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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Compare Similar

Price
$10.58 /each
$12.58 /each
$12.70 /each
$16.54 /each
Name 1/2 in. x 4 ft. x 8 ft. R-3.3 Foam Insulation 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 3/4 in. x 4 ft. x 8 ft. R-4 Tongue and Groove Rigid Foam Board Insulation Sheathing
Brand Super TUFF-R R-Tech Owens Corning Owens Corning
Ratings (15) (44) (28) (10)
Sheathing Type ISO EPS XPS XPS
Product Width (in.) 48 48 48 48
Product Length (ft.) 8 ft 8 ft 8 ft 8 ft
Insulation R-Value 3.3 3.85 3 4
Faced or Unfaced Faced Faced Faced Faced
Insulation Application Type 2x4 Walls,2x6 Walls,Attics,Basements,Crawlspaces,Exterior Sheathing,Exterior Wall Foundation,Floors 2x4 Walls,2x6 Walls,Attics,Basements,Crawlspaces,Exterior Sheathing,Exterior Wall Foundation,Garage,Under Slab 2x4 Walls,2x6 Walls,Exterior Sheathing 2x4 Walls,2x6 Walls,Exterior Sheathing
Product Thickness (in.) .5 in 1 in .5 in .75 in
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

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
Yes, the product is suitable for that application.
Answered by: CommunityAnswer
Date published: 2018-05-22

Can i place this product under a 14ft round above ground pool as padding? Rather, is it ok for that purpose?

About 1100 gallons of water in a 14 ft pool
Asked by: Cody
This stuff is pretty fragile. It's no more than styrofoam (like you find in a cheap "single use" styrofoam cooler) with aluminum foil on one side. The weight of that much water would just smash it flat. You'd be left with what's essentially a sheet of aluminum foil under your pool. It works fine in applications that don't rely on any support from it.
Answered by: JimB
Date published: 2018-04-27

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
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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 44.
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 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 5 out of 5 by from I put this product in all my window in my home during the summer and my bill has dropped by $30 a... I put this product in all my window in my home during the summer and my bill has dropped by $30 a month.
Date published: 2018-05-02
Rated 4 out of 5 by from Great to work with, although I wish it came with... Great to work with, although I wish it came with some guidance on which side goes against wall.
Date published: 2018-05-31
Rated 4 out of 5 by from Easy to handle, cut clean and fitting into the opening was a breeze! Easy to handle, cut clean and fitting into the opening was a breeze!
Date published: 2018-06-05
Rated 5 out of 5 by from Worked great for my AC install.... Worked great for my AC install.
Date published: 2018-07-17
Rated 4 out of 5 by from Like the coating on both sides.... Like the coating on both sides.
Date published: 2018-07-10
Rated 5 out of 5 by from it was just what we wanted... it was just what we wanted
Date published: 2018-05-29
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