.
Answered by: Dave
Date published: 2016-12-07

Is the writing on the foil side?

Asked by: moneyman
Yes it is.
Answered by: Dave
Date published: 2016-12-07

can i glue this product

want to add some insulation on inside of garage door can i glue these panelsto it
Asked by: bob
We used liquid nails to sucure it to painted block basement wall. It was held in place to dry and still fell off after dry. The liquid nails adhesive pulled right off the foil side.
Answered by: KF
Date published: 2016-12-07

fire rating question; can i leave it exposed in basement per typical residentail code?

Asked by: Enzo1820
This product is not fire rated nor can it be used exposed to any kind of Open Flame Source it would not pass code for a basement insulation without drywall over top of it
Answered by: DSC
Date published: 2018-03-01
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Customer Reviews

3/4 in. x 4 ft. x 8 ft. R-2.89 Foam Insulating Sheathing is rated 4.5 out of 5 by 17.
Rated 5 out of 5 by from 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.
Date published: 2013-07-25
Rated 5 out of 5 by from easy installed using for soundproofing in vocal booth easy installed using for soundproofing in vocal booth
Date published: 2017-02-02
Rated 4 out of 5 by from Used between furring strips I didn't use this over sheathing but in my 1950s furring strip on cinder block home. With the furring strips, there is not much room for insulation but when I re-modeled the bathroom, this 3/4" thick insulation fit great in between the cinderblock, furring strips and drywall. It doesn't have much R value but anything helps in my cold house. Ive noticed a slight different in insulation. I used a utility knife to cut up. The foam is messy despite how sharp your blade is.
Date published: 2016-05-24
Rated 3 out of 5 by from 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
Date published: 2012-10-17
Rated 3 out of 5 by from 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 !!!
Date published: 2015-08-02
Rated 5 out of 5 by from 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.
Date published: 2013-11-15
Rated 5 out of 5 by from easy to use great product and price easy to use great product and price used to build hot tank for customer
Date published: 2013-01-22
Rated 5 out of 5 by from 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.
Date published: 2013-06-13
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