Model # 321355

Internet #202524156

Store SKU #286059

R-Tech 1-1/2 in. x 2 ft. x 4 ft. R-5.78 Rigid Foam Insulation
0732813100034

R-Tech

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

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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.

  • Numerous household, hobby and construction uses
  • 4 ft. L and easily cut to size
  • Energy Star compliant with great insulating properties
  • Poly-facer on both sides helps provide durability and flexibility
  • Moisture resistant
  • Note: Product may vary by store
  • How much do you need? Let our calculator help:
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Customer Questions & Answers

14 Questions12 Answers

Customer Questions & Answers

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

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2 answers

can this be used to insulate a attic panel?

This question is from 1-1/2 in. x 2 ft. x 4 ft. R-5.78 Rigid Foam Insulation
Asked by
Glendale heights
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March 25, 2016
A home inspector required me to insulate my attic access panel but didn't tell me what to use. can this be used for that?
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Answers (2)

Asked by
Colorado Springs
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October 11, 2016
Answer: 
Yes, I did. Just be sure if the R-value is sufficient to meet your needs.
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March 26, 2016
Answer: 
Yes, this can be used for insulation in the attic.
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2 answers

Does this have foil on one side?

This question is from 1-1/2 in. x 2 ft. x 4 ft. R-5.78 Rigid Foam Insulation
Asked by
auburn ca
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October 9, 2015
In the description it is labeled as "Poly-facer on both sides helps provide durability and flexibility" but when I went to my local Home Depot, they only have 4 x 8 FT sheets of this same product, and on the online webpage for the 4 x 8FT it also says "Poly-facer on both sides helps provide durability and flexibility"

However, in the store the 4 x 8 sheets have a foil backing, even though on the website it does not say anything about that. So do the 2 x 4 sheets also have a foil backing?
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Asked by
Colorado Springs
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October 11, 2016
Answer: 
yes
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January 16, 2016
Answer: 
These have a poly-facer on both sides.
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2 answers

I'm making a fish cooler. what do you suggest I use to glue the foam edges to the slick sides?

This question is from 1-1/2 in. x 2 ft. x 4 ft. R-5.78 Rigid Foam Insulation
Asked by
walla walla wa.
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October 15, 2014
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Answers (2)

Asked by
Colorado Springs
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October 11, 2016
Answer: 
Try a construction adhesive like liquid nails.
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Asked by
Orange,Calfornia
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Home Improvement Profile: Professional
October 18, 2014
Answer: 
Hi hippy,
There are various items and products to use, but one that comes to mind is using either Velcro or double sided tape.
I wouldn't use glue, as most can and will burn through and severely damage the insulation, as well as the possibly the cooler sides.
The double-sided tape mentioned is linked below. It works very well, as I personally use it every day at Read More
Hi hippy,
There are various items and products to use, but one that comes to mind is using either Velcro or double sided tape.
I wouldn't use glue, as most can and will burn through and severely damage the insulation, as well as the possibly the cooler sides.
The double-sided tape mentioned is linked below. It works very well, as I personally use it every day at work.
http://www.homedepot.com/p/Scotch-1-in-x-1-66-yds-Outdoor-Mounting-Tape-411-DC/100575385
Joseph Read Less
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1 answer

Can I use this for winter RV skirting and do I need to do anything to protect it from the weather in Pueblo, Co.

This question is from 1-1/2 in. x 2 ft. x 4 ft. R-5.78 Rigid Foam Insulation
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October 6, 2016
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Answer (1)

Asked by
Colorado Springs
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October 11, 2016
Answer: 
Not sure how well these foam panels alone, would stand up to the wind/elements. They can be eaily broken. If you want something with insulating properties as well as some rigidity/structure, I would glue these panels to some plywood before attaching it as skirting for the RV.
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Customer Reviews

Rated 5.0 out of 5 by 8 reviewers.
Rated 5.0 out of 5.0 by Good foil covered styrafoam Works good on the upper side of my attic crawl space. Provides some insulation and also covers the roofing nails sticking through the plywood roofing panels. No more nail cuts on my head from standing up in a small space. October 11, 2016
Rated 5.0 out of 5.0 by village makers delight I have used the foam insulation as a product for thermal control. I however found an amazing use for the product. During the year I put up seasonal villages to celebrate the season or holiday. I had been looking for a storable solution to build multi layer villages. This product does the trick. I use 2'by4' cores and number them for storage purposes. I also use the 1/2 and 3/4 inch as the base for my tracks. If you spray the edges of the foam with stone spray paint the foam reacts and forms a structure that looks just like rock formation. Attached is a photo of my Dickens village one of four I currently have displayed in my home. Thanks for the great product. Jim McDonald December 24, 2014
Rated 5.0 out of 5.0 by Great. Perfect for what it was requiired for. Garage door insulation. Enough to do a double garage door. Had to replace my garage door. Difference between an insulated and non insulated door was $400. Garage door insulation kit cost approx. $70. Easy to cut with razor knife. Excess foam material was used to fill 2 panels, so was able to save 2 full sheets for any future jobs or repairs, if necessary. Used approx. 2 cans of foam fill spray to fill small void unable to get to. Save myself over $300. February 4, 2015
Rated 5.0 out of 5.0 by For Garage Door Insulation, this is the bomb!!! Let me tell you I agonized over this purchase, considering the 4X8 sheets out there were so much less money, but they were not 1.5 inches either!!! I am so happy with the look and the result!!! This insulation has a white with printing side and a shiny side that is plain and perfect. I trimmed with a miter saw and skill saw. I recommend cutting away from the garage you're working in... Lots of crumbs!!! December 23, 2012
Rated 5.0 out of 5.0 by This product is easy to use, light and very good for garage doors. I bought this product to insulate my segmented garage door. Initially I tried regular fiber glass pads. I realized however that the garage door cannot be pushed up in case of a power outage or the garage door opener doesn't work. It was too heavy. I found this amazing product, the foam insulation 2ft x 4ft cuts. The 1.5 in thick fits perfect into the door compartments. I had to cut only the width to accomodate to the size of the door compartments but the length is perfect. After you cut to the right width, you have only to push a little bit the foam onto the compartment edge like you will install a bookcase sliding door or a window screen. That's all. Looks neat. The R value is even higher that a 3" thick fiber glass pad that will bulge out from the door compartment and will look like huge baby diaper. I am glad I found this product. September 4, 2012
Rated 5.0 out of 5.0 by Nativity Project I purchased this item because it is 1/2 the size. The foam board fitted in my mustang by pulling down the back seat. The board is light weight. To prevent the bidding when cutting, use a hot wire foam cutter. No mess March 18, 2014
Rated 5.0 out of 5.0 by Great Insulation I bought 16 of these instead of two garage door kits that cost $64 each... 16 cost me $69 and were easily cut to fit into my garage door... If I had bought two garage kits I still would have had to trim 8 of the 16 panels so why not trim all 16 and save some money... besides these panels were 1 1/2 inches thick instead of 1 1/4 inch thick in the garage door kits... November 17, 2011
Rated 5.0 out of 5.0 by Perfect! Same as the others: Garage door insulation combined with pink boards for the right thickness. Cutting it with the bandsaw, worked fine. Very flexible without breaking. November 9, 2012
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