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

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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Price
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Name 1 in. x 4 ft. x 8 ft. R-3.85 Insulating Sheathing FOAMULAR 1/2 in. x 4 ft. x 8 ft. R-3 Square Edge Rigid Foam Board Insulation Sheathing FOAMULAR 150 1 in. x 4 ft. x 8 ft. R-5 Scored Square Edge Rigid Foam Board Insulation Sheathing 2 in. x 4 ft. x 8 ft. R-7.7 Rigid Foam Insulation
Brand R-Tech Owens Corning Owens Corning R-Tech
Ratings (86) (56) (109) (75)
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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: 2018-12-04

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

Does the facing act as a vapor barrier?

Asked by: hd
No, this product is not a vapor barrier.
Answered by: CommunityAnswer
Date published: 2019-01-12
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Customer Reviews

1 in. x 4 ft. x 8 ft. R-3.85 Insulating Sheathing is rated 4.7 out of 5 by 86.
Rated 5 out of 5 by from Surpaset expectations... Surpaset expectations
Date published: 2019-01-09
Rated 5 out of 5 by from Easy to install, haven’t finished , but feeling the warmth... Easy to install, haven’t finished , but feeling the warmth already
Date published: 2019-01-08
Rated 5 out of 5 by from I used this to create little enclosures for my outdoor... I used this to create little enclosures for my outdoor barn kitties. I cut it into pieces to fit into plastic totes and the outdoor kitties immediately loved their warm little mini-barns. :)
Date published: 2019-01-01
Rated 4 out of 5 by from Put it on the garage doors .It works great ... Put it on the garage doors .It works great
Date published: 2018-12-28
Rated 4 out of 5 by from Worked well for what I needed!... Worked well for what I needed!
Date published: 2018-12-28
Rated 5 out of 5 by from it is good to me for keep room warm it is good to me for keep room warm
Date published: 2018-12-26
Rated 4 out of 5 by from great product ... great product
Date published: 2018-12-26
Rated 5 out of 5 by from Worked fine went up with no problems ... Worked fine went up with no problems
Date published: 2018-12-21
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