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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Installation Options

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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Customers Also Compared These

Price
$10.98 /each
$16.98 /each
$19.25 /each
$22.48 /each
Name 1 in. x 4 ft. x 8 ft. R-3.85 Insulating Sheathing 1-1/2 in. x 4 ft. x 8 ft. R-5.78 Rigid Foam Insulation Rmax Thermasheath-3 1 in. x 4 ft. x 8 ft. R-6 Polyisocyanurate Rigid Foam Insulation Board FOAMULAR 150 1 in. x 4 ft. x 8 ft. R-5 Scored Square Edge Insulating Sheathing
Brand R-Tech R-Tech Thermasheath Owens Corning
Ratings (34) (32) (13) (29)
Sheathing Type EPS EPS ISO XPS
Product Width (in.) 48 48 48 48
Product Length (ft.) 8 ft 8 ft 8 ft 8
Insulation R-Value 3.85 5.78 6 5
Faced or Unfaced Faced Faced Faced Unfaced
Insulation Application Type 2x4 Walls,2x6 Walls,Attics,Basements,Crawlspaces,Exterior Sheathing,Exterior Wall Foundation,Garage,Under Slab 2x4 Walls,2x6 Walls,Attics,Basements,Crawlspaces,Exterior Sheathing,Exterior Wall Foundation,Garage,Under Slab 2x4 Walls,2x6 Walls,Ceilings,Exterior Sheathing,Garage 2x4 Walls,2x6 Walls,Exterior Sheathing
Product Thickness (in.) 1 in 1.5 in 1 in 1
View Product View Product View Product View Product

Specifications

Dimensions

Product Depth (in.)
1
Product Height (in.)
96
Product Length (ft.)
8 ft
Product Thickness (in.)
1 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
3.85
Insulation Type
Sheathing
Interior/Exterior
Interior/Exterior
Product Weight (lb.)
2.7lb
Sheathing Type
EPS
Structural
Yes

Warranty / Certifications

Warranty Information
N/A

Specifications

Dimensions

Product Depth (in.)
1
Product Height (in.)
96
Product Length (ft.)
8 ft
Product Thickness (in.)
1 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
3.85
Insulation Type
Sheathing
Interior/Exterior
Interior/Exterior
Product Weight (lb.)
2.7lb
Sheathing Type
EPS
Structural
Yes

Warranty / Certifications

Warranty Information
N/A

Questions & Answers

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 this be used underneath plywood on a basement floor? We are setting up a kennel for our puppy...

Can this be used underneath plywood on a basement floor? We are setting up a kennel for our puppy in our unfinished basement that we will use sometimes until she gets older and can be trusted in house when we are gone. We do not want her to be on concrete floor for several hours at a time so was thinking of putting insulation board down, top it with plywood and cover the plywood with a linoleum remnant (for waterproofing). Is this what I would want to use?
Asked by: Grandma2Four
This material is not structural. It could and will collapse in some spots. Build a frame around it with 2x2s to give it structure use 2” foam for your pup make her comfortable- Then sheet over that with reflective sheeting then linoleum. Don’t use without support.
Answered by: TLux
Date published: 2018-04-08

I have an Old Garage that is just concrete block wall glue this to the walls or frame then glue?

Asked by: jimmy
I drilled into solid concrete, inserting expansion shafts, then using the bolts which came with the mounting kit. It worked perfectly and both doors are doing just fine. Going into concrete block would be easier. I don't think gluing would work.
Answered by: Nancy
Date published: 2018-03-05

Can these help with soundproofing?

Can these help with soundproofing?
Asked by: bandguy
Good Morning, I have no idea. I order items for student organizations here at Temple University, I will try to get in touch with the organization and ask them I will get back to you. Miss Chris
Answered by: uttageez
Date published: 2018-02-16
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Customer Reviews

1 in. x 4 ft. x 8 ft. R-3.85 Insulating Sheathing is rated 4.5 out of 5 by 33.
Rated 5 out of 5 by from I use this to cover the gap between my window frame and AC unit. It does nothing for security, b... I use this to cover the gap between my window frame and AC unit. It does nothing for security, but it definitely keeps the cold air from leaking.
Date published: 2017-12-14
Rated 5 out of 5 by from Very easy to cut and install Very easy to cut and install
Date published: 2017-12-12
Rated 5 out of 5 by from This product is great to work with for making props for theater. Been working with it for years. ... This product is great to work with for making props for theater. Been working with it for years. It cuts easy with a fine tooth saw blade. Razor knife or hot blade. Glues easy . Lite weight. . It also uses great for what it's intended for we use it for many applications installation for everything from attic, crawl space, to making custom insulated cooling rooms. If you remove the foil or clear backing the use of solvent paints could eat into the material.
Date published: 2017-06-11
Rated 2 out of 5 by from very cheap material I was looking for the reflective... very cheap material I was looking for the reflective backing material and opted to buy this insulation at an affordable price was building a grow room so it didn't need to b special just to block light from entering I would buy it again just go with the 3''
Date published: 2017-11-07
Rated 5 out of 5 by from Used the insulation board for bottom skirting on my Fifth... Used the insulation board for bottom skirting on my Fifth Wheel RV to block out winter wind and coldness. Great insulation, very easy to cut and form and good price for a little extra warmth.do
Date published: 2018-01-09
Rated 5 out of 5 by from Was very pleased how well it insulated and not as... Was very pleased how well it insulated and not as messy to work with being coated on both sides. My plan is to purchase more!
Date published: 2018-01-17
Rated 5 out of 5 by from I've purchased this product in the past, to use for insulating windows during the summer in Arizo... I've purchased this product in the past, to use for insulating windows during the summer in Arizona and it worked well, but this purchase was for insulating a very thin door on my rental home. I moved into a 55+ mobile home community a year ago and the back door of the home is wafer thin. All last summer I could feel the heat coming through as if there were no door at all. I don't use the back door but maybe once in a blue moon, so I cut a sheet of R-Tech to size (use a very sharp blade to avoid foam fuzzies), finished the edges with duct tape and squeezed it into place (I used a butter knife like a shoehorn). Summer hasn't fully hit yet, but this door faces west and we're into the low 90's now and I feel absolutely zero heat coming through! I know this addition will help me save on my electric bill as the thermostat is only about 10 feet down the hall from this door and my SRP bills were huge last summer. I already had 2 layers of blackout curtains on this door, so the outside set of drapes cover it nicely now. Oh and I cut out a little niche for the doorknob & deadbolt. I've covered this with shelf paper in the past to conceal the text on the insulation and it worked like a charm.
Date published: 2018-04-10
Rated 5 out of 5 by from I use this to cut and put in my garage windows in the summer. I use this to cut and put in my garage windows in the summer.
Date published: 2018-04-11
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