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Model # 754404

Internet #100572981

Store SKU #754404

R-Matte Rmax R-Matte Plus-3 1/2 in. x 4 ft. x 8 ft. R-3.2 Polyisocyanurate Rigid Foam Insulation Board
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0719968510017

R-Matte

Rmax R-Matte Plus-3 1/2 in. x 4 ft. x 8 ft. R-3.2 Polyisocyanurate Rigid Foam Insulation Board

  • Energy efficient
  • For residential and commercial buildings
  • ENERGY STAR approved
$ 13 35
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Frequently Bought Together

Frequently Bought Together

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 Rmatte Plus-3/Thermasheath-3 provides R3.2 with dimensions of .5 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
  • The right insulation can save on energy and heating and cooling bills. Check out our Buying Guide for helpful tips.



Product Overview

  • Energy efficient
  • For residential and commercial buildings
  • ENERGY STAR approved
Model #: 754404
Sku #: 754404
Internet #: 100572981

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 Rmatte Plus-3/Thermasheath-3 provides R3.2 with dimensions of .5 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
  • The right insulation can save on energy and heating and cooling bills. Check out our Buying Guide for helpful tips.



Info & Guides

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Info & Guides

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Name Rmax R-Matte Plus-3 1/2 in. x 4 ft. x 8 ft. R-3.2 Polyisocyanurate Rigid Foam Insulation Board FOAMULAR 1/2 in. x 4 ft. x 8 ft. R-3 Square Edge Rigid Foam Board Insulation Sheathing 1 in. x 4 ft. x 8 ft. R-3.85 Insulating Sheathing Rmax Thermasheath-3 1 in. x 4 ft. x 8 ft. R-6 Polyisocyanurate Rigid Foam Insulation Board
Brand R-Matte Owens Corning R-Tech Thermasheath
Ratings (81) (73) (107) (71)
Sheathing Type ISO XPS EPS ISO
Insulation Location 2x4 Walls,2x6 Walls,Attics,Basements,Ceilings,Crawlspaces,Exterior Sheathing,Garage,Re-Siding 2x4 Walls,2x6 Walls,Exterior Sheathing 2x4 Walls,2x6 Walls,Attics,Basements,Crawlspaces,Exterior Sheathing,Exterior Wall Foundation,Garage,Under Slab 2x4 Walls,2x6 Walls,Attics,Basements,Ceilings,Crawlspaces,Ducts,Exterior Sheathing,Garage,Re-Siding
Product Width (in.) 48 in 48 in 48 in 48 in
Product Length (ft.) 8 ft 8 ft 8 ft 8 ft
Faced or Unfaced Faced Faced Faced Faced
Product Thickness (in.) .5 in .5 in 1 in 1 in
View Product View Product View Product View Product

Specifications

Dimensions

Coverage Area (sq. ft.)
32 ft²
Product Length (ft.)
8 ft
Product Thickness (in.)
.5 in
Product Width (in.)
48 in

Details

Faced or Unfaced
Faced
Insulation Features
Formaldehyde Free
Insulation Location
2x4 Walls,2x6 Walls,Attics,Basements,Ceilings,Crawlspaces,Exterior Sheathing,Garage,Re-Siding
Insulation R-Value
R3.2
Insulation Type
Foam Board Insulation
Interior/Exterior
Exterior
Product Weight (lb.)
7lb
Sheathing Type
ISO

Warranty / Certifications

Warranty Information
Standard Warranty

Specifications

Dimensions

Coverage Area (sq. ft.)
32 ft²
Product Length (ft.)
8 ft
Product Thickness (in.)
.5 in
Product Width (in.)
48 in

Details

Faced or Unfaced
Faced
Insulation Features
Formaldehyde Free
Insulation Location
2x4 Walls,2x6 Walls,Attics,Basements,Ceilings,Crawlspaces,Exterior Sheathing,Garage,Re-Siding
Insulation R-Value
R3.2
Insulation Type
Foam Board Insulation
Interior/Exterior
Exterior
Product Weight (lb.)
7lb
Sheathing Type
ISO

Warranty / Certifications

Warranty Information
Standard Warranty

Questions & Answers

Something wrong

I believe you got the thickness wrong on your page, its only 1/2 inch thick in the specs
Asked by: lemmings88
The product is "Rmax Plus-3" and dimensions 0.5x48x96 inch. Poor ad composition.
Answered by: IvarHusa
Date published: 2018-11-14

Is one side of this reflective?

Is one side of this reflective?
Asked by: Doug
Yes, this board has a white-matte (non-glare) aluminum facer and a reflective reinforced aluminum facer.
Answered by: CommunityAnswer
Date published: 2019-01-18

Can this be use for a basement ceiling and be painted? To avoid cold come to my first floor ?

With out cover it ..for and industrial look
Asked by: Cherry
I have used in garages,works great.If you paint the FOAM side , use only LATEX paint.
Answered by: cw
Date published: 2019-02-16

I am going to use these for a ceiling in our garage, can I nail these, or does it have to be glue...

I am going to use these for a ceiling in our garage, can I nail these, or does it have to be glued? I have only the beams to affix too. THanks!
Asked by: plab
Use roofing felt nails with the large plastic head.
Answered by: workingman
Date published: 2019-01-21
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Customer Reviews

Rmax R-Matte Plus-3 1/2 in. x 4 ft. x 8 ft. R-3.2 Polyisocyanurate Rigid Foam Insulation Board is rated 4.3 out of 5 by 81.
Rated 1 out of 5 by from Miserable Quality Control For some reason, Home Depot and the other big box store both switched from Dow Super Tuff R to this product. I've used Super Tuff R for 5 years (probably 600+ sheets per year) and found it to be of superior quality. After the switch to this new product, I spent 15 minutes sorting through the stack of 30+ sheets of this new product (R Matte Plus 3) and could only find 6 sheets that didn't have 10% or more the foil facing loose or peeling off the shiny side. In cut outs, pea-sized voids in the foam were common and I twice ran into silver dollar-sized voids where the foam was completely missing. Maybe the average person wouldn't notice the flaws, but I do not believe that an average sample of the sheets available at either of my local Home Depot stores would pass independent testing to meet the rated R value with so many voids and flaws. I love my local HD staff, see them almost daily, but this new product (which probably is cheaper for HD, but not for me) is a deal breaker.
Date published: 2013-01-14
Rated 5 out of 5 by from Good product Reading reviews of others' problems with this product, I wanted to go with GAF. Unfortunately it was not available and I had a time constraint and couldn't wait; I got the Rmax. Don't use a razor, you'll make a mess, doesn't cut well at all with razor. Can't score and snap either. Looked for alternatives; hand saw didn't work (some have said a circular saw worked - didn't try it), sharpened putty knife etc. didn't work. Nothing worked well till I tried a 9" serrated kitchen knife. Works like a charm! Clean cuts, very little mess Also, Rmax must have listened to quality complaints because I had no voids. They were square with consistent thickness. R value of 3.2 for 1/2", not bad at all. This also works well laid in front of a window. I helped cut down the heat till I could put window treatments back up. This product worked well for me, easy to work with, stayed flat, quality was good. Product is made in U.S.A. so shouldn't have to worry about toxic foreign products.
Date published: 2015-07-23
Rated 1 out of 5 by from Extremely poor product! Home Depot replaced the Dow "Tuff-R" polyiso board with this new Thermax product. The Dow board is far superior to the Thermax board and carries an R value of 6.5 per inch as opposed to Thermax's 5.9 per inch. Since they're both priced the same, that's an effective 10% price increase for H-D for the equivalent R value. The Thermax board also delaminates during cutting and sends hundreds of "floaters"(small beads of foam) in the air when it's cut. Very annoying!!(and possibly a health hazard?). I've probably used 300 sheets of Dow Tuff-R over the years but I won't be buying the Thermax board. I've discovered that Menard's carries 3/4", 1" and 1 1/2" polyiso board with an R value of 6.5 per inch at a 10% lower price than the Thermax board. That represents a 20% cost savings for the same R value! Worth the trip to O'Fallon for large purchases. Whoever the HD merchandise genious was who thought this was a good move ought to be questioned at length on this one!
Date published: 2014-02-16
Rated 5 out of 5 by from Worked great to insulate a linen closet that was extremely... Worked great to insulate a linen closet that was extremely cold causing the bathroom to be cold. Easy to cut and place, a real energy saver
Date published: 2018-12-18
Rated 5 out of 5 by from It's quilty Insulation board and easy to installed. It's quilty Insulation board and easy to installed.
Date published: 2018-12-18
Rated 5 out of 5 by from works very well, used in my craw space I feel... works very well, used in my craw space I feel the difference inside home, easy to use and easy to cut
Date published: 2019-02-12
Rated 4 out of 5 by from I used it to block the room to keep people... I used it to block the room to keep people from walk in the brand new carpet for house showing
Date published: 2018-12-11
Rated 5 out of 5 by from Used this to layer and insulate feral cat shelters. ... Used this to layer and insulate feral cat shelters. Cut easily and worked well.
Date published: 2019-02-12
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