Rmax 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
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Product Details
About This Product
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.
Highlights
- Highest R-Value: thinner profile & higher R-Value than other foam boards
- Continuous insulation: eliminates thermal bridging through the framing for improving thermal efficiency
- Air & water-resistive barrier: preventing air infiltration and water intrusion
- Radiant barrier: white on one side and reflective on the other for universal use
- Exposure rated: can be used in attics/crawl spaces/interior walls
- Easy to install: lightweight, durable and easy to handle
- The right insulation can save on energy and heating and cooling bills. Check out our Buying Guide for helpful tips.
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From the Manufacturer
Specifications
Dimensions
Coverage Area (sq. ft.) | 32 sq ft |
|---|---|
Product Length (ft.) | 8 ft |
Product Thickness (in.) | 0.5 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 |
Interior/Exterior | Exterior |
Number of Pieces | 48 |
Pack Size | 48 |
Product Weight (lb.) | 7 lb |
Sheathing Size | 8 ft. x 0.5 in. x 48 in. |
Sheathing Type | ISO |
Warranty / Certifications
Warranty Information | Standard Warranty |
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Questions & Answers
does it come in 60psi
Does this product have rodent repellent In it
I want to use this on my windows for my garage. If I use these with the reflective side out how bright will the reflection be when sunlight hits it directly? I don't want to annoy/blind my neighbors.
It could be pretty bright! It's really shiny. Maybe put some tint in between this and the glass.
They will not complain about the reflection, they might complain that it is ugly.
Can this product be used as a base fir art projects?
I guess you could but keep in mind it’s insulation.
It is very straight and not bendable. But it is basically like a giant piece of dense styrofoam with paper over it to make it smooth. You can definitely attach posters or other things to it and stand it. I would not be pressing hard on it because even though it is firm, it is styrofoam. We draped a large mural over it for display and it worked great.
Will this ever be in stock in 1/2 inch ?? RMAX foam board insulation
It’s only available on the eastern half of the USA.
Hi Frustrated, This is an in store stocked product for Home Depot. If the location near you is out of stock, please feel free to inquire or place a special order at the ProDesk.
I have a 15 by 16 ; three season, Eeezy Breese porch, say three feet off the ground. I insulated the ceiling and underneath the deck floor with bat insulation. My question is about the deck floor; insulated between the floor joist with bat insulation BUT would like to install an insulation board to increase the R rating. Question: what type of insulated board should I use?
Polyiso has the highest R-value per inch installed. Home Depot, carries R-Matte Plus-3 and Thermasheath. Either will work in this situation but I would recommend at least 1" thickness for increased board stiffness. Once the board is well secured with screws and washers or cap nails, use a construction tape to seal all edges of the board but make sure to use a hard plastic squeegee to firmly press the tape onto the board! This will help reduce air leaks through the assembly.
Your insulation technique will depend on many factors including moisture/water permeability. Check with the Pros at Customer Service in your local Home Depot for options and inventory.
what rating are you looking for, varies from 1/2" to 3"? you will need to have some vents to prevent humidity build up and mold problems
is other insulation required with this product
Yes, the R value is only 3.2 which is really low. I use insulation in the walls and then this on the exterior to increase overall R value and limit any wind penetration.
It depends on the application. It can be used as a stand alone product depending on what youre using it for. If you are planning to insulate a dwelling this would be in addition to your standard R-13/ R-19 insulation in your interior wall cavities. This does not give you much R value on its own. Ive used at to sheath the exterior of a home before wrapping it in Tyvek.
ThinHaus uses this product in combination with more flexible insulation materials in order to seal the gaps. You might do that, too. But if the opening fits here, this certainly can work by itself.
Really depends on what you want. This product is foil backed so you have a vapor barrier, but its really thin and give you only an R of 3. You need to cut to fit between the your 2x4 and seal the seams with foil tape or chalk.. This dents readily and can't be used as sheathing and can't be used as an underlayment layer.
In most situations the 1/2 will be good, you may get the 1 inch or double the 1/2 .I have in my garage doors the 1 inch ,facing straight west with full afternoon sun.People have come into my garage and ask if I have A/C in my garage.I just insulated my doors and windows in the garage.
How easy is it to cut?
Very easy to cut and work with. It easily cuts with a sharp razor knife -just like drywall but easier.
Easy to cut ... a utility knife with a long, sharp blade is the perfect tool
pretty easy,I cut from the FOIL side,SCORE IT FIRST,than come back and keep cutting in the scored lines.
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