0732813100096

R-Tech

Model # 320817

Internet # 202532855

Store SKU # 614645

1-1/2 in. x 4 ft. x 8 ft. R-5.78 Rigid Foam Insulation

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

Frequently Bought Together

Product Overview

Insulfoam rigid foam is a high-performance built-to-spec sheathing insulation that provides superior R-value and moisture resistance. Made by one of North America's leading insulation and construction materials companies, it is offered in multiple thicknesses and dimensions, in both square-edged and tongue-and-groove joints. It is very easy lightweight and easy-to-use and provides an optimum balance between performance and cost.

  • 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
  • How much do you need? Let our calculator help:
    Insulation calculator button

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents.  Download a free copy from the Adobe Web site.

Specifications

Dimensions

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

Details

Faced or Unfaced 
Faced 
Insulation Application Type 
Garage,Exterior Wall Foundation,Exterior Sheathing,Crawlspaces,Basements,Attics,2x6 Walls,2x4 Walls,Under Slab 
Insulation R-Value 
5.78 
Insulation Type 
Sheathing 
Interior/Exterior 
Interior/Exterior 
Product Weight (lb.) 
4 lb 
Sheathing Type 
EPS 
Structural 
No 

Warranty / Certifications

ENERGY STAR Certified 
Yes 
Warranty Information 
N/A 

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Customer Questions & Answers

27 Questions24 Answers

Customer Questions & Answers

1-1/2 in. x 4 ft. x 8 ft. R-5.78 Rigid Foam Insulation
1-1/2 in. x 4 ft. x 8 ft. R-5.78 Rigid Foam Insulation

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2 answers

GREAT STUFF

This question is from 1-1/2 in. x 4 ft. x 8 ft. R-5.78 Rigid Foam Insulation
Asked by
Florence, Ky
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April 26, 2016
Can a polyurethane such as Great Stuff be used with R - Tech?
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Answers (2)

Asked by
seattle wa
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July 18, 2016
Answer: 
yes, but they recommend (window/door) so it stays more fliexible when wall systems move it wont crack
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May 3, 2016
Answer: 
Do not know "great stuff".
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1 answer

Can it be glued to metal, What should I use to attach ? I'm isulating a metal storage container.

This question is from 1-1/2 in. x 4 ft. x 8 ft. R-5.78 Rigid Foam Insulation
Asked by
Arizona
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June 15, 2016
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Answer (1)

June 16, 2016
Answer: 
Hello Dean,
R-TECH Insulation boards can be attached using
mechanical fasteners and compatible adhesives.
The following is a pdf file with complete instructions.
http://www.homedepot.com/catalog/pdfImages/0d/0d925f98-7429-4e10-9e56-0787537f539f.pdf
Left click on the photo of the product you are interested in at Home Depot.com. Then detailed installation instructions and product specifications can be Read More
Hello Dean,
R-TECH Insulation boards can be attached using
mechanical fasteners and compatible adhesives.
The following is a pdf file with complete instructions.
http://www.homedepot.com/catalog/pdfImages/0d/0d925f98-7429-4e10-9e56-0787537f539f.pdf
Left click on the photo of the product you are interested in at Home Depot.com. Then detailed installation instructions and product specifications can be found by clicking on the orange arrow beside the word “specification” which is below the product’s photo of on Home Depot.com. You will find an installations instructions and user guide in a box to the right. Read this over carefully to see if this is right for you.
Thank you for your inquiry.
Charlotte of the Home Depot Community. Read Less
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1 answer

Can i use this directly on the basement concrete walls before i put up 2 by 4's. and how do i fasten it?

This question is from 1-1/2 in. x 4 ft. x 8 ft. R-5.78 Rigid Foam Insulation
Asked by
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June 11, 2016
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Answer (1)

June 14, 2016
Answer: 
yes you can
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1 answer

Do I need to adjust anything on the garage door opener?

This question is from 1-1/2 in. x 4 ft. x 8 ft. R-5.78 Rigid Foam Insulation
Asked by
Arizona
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May 1, 2016
After adding 4 sheets of 1.5 in thick foam insulation (about 16 lbs) on my garage door should there be some adjusting of spring tension or something else?
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Answer (1)

May 3, 2016
Answer: 
Some doors may need to have the springs adjusted - others don't
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Customer Reviews

Rated 4.1 out of 5 by 10 reviewers.
Rated 5.0 out of 5.0 by Great garage door insulation You can tell the sound difference with this insulation, the doors now sound solid when opening and closing. The 1.5 inch was the exact fit in thickness; I wish I would have done this sooner. I was surprised as how good it came out and how easy it was not to mention the ease of cutting the insulation with a regular sharp knife. (6) 4x8 sheets will insulate (1) 16x8 and (1) 7x8 doors. October 20, 2015
Rated 4.0 out of 5.0 by Careful reading other's inputs Hey Skypilot, One side of this board is aluminum which will not be cut with a hot wire. You would have to strip off the aluminum backing. Using a circle saw is okay, but I put the blade on backwards to minimize the shredding as the "styrofoam" like product can be messy. Also, be sure to use a blade with as many teeth as possible so you are not ripping up the foam. Hot wire will work with the pink foam insulation February 21, 2016
Rated 5.0 out of 5.0 by Great stuff...fun to work with I insulated my 6' X 12' enclosed cargo trailer every inch from top to bottom with this stuff, and was very impressed after I mounted a 5,000 BTU AC on the back door. It's like a walk-in cold storage freezer. lol The air condition unit now runs for approximately two minutes or less at every fifteen minute interval as opposed to nearly continuous 24/7. Sound proofing characteristics of this product are what I consider to be moderate to very good as well. As each panel went up I could notice the difference as it gradually eliminated an 'echo' throughout the trailer. Could not be happier. Excellent value per sheet. Fun to work with. I used a six inch 'utility scraper' razor blade to cut it up. :) May 7, 2013
Rated 1.0 out of 5.0 by Cannot cut to fit a pre-fab garage door if you're looking at this to insulate your uninsulated garage door, keep looking. pre-fab uninsulated garage doors have recessed cavities that you would think you could slide this into for a good solid fit. you can't. if you cut to fit it won't slide into the cavity. So if you cut it shallow you are effectively floating it on the door for looks as it will leave a large amount of open space so you lose effective insulation. wish I hadn't wasted so much time trying to make it work but at least it was only $20 down the drain. December 10, 2015
Rated 2.0 out of 5.0 by Wrong description The sku number for this product and the description do not match, at least at my store. They were not selling R-max 1.5 ", rather some pressed Styrofoam product. I went with the 1.5" pink rigid board. August 9, 2015
Rated 5.0 out of 5.0 by Just what I was looking for I got this to insulate my steel pole building. It went up easy and is very easy to handle. Much easier than rolled insulation and more durable, in my opinion. Used dry wall screws to attach it to the horizontal 2x6 supports. I used fender washers to prevent the screws from pulling through the insulation. I also was able to cut it to fit into the panels on the steel overhead door. Did not need to glue them in since the cross supports hold them in place so they kind of "free float" in that space. The only minor complaint is that when you cut it into small shapes, the plastic sheeting sometimes peels off. January 13, 2015
Rated 5.0 out of 5.0 by good stuff I've used a fair bit of this with success. the 1/2 inch size is great under large fish tanks (60 - 100 gallons). gives very even support and heat retention. Also 1.5" in external doors. Just a question, Ed, I've only ever used a utility knife but you say a circular saw is dangerous, but do not explain why. Why? July 27, 2014
Rated 4.0 out of 5.0 by good insulation wanted double side reflective but this is what I could get Sheet insulation for HDPE shed really knock down the heat I had to be inovative because the are no Glues recommended to stick the sheets to HDPE. June 10, 2014
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