Internet #100572981

Model #754404

Store SKU #754404

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
  • See More Details

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Product Overview

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.

Info & Guides

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Specifications

Dimensions

Coverage Area (Sq.Ft)
32
Product Length (ft.)
8 ft
Product Thickness (in.)
.5 in
Product Width (in.)
48 in

Details

Compatible Install Surface
Cement,Existing Drywall,Wood
Faced or Unfaced
Faced
Insulation Features
Formaldehyde Free
Insulation Location
2x4 Wall,2x6 Wall,Attic,Basement,Ceiling Insulation,Crawlspace,Exterior Sheathing,Garage,Re-Siding
Insulation R-Value
R3.2
Insulation Type
Foam Board Insulation
Interior/Exterior
Exterior
Number of Pieces
96
Product Weight (lb.)
7
Sheathing Size
8 ft. x .5 in. x 48 in.
Sheathing Type
ISO

Warranty / Certifications

Warranty Information
Standard Warranty

Questions & Answers

141Questions19Answers

Does it come in three-quarter inch thickness

Asked by Bricklayer November 16, 2020
2
Answers

Yes. R-Matte Plus-3 comes in 3/4" thickness. However, each Home Depot location carries specific thicknesses. The customer service desk may be able to order 3/4" if the quantity is sufficient. They may also carry Thermasheath-3 at 3/4". The current community answer provides a link to polystyrene product which is by NO MEANS an equivalent substitute for Polyiso.

Cant find 1” in this board in south florida. Want to use on floor of RV. Can i double up by putting the foil facing down and top piece foil facing up

Asked by Beth November 15, 2020
1
Answer

I would think so , as 2 X 1/2 inches will make 1 inch ,it would be double. Great insulation, also GREAT SOUND BARIER.

Can the 1/2" thick board be sandwiched between a 3/4" plywood subfloor and 1/2" plywood underlaym...

Asked by Nam October 29, 2020
1
Answer

Yes ... but you are making a mistake. A "dead" floor is a result of a solid floor. The "deadest" floor would be a concrete slab ... no vibrations or transmission of sonic energy. Putting 3/4" OSB on a concrete slab and making sure that there are no moving seams or gaps would give you the "deadest" surface. Now, to that, you are suggesting a layer of foam that can compress and then another layer of wood that can "thump" and vibrate. Can you do it? Sure. Will it work ... nope. And over time, it will get worse and worse.

Could one use this product under vinyl panel flooring, both for insulation purposes but mostly to...

Asked by Will October 28, 2020
2
Answers

No, vinyl plank flooring requires a rigid surface such as concrete or plywood. The insulation will crush under the weight of the floor and the traffic crossing it. Use plywood the raise the subfloor level. Mike

is this the best sheathing for sound dampening

Asked by Jimi October 9, 2020
2
Answers

Eh.... This is rigid foil backed foam, and as such, won't dampen sound very well. You need something denser (regular weight drywall) or something absorbent (open cell foam- acoustic foam), properly installed roll fiberglass works reasonably well too.

Does the white side say RMAX or is it just plain white? I need something like this to insulate m...

Asked by Bill September 24, 2020
1
Answer

It’s kind of a silver matte on the RMAX side and the reverse side is basically the same finish as aluminum foil so probably not ideal either. Assuming you have stud walls and not a pole barn type garage maybe consider unfaced batt insulation if you won’t be drywalling? Much more R-value

Can this be used to make a plenum?

Asked by Sandy September 10, 2020
2
Answers

This may not be the best choice and it will certainly take some engineering knowhow to get it right, but it can work.

Can it be used to insulate a horse barn or is it harmful to animals?

Asked by Gab September 7, 2020
3
Answers

Good Morning, generally polyiso rigid foam insulation is of no harm to humans or animals when used as building insulation.

Is this fire rated? I'm curious if I can use this to create an insulation box around recess can l...

Asked by Lmtran4 August 19, 2020
2
Answers

R-Matte Plus-3 generally needs to be covered with drywall products when installed on the interior of a wall surface. When used in an attic as a insulation box, it might be acceptable but the local code official would be able to verify.

Can this be used in my packaging to protect my oil paintings being sent to customers? Is it punct...

Asked by MAD August 8, 2020
3
Answers

It is not puncture proof. It will provide some padding and protection.

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

Customer Reviews

  • 207 Customer Reviews
  • 4.5 out of 5 stars overall
92% of customers recommended.
Overall Ratings
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Easy to cut and didn't make a mess. Used it for my garage door and didn't break when I slightly b...
Easy to cut and didn't make a mess. Used it for my garage door and didn't break when I slightly bent it during installation. Cut the temperature down at least 10 degrees since my garage door faces south.
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I used the board to outline the floor of my John boat. I found out from b 4 that it is water and ...
I used the board to outline the floor of my John boat. I found out from b 4 that it is water and weather proof. The plywood was worn out and i ralized it was 2 heavy. I came up with the idea to usr the foam board. I cut it 2 fit n between the ridges and use l clamps 2 hold it down. It really made me believe thst it csn b used 4 more than you think.
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good product...fixed my problem with easy install.
good product...fixed my problem with easy install.
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I actually used this product to insulate three bedroom windows. It has really helped to insulate...
I actually used this product to insulate three bedroom windows. It has really helped to insulate the room.
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2
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We had not trouble at all installing this on the ceiling of our new building. We would buy it ag...
We had not trouble at all installing this on the ceiling of our new building. We would buy it again for our next project.
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2
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Installed under sheet metal deck roof. Effectively keeps the deck cool in direct sun and prevent...
Installed under sheet metal deck roof. Effectively keeps the deck cool in direct sun and prevents condensation from wetting the framing and deck.
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6
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Very deceptive. I live 2 hours away and purchased the item online and then drove to pick the item...
Very deceptive. I live 2 hours away and purchased the item online and then drove to pick the item up. The way it is listed it certainly appears the borders is 3&1-2in board, I know this is not just my stupidity because when I went to pick it up the customer service person made the same analysis. certainly would not have driven 2 hours for 1/2in thick board.
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7
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Made a great Design Board!
Used two boards and taped them together with duct tape, stood them up and pin my quilt fabrics to them so I can see my design before sewing it! Works out great!
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8
0
Port St Lucie, FL
Good product
Quality :
5
Value :
5
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.
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48
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Bluffton, SC
Garage Door insulation
I used this product as a garage door insulation. Installed it on each door panel cut to fit with the foil side facing outward. Must install it on some type of standoff, I used 1 inch pink foam board strips I cut and glued to the door panels, then put this over them leaving an air gap between the foil side of the R-Max panel and the door panel. What a huge difference this makes in the temps inside the garage. My garage door faces south-southeast so it gets very hot and makes the garage hot too. Not anymore. Great product and easy to work with. I added a bubble radiant barrier to the inside as well to keep heat in in the winter too.
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