Model # 613010

Internet #100573703

Store SKU #416989

Thermasheath Rmax Thermasheath-3 2 in. x 4 ft. x 8 ft. R-13.1 Polyisocyanurate Rigid Foam Insulation Board
0719968770015

Thermasheath

Rmax Thermasheath-3 2 in. x 4 ft. x 8 ft. R-13.1 Polyisocyanurate Rigid Foam Insulation Board

  • Energy efficient
  • For residential and commercial buildings
  • ENERGY STAR approved
$3047 /each
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Frequently Bought Together

Installation Options

Product Overview

  • Energy efficient
  • For residential and commercial buildings
  • ENERGY STAR approved
R-Matte Plus-3/Thermasheath-3 is rigid foam plastic thermal insulation board. It's made of environmentally sound, closed cell, polyisocyanurate foam bonded to a durable white-matte (non-glare) aluminum facer and a reflective reinforced aluminum facer. This product is suitable for use in wall sheathing applications in new residential, commercial and agricultural buildings and for thermal retrofit construction to existing buildings. This Energy Star qualified R-Matte Plus-3/Thermasheath-3 provides R13.1 with dimensions of 2 in. x 4 ft. x 8 ft. This product is designed for exterior and interior, non-structural uses.
  • Rmax polyiso sheathing offers the greatest R-value per inch currently available in a rigid foam board
  • R-Matte plus-3/Thermasheath-3 is applied to the exterior or interior face of wood or metal studs to cover all studs, sills, plates and header constructions, thereby providing insulation over areas not normally covered by insulation products
  • Superior resistance to moisture and vapor in above grade applications
  • Polyiso rigid foam board offers superior fire protection properties compared to any other rigid foam board insulation
  • ENERGY STAR qualified to meet or exceed federal guidelines for energy efficiency for year-round energy and money savings
  • When taped and flashed, the Rmax polyiso board greatly reduces air infiltration and prevents thermal bridging caused by heat and cold transmission through studs
  • Lightweight and easily cut to size
  • How much do you need? Let our calculator help:
    Insulation calculator button

Product Overview

  • Energy efficient
  • For residential and commercial buildings
  • ENERGY STAR approved
Model #: 613010
Sku #: 416989
Internet #: 100573703

R-Matte Plus-3/Thermasheath-3 is rigid foam plastic thermal insulation board. It's made of environmentally sound, closed cell, polyisocyanurate foam bonded to a durable white-matte (non-glare) aluminum facer and a reflective reinforced aluminum facer. This product is suitable for use in wall sheathing applications in new residential, commercial and agricultural buildings and for thermal retrofit construction to existing buildings. This Energy Star qualified R-Matte Plus-3/Thermasheath-3 provides R13.1 with dimensions of 2 in. x 4 ft. x 8 ft. This product is designed for exterior and interior, non-structural uses.

  • Rmax polyiso sheathing offers the greatest R-value per inch currently available in a rigid foam board
  • R-Matte plus-3/Thermasheath-3 is applied to the exterior or interior face of wood or metal studs to cover all studs, sills, plates and header constructions, thereby providing insulation over areas not normally covered by insulation products
  • Superior resistance to moisture and vapor in above grade applications
  • Polyiso rigid foam board offers superior fire protection properties compared to any other rigid foam board insulation
  • ENERGY STAR qualified to meet or exceed federal guidelines for energy efficiency for year-round energy and money savings
  • When taped and flashed, the Rmax polyiso board greatly reduces air infiltration and prevents thermal bridging caused by heat and cold transmission through studs
  • Lightweight and easily cut to size
  • How much do you need? Let our calculator help:
    Insulation calculator button

Info & Guides

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Specifications

Dimensions

Product Depth (in.)
2
Product Height (in.)
96
Product Length (ft.)
8 ft
Product Thickness (in.)
2 in
Product Width (in.)
48

Details

Faced or Unfaced
Faced
Insulation Application Type
2x4 Walls,2x6 Walls,Attics,Basements,Ceilings,Crawlspaces,Exterior Sheathing,Garage,Re-Siding
Insulation R-Value
13.1
Insulation Type
Sheathing
Interior/Exterior
Exterior
Product Weight (lb.)
7lb
Sheathing Type
ISO
Structural
No

Warranty / Certifications

Warranty Information
Standard Warranty

Specifications

Dimensions

Product Depth (in.)
2
Product Height (in.)
96
Product Length (ft.)
8 ft
Product Thickness (in.)
2 in
Product Width (in.)
48

Details

Faced or Unfaced
Faced
Insulation Application Type
2x4 Walls,2x6 Walls,Attics,Basements,Ceilings,Crawlspaces,Exterior Sheathing,Garage,Re-Siding
Insulation R-Value
13.1
Insulation Type
Sheathing
Interior/Exterior
Exterior
Product Weight (lb.)
7lb
Sheathing Type
ISO
Structural
No

Warranty / Certifications

Warranty Information
Standard Warranty

Questions & Answers

I'm looking to install these insulation boards to a finished dry wall closet....the easiest way f...

I'm looking to install these insulation boards to a finished dry wall closet....the easiest way for me would be to use an adhesive bond ...like liquid nails...would this be sufficient bonding to the wall ?
Asked by: mrgolf535
It should be sufficient. These panels are very light weight. They are also 4ft wide which I believe is less than standard distance between wall studs so you can also cut these to fit between the studs and press them in for a friction fit.
Answered by: Dave
Date published: 2018-01-09

What type of adhesive caulk or glue is compatible with the product?

What type of adhesive caulk can be used to adhere to sheathing to wood studs? (of course nails would be used too, but this is just for initial stick and hold to provide time while installing to nail it fast). What type of adhesive caulk can be used to adhere sheets to another sheet to double up a layer for extra R-value? I have been told that some types of adhesive caulks will dissolve the foam and others are "safe" to use on the foam. Thank you!
Asked by: DanFrontier
I used PL300 by Loctite which is specifically made for foam board. Other petroleum-based adhesives may damage foam board, although with foil backing this might not be a problem, but beware.
Answered by: bustedpinky
Date published: 2017-03-25

Which side out?

Asked by: Dick
R-Max SHOULD answer this obvious question on the 'Spec Sheet', but they do not. The logo/print side appears to face the Exterior [=outside] on their spec sheet Drawings so, apparently, the logo/print side is to face the outside/exterior. R-Max SHOULD type this simple instruction on the actual printed/logo face side of this product.
Answered by: tim
Date published: 2018-01-22

Why is this product NOT stocked at most Home Depot stores? I bought some of this about 3yrs ago ...

Why is this product NOT stocked at most Home Depot stores? I bought some of this about 3yrs ago to build an insulation box for my attic pull-down stairs. Now, I'd like to build another one for my daughter's house. Can't find this anywhere. Why?
Asked by: Roy
I agree, this product is top quality and usually purchased in bulk. I ordered my roof package and my load was delivered right away. It would be nice for all stores to stock at least 5 panels of each size on hand, however, there is limited space at the stores and with sizes ranging from 3/4" to 2" in 2' and 4' wide panels, this would fill the rack with just the RMAX. I am very pleased with the huge difference in comfort since installing this insulation. Cheers~
Answered by: RECON
Date published: 2018-01-20
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Customer Reviews

Rmax Thermasheath-3 2 in. x 4 ft. x 8 ft. R-13.1 Polyisocyanurate Rigid Foam Insulation Board is rated 4.6 out of 5 by 17.
Rated 4 out of 5 by from I ordered 40 sheets to do basement wall insulation. Overall... I ordered 40 sheets to do basement wall insulation. Overall it is good quality material. A few of the sheets (approx 10) were damaged, but I was able to complete the job with enough leftover to insulate a 16x12x13 shed. Dampness is no longer a problem in crawl space(70 inch) any longer. More care should be used in the storage , handling , and delivery of these rather delicate sheets.
Date published: 2017-12-05
Rated 4 out of 5 by from Added this product to our built-up roof and it has... Added this product to our built-up roof and it has made a world of difference. The R-value plus the air space between the insulation and the new sheathing has drastically improved our comfort level. Easy to work with and fairly square and true. Would be 5 star, if the price point was reduced by 20%.
Date published: 2017-12-26
Rated 5 out of 5 by from I encapsulated my crawl space for a Radon Mitigation system. The 2" Rigid Foam panel installed ea... I encapsulated my crawl space for a Radon Mitigation system. The 2" Rigid Foam panel installed easily over the encapsulation material.
Date published: 2017-10-18
Rated 5 out of 5 by from 5 Star Review Rating provided by a verified purchaser
Date published: 2018-01-24
Rated 5 out of 5 by from it's foam board. not much else to say... it's foam board. not much else to say
Date published: 2018-01-30
Rated 4 out of 5 by from Easy to cut. Good R value.... Easy to cut. Good R value.
Date published: 2017-12-13
Rated 5 out of 5 by from Great product Great product
Date published: 2017-12-12
Rated 5 out of 5 by from R13 in only 2 in. I purchased this rigid insulation to insulate a cinder block basement wall. The sheets were easy to cut and I achieved R13 in only 2 in. of space as compared to extruded polystyrene, which is only R10, and for the same money. My only disappointment was that I planned to use construction adhesive to install for the short term, but this stuff had a slight bow from the store shelf and the polyiso it is too rigid for the adhesive to adhesive to flatten it out, so I ended up using furring strips and 1/4" x 3-3/4" flathead Tapcons to anchor to the block rather than adhesive, which was my long term plan anyway. Not the products fault, but thought you should know how it behaves. Also, tape the seams with the nashua foil tape and fill any large gaps with great stuff (same polyiso product).
Date published: 2015-01-05
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