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
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Frequently Bought Together

Product Overview

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

Product Overview

  • Numerous household, hobby and construction uses
  • Easy to cut-to-size and to install
  • Poly-facer provides excellent durability & flexibility
Model #: 310891
Sku #: 614653
Internet #: 202532856

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

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Specifications

Dimensions

Product Depth (in.)
48
Product Height (in.)
96
Product Length (ft.)
8 ft
Product Thickness (in.)
2 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
7.7
Insulation Type
Sheathing
Interior/Exterior
Interior/Exterior
Product Weight (lb.)
5.4lb
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.)
2 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
7.7
Insulation Type
Sheathing
Interior/Exterior
Interior/Exterior
Product Weight (lb.)
5.4lb
Sheathing Type
EPS
Structural
No

Warranty / Certifications

Warranty Information
n/a

Questions & Answers

Does this insulation have the foil back ?

Does this insulation have the foil back ?
Asked by: Tam
Yes it does
Answered by: Anurag
Date published: 2018-01-16

Can i glue two these sheets together so i have it 4 inches thick??

Asked by: George
Yes you can but even better, Home Depot can make special orders up to 6" thick if a minimum quantity is met. They can also make custom compressive strengths up to 60psi which comes with a higher R-value.
Answered by: JasonW
Date published: 2018-01-06

Can this be used as skirting to insulate around a mobile home

Asked by: Joe
I wouldn't do that. Skirting is hard plastic that can take abuse like running a weed eater against it. This foam board isn't tough at all. You can rip it to pieces with your hands. Plus the cost would probably be more than regular skirting.
Answered by: Mike
Date published: 2017-11-10

can this be used under a basement slab?

can this be used under a basement slab?
Asked by: crh
NO, NO
Answered by: Utrom
Date published: 2017-12-25
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Customer Reviews

2 in. x 4 ft. x 8 ft. R-7.7 Rigid Foam Insulation is rated 4.7 out of 5 by 27.
Rated 5 out of 5 by from Used it to make headstones for Halloween... they look Great!... Used it to make headstones for Halloween... they look Great!
Date published: 2017-09-07
Rated 4 out of 5 by from 4 Star Review Rating provided by a verified purchaser
Date published: 2018-01-03
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 5 out of 5 by from Perfect, Could not ask for a better product easy to handle,easy to install, & priced 30% lower ... Perfect, Could not ask for a better product easy to handle,easy to install, & priced 30% lower than your major Competition, which defrays my Cost to drive 38 mi. one way to your store.. Happy in all aspects, helps me in every way ,especially the Wallet! Thank you,Very much!!!*****,
Date published: 2017-11-28
Rated 5 out of 5 by from I purchased this for my mother in laws double wide... I purchased this for my mother in laws double wide trailer. Her skirting had no insulation and the energy bills were high and her home very cold. Had it installed and so far working great she doesn't need as many blankets and we are waiting for the new energy bill hopefully lower.
Date published: 2018-01-16
Rated 5 out of 5 by from This is some nice foam, used to insulate the roof... This is some nice foam, used to insulate the roof in my garage. The only thing I don't like about this foam is what a mess it makes wen you cut it otherwise for the price it's great.
Date published: 2017-10-18
Rated 5 out of 5 by from I love using these for sets in kids ministry and... I love using these for sets in kids ministry and ordering online was great because I don't have a truck. Pick was fantastic too!
Date published: 2017-07-27
Rated 5 out of 5 by from I did not use the insulation for it's typical use,... I did not use the insulation for it's typical use, it was for an outdoor lawn ornament, it worked out extremely well
Date published: 2018-01-02
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