Model # 310891

Internet #202532856

Store SKU #614653

R-Tech 2 in. x 4 ft. x 8 ft. R-7.7 Rigid Foam Insulation
0732813100089

R-Tech

2 in. x 4 ft. x 8 ft. R-7.7 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:
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Info & Guides

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Specifications

Dimensions

Details

Warranty / Certifications

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Customer Questions & Answers

Can I paint the white side and will the paint peel off?

Asked by: Cindy
You probably can, as it has a plastic film.
Answered by: Cornelius
Date published: 2017-02-22

will GREAT STUFF spray foam stick to the reflective side?

will GREAT STUFF spray foam stick to the reflective side?
Asked by: max
Neither side is reflective. Both are white, plastic skin covered.
Answered by: Larry
Date published: 2017-03-14

what color is this foam insulation? is it white?

Asked by: so
It's white with metal foil on one side.
Answered by: Cornelius
Date published: 2017-02-22

will this give me a 2 hr. fire rating?

I am insulating around a door that has a 2 hr. fire rating and need to use a product that is similarly rated. Will this product provide a 2 hr. fire rating?
Asked by: lisajean
No Lesajean, this product is very flammable and is unsuitable for fire rated walls. Home Depot has a Corning insulation product that is much better suited. Check with your building engineer or the local Fire Marshal for exactly what would be need for compliance with NFPA code.
Answered by: JoeBuyer
Date published: 2017-03-14
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Customer Reviews

2 in. x 4 ft. x 8 ft. R-7.7 Rigid Foam Insulation is rated 4.3 out of 5 by 10.
Rated 5 out of 5 by from We are Commercial Mechanical Insulators. This product is readily available and meets our specifi... We are Commercial Mechanical Insulators. This product is readily available and meets our specification requirements and is about 2/3 the cost we would normally pay going through our distributors. All the required product data is available on the Home Depot website for use in our Insulation Submittal Packages.
Date published: 2016-11-08
Rated 5 out of 5 by from I used this stuff to insulate the cinder block walls in my crawls space. I used 31/2 inch special... I used this stuff to insulate the cinder block walls in my crawls space. I used 31/2 inch special plastic fasteners I bought on Ebay. The insulation is light and easy to cut. Use a long razor to score then break it. Sort of like dry wall. Once I had technique, it was very quick to cut to size. The shiny side radiant barrier looks great and adds alot of light to a dingy space. I will finish by using foam board caulk to seal the top and edges then install white 20 mil vapor barrier to finish the encapsulation. Since the skin on the back side is impermeable, the moisture and condensation problems should drain down the back of the foam and into the drain field I installed. Closing the vents and drying out under the house has made an incredible addition to the comfort of my house. I suggest this product for crawlspace encapsulation.
Date published: 2017-02-25
Rated 2 out of 5 by from I ordered this as a pick-up item. I was going to use it as backing for making circular saw cuts o... I ordered this as a pick-up item. I was going to use it as backing for making circular saw cuts on sawhorses, so the condition was not critical, however, the piece staff pulled for the order had obviously been the top sheet and was damaged by the strapping material and crushed in 2 places. I was in a hurry and did not wait to get another. The product is fine. The manner in which it was handled was less than satisfactory.
Date published: 2017-02-07
Rated 4 out of 5 by from Great for basement walls Easy installation and good product for the price. I would recommend this product...
Date published: 2016-12-27
Rated 5 out of 5 by from Arrived in great condition and was easy to handle and install Arrived in great condition and was easy to handle and install
Date published: 2017-03-14
Rated 2 out of 5 by from Good for low budget but poor quality: Low R-value/thickness ratio Unless they updated the product info since I've written this, they did NOT include the R-value information in the specs. For those of you looking, it is R-7.7; SKU #573781 is just under DOUBLE the R-value for only $11 more (@R-13.2).
Date published: 2013-09-06
Rated 5 out of 5 by from Good Inside House Window Insulation For the Phoenix area this product is a must to insulate home windows (inside) to reduce summer heat. Lowers cooling costs. Easy to store over winter months.
Date published: 2013-03-06
Rated 5 out of 5 by from Should also locate product near their Packing supplies. I use this to ship everything from heavy amplifiers to fragile glass through the mail. Everything has arrived a-ok and it is very easy to work with.
Date published: 2015-09-29
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