Model # 320817

Internet #202532855

Store SKU #614645

R-Tech 1-1/2 in. x 4 ft. x 8 ft. R-5.78 Rigid Foam Insulation
0732813100096

R-Tech

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

  • Lightweight, easy to use
  • Multiple thicknesses
  • 1-1/2 in. x 4 ft. x 8 ft. R-5.78 Rigid Foam Insulation
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Frequently Bought Together

Product Overview

  • Lightweight, easy to use
  • Multiple thicknesses
  • 1-1/2 in. x 4 ft. x 8 ft. R-5.78 Rigid Foam Insulation
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.
  • 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

  • Lightweight, easy to use
  • Multiple thicknesses
  • 1-1/2 in. x 4 ft. x 8 ft. R-5.78 Rigid Foam Insulation
Model #: 320817
Sku #: 614645
Internet #: 202532855

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.

  • 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

Coverage Area (sq. ft.)
32
Product Length (ft.)
8 ft
Product Thickness (in.)
1.5 in
Product Width (in.)
48 in

Details

Faced or Unfaced
Faced
Insulation Features
Structural
Insulation Location
2x4 Walls,2x6 Walls,Attics,Basements,Crawlspaces,Exterior Sheathing,Exterior Wall Foundation,Garage,Under Slab
Insulation R-Value
R5.78
Insulation Type
Foam Board Insulation
Interior/Exterior
Interior/Exterior
Product Weight (lb.)
4lb
Sheathing Type
EPS

Warranty / Certifications

Warranty Information
N/A

Specifications

Dimensions

Coverage Area (sq. ft.)
32
Product Length (ft.)
8 ft
Product Thickness (in.)
1.5 in
Product Width (in.)
48 in

Details

Faced or Unfaced
Faced
Insulation Features
Structural
Insulation Location
2x4 Walls,2x6 Walls,Attics,Basements,Crawlspaces,Exterior Sheathing,Exterior Wall Foundation,Garage,Under Slab
Insulation R-Value
R5.78
Insulation Type
Foam Board Insulation
Interior/Exterior
Interior/Exterior
Product Weight (lb.)
4lb
Sheathing Type
EPS

Warranty / Certifications

Warranty Information
N/A

Questions & Answers

Can you use this instead of plywood on a 2x6 framed exterior wall? Or does it go on after the ply...

Can you use this instead of plywood on a 2x6 framed exterior wall? Or does it go on after the plywood?
Asked by: 1234
Yes, this is done to save money (usually on homes with siding) but this product is not structural and you will need to find another method of shear bracing your home (let-in bracing, shear panels, etc.) There are a few good resources on sheathing options, including this article http://www.greenbuildingadvisor.com/articles/dept/musings/wall-sheathing-options. There are links within the article specifically to "How to Install Rigid Foam Sheathing." Click on them. Read. Research. Location of the insulation (and any vapor retarders, or vapor barriers) is also very important in order to prevent condensation. This will depend on your climate zone. When in doubt, just pay a professional rather than risk rot, mold, and a structurally deficient home.
Answered by: Architect
Date published: 2018-05-31

what is the weight of 1 panel?

what is the weight of 1 panel?
Asked by: bob
Maybe a pound. It's super light weight. If you are going to put in it a truck make sue you can tie it down so it doesn't blow out of the bed. Or pick it up with a vehicle you can put it inside (suv or van).
Answered by: Themslydia
Date published: 2018-01-07

Looking to use this as insulation for a camper floor. Can it be glued and sandwiched between mari...

Looking to use this as insulation for a camper floor. Can it be glued and sandwiched between marine plywood and a polyply sheeting? If so, what kind of glue would work on all these materials? I was hoping to use a roll-on glue for complete and permanent adherence.
Asked by: Allan
I bet roll-on contact cement would work great. I would use two layers of 1/4" ply with Overlapping / staggered joints over this. It won't resist any point loads, like heavy footsteps near a doorway or at joints of boards. Distribute the loads as evenly as possible over this foam.
Answered by: Ben
Date published: 2018-04-26

I am looking to finish our below grade basement (Wisconsin) and looking to install this product d...

I am looking to finish our below grade basement (Wisconsin) and looking to install this product directly against poured concrete walls. Does this product retain moisture? It says its designed for basement insulation and that its moisture resistant, but I've read about other EPS products that ended up absorbing moisture (vs. XPS).
Asked by: JR
Because it is faced with a membrane, it should not absorb moisture from your walls. However, if you have significant moisture coming though your concrete walls, I would fix that issue first before applying insulation
Answered by: Kelly
Date published: 2018-03-26
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Customer Reviews

1-1/2 in. x 4 ft. x 8 ft. R-5.78 Rigid Foam Insulation is rated 4.6 out of 5 by 47.
Rated 5 out of 5 by from I did not use this for insulation. I used... I did not use this for insulation. I used this to make a quilt layout board for my wife. I taped the edges with 4" Gorilla Tape and used that tape to make a hinge after I cut the board in half. My wife is very happy with it...
Date published: 2018-07-03
Rated 5 out of 5 by from Rigid foam is easy to cut on the table saw Rigid foam may not be too exciting, but I wanted to share, that it is very easy to cut on the table saw. I am always tempted to cut with a razor blade and snap, but the cut ends up a little rough. The entire sheet can be cut on the table saw much faster than with a knife and the cuts are perfect. I used this foam to insulate the narrow space on a custom pocket door wall. I have also used it in the past for insulating steel garage doors, when cut just a little larger, the panels will fit snug into the open spaces on the back of a steel garage door, adding good sound deadening and insulating properties. I have done this on 3 garage doors all with great success. The foam is so light, it doesn’t effect the door balance. Another great use, is as a backer for cutting a full sheet of plywood. It eliminates tear out and supports the sheet so you can push the circular saw across, while safely on the garage floor. Just let the blade cut into the foam.
Date published: 2012-10-09
Rated 5 out of 5 by from 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. :)
Date published: 2013-05-07
Rated 3 out of 5 by from Good stuff.I can feel the difference.A few notes.The plastic lining... Good stuff.I can feel the difference.A few notes.The plastic lining on each side should/could be a bit thicker so that screws do not pull though. You have to use fender washers with your screws to keep this from happening. This drives the installation cost way up.
Date published: 2018-07-03
Rated 5 out of 5 by from This 1-1/2 in insulation board was perfect for insulating my... This 1-1/2 in insulation board was perfect for insulating my garage door. Aluminum foil side towards the door. The ridges in the door panel provided the necessary air gap for the aluminum radiant barrier to work.
Date published: 2018-08-21
Rated 5 out of 5 by from I used the rigid foam insulation to make a cover... I used the rigid foam insulation to make a cover for my spa. it is strong, lightweight and easy to trim.
Date published: 2018-06-26
Rated 5 out of 5 by from Great product, worked well as garage door insulation when cut up.... Great product, worked well as garage door insulation when cut up....
Date published: 2018-07-24
Rated 5 out of 5 by from Great product... easy to cut with knife. Very satisfied...... Great product... easy to cut with knife. Very satisfied...
Date published: 2018-09-11
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