Model # 320821

Internet #202532854

Store SKU #614637

R-Tech 1 in. x 4 ft. x 8 ft. R-3.85 Insulating Sheathing
0732813100072

R-Tech

1 in. x 4 ft. x 8 ft. R-3.85 Insulating Sheathing

  • Easy to cut, split and install
  • Energy Star qualified
  • 1 in. x 4 ft. x 8 ft. R-3.85 Insulating Sheathing
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Frequently Bought Together

Product Overview

  • Easy to cut, split and install
  • Energy Star qualified
  • 1 in. x 4 ft. x 8 ft. R-3.85 Insulating Sheathing
R-Tech 1 in. x 4 ft. x 8 ft. Insulation Sheathing cuts easily to size. Facilitating its installation as wall sheathing, basement and foundation insulation or siding underlayment. This product meets federal guidelines for energy efficiency.
  • Designed for use as wall sheathing, basement and foundation insulation or siding underlayment
  • Energy Star qualified to meet or exceed federal guidelines for energy efficiency for year-round energy and money savings
  • Cuts easily to size to make installation a snap
  • Poly-facer on both sides for flexibility and durability
  • Moisture-resistant design to help maintain a water-tight seal
  • Note: Product may vary by store
  • How much do you need? Let our calculator help:
    Insulation calculator button

Product Overview

  • Easy to cut, split and install
  • Energy Star qualified
  • 1 in. x 4 ft. x 8 ft. R-3.85 Insulating Sheathing
Model #: 320821
Sku #: 614637
Internet #: 202532854

R-Tech 1 in. x 4 ft. x 8 ft. Insulation Sheathing cuts easily to size. Facilitating its installation as wall sheathing, basement and foundation insulation or siding underlayment. This product meets federal guidelines for energy efficiency.

  • Designed for use as wall sheathing, basement and foundation insulation or siding underlayment
  • Energy Star qualified to meet or exceed federal guidelines for energy efficiency for year-round energy and money savings
  • Cuts easily to size to make installation a snap
  • Poly-facer on both sides for flexibility and durability
  • Moisture-resistant design to help maintain a water-tight seal
  • 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 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
R3.85
Insulation Type
Foam Board Insulation
Interior/Exterior
Interior/Exterior
Product Weight (lb.)
2.7lb
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 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
R3.85
Insulation Type
Foam Board Insulation
Interior/Exterior
Interior/Exterior
Product Weight (lb.)
2.7lb
Sheathing Type
EPS

Warranty / Certifications

Warranty Information
N/A

Questions & Answers

can I use this on a garage door panel?

can I use this on a garage door panel?
Asked by: gr
Yes, I have used it on garage doors, I use an sharp knife (drywall type) and an t-square, good luck on your project.
Answered by: nokosi
Date published: 2018-07-31

We need to insulate aluminum utility room walls. Will this product work with adhesive and reall...

We need to insulate aluminum utility room walls. Will this product work with adhesive and really reduce the heat in there?
Asked by: FlaCharlie
To clarify Bill's answer - you would only need to use spray adhesive on a flat surface in a very humid environment, where trapped moisture could promote mold growth when the outside temp is low enough to condense water vapor between the outer shell and insulating foam boards.
Answered by: BadBat
Date published: 2018-09-17

I have a metal ribbed roof that the top panel blew off during the last hurricane. There was styrafoam in between. Will this work to replace it?

Asked by: Tom
Yes it should - any closed-cell foam board should work (closed-cell = no water absorption)
Answered by: IdahoMountains
Date published: 2018-02-27

Can you just apply these right to the wall. I would like to put them on my garage ceiling becaus...

Can you just apply these right to the wall. I would like to put them on my garage ceiling because the heat just comes right into the bedroom over the garage. Would that work?
Asked by: Tracy
Yes, you can put them right on the wall. I did.
Answered by: bob
Date published: 2018-09-11
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Customer Reviews

1 in. x 4 ft. x 8 ft. R-3.85 Insulating Sheathing is rated 4.6 out of 5 by 55.
Rated 5 out of 5 by from Great product. I used it to create a stucco trim around my house using other products to make it ... Great product. I used it to create a stucco trim around my house using other products to make it look like concrete. It was my first DIY project using foam boards.
Date published: 2018-06-26
Rated 4 out of 5 by from I insulated a shed with this product every piece had to be cut to fit. I used a fine tooth blade ... I insulated a shed with this product every piece had to be cut to fit. I used a fine tooth blade on my table saw and I am very happy with how well it went.
Date published: 2018-08-14
Rated 5 out of 5 by from Used this product in skylights. The sun was beating down through our skylights and making it unbe... Used this product in skylights. The sun was beating down through our skylights and making it unbearable to enjoy a patio room. Cut the foam insulation to fit inside frame of skylights and immediately cooled the room 10 degrees. This is an inexpensive way to insulate windows and keep heat out.
Date published: 2018-09-18
Rated 5 out of 5 by from Used this product to insulate my garage door. Cut very easy and flexible to bend and put in plac... Used this product to insulate my garage door. Cut very easy and flexible to bend and put in place. Supplier needs to package sheets better, Had to sort through many damaged sheets to find non crushed edges. Once you find good ones, great product at a good price.
Date published: 2018-07-03
Rated 5 out of 5 by from I used this $50 purchase and two hrs work to... I used this $50 purchase and two hrs work to insulate my metal garage door. Easy to do.
Date published: 2018-07-24
Rated 4 out of 5 by from Easy to work with. Cuts well with cordless skill saw,... Easy to work with. Cuts well with cordless skill saw, will use product again.
Date published: 2018-09-04
Rated 5 out of 5 by from Used it to line the pet house for my outdoor cat. Easy to work with. Used it to line the pet house for my outdoor cat. Easy to work with.
Date published: 2018-08-28
Rated 4 out of 5 by from Remove plastic covering before cementing to anything.... Remove plastic covering before cementing to anything.
Date published: 2018-08-27
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