3/4 in. x 1.25 ft. x 4 ft. R-2.65 Polystyrene Panel Insulation Sheathing (6-Pack)
- Interested in purchasing a pallet? Buy 30
- Polystyrene foam ensures excellent insulation
- Ideal for both internal and external applications
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Product Details
Provide your home with effective insulation with the Cellofoam 3/4 in. x 14-1/2 in. x 4 ft. Polystyrene Foam Insulation Board. Ideal for both interior and exterior use. This durable insulation features a flame retardant additive for additional safety.
- Ideal for interior or exterior use
- Energy star compliant
- Rigid polystyrene material
- Contains a flame retardant additive
- Click here to learn more about Eco Options and Energy Efficiency
- How much do you need. Let our calculator help:
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Specifications
Questions & Answers
Jun 2, 2021
Exactly what I needed to insulate the exterior concrete block wall that is also 10 ft of interior...
Exactly what I needed to insulate the exterior concrete block wall that is also 10 ft of interior wall of our master bath. Our house was built in 1970 with no wall insulation at all- just concrete block with 3/4in furring strips fastened with old -school masonry nails and drywall. I wanted to add insulation and possibly some electrical wiring, so I decided to frame out the wall with 2x3in studs laid flat against the block at 16in-on-center (where feasible) and fastened with a certain brand of blue concrete anchors, which gave me 1-1/2in of actual clearance inside the wall. These styrofoam panels are just wide enough to need a bit trimmed off, which allows for a nice snug fit between studs. Just installed them a few days ago and while I'm certain we'll have an improvement in temperature stability (especially once I've systematically reno-ed the rest of the outer walls), the first thing I've noticed is how much quieter that bathroom is. I haven't hung any drywall yet, but now I can barely hear the kids and grandkids shouting and splashing in the pool just outside that outer wall! Could be I'm getting old and my hearing is finally going south after playing in rock bands my whole life, but I'll go ahead and credit the insulation. :))
by
May 17, 2020
Product photo is not clear
The photo shows a product that looks blue, so I thought it was extruded polystyrene. This is "Styrofoam" (expanded polystyrene), which is fragile and messy (when you cut it, little bits of it fly off and go everywhere). Because it looked blue, I thought it was extruded polystyrene, and so I had to return it because this stuff would break if you tried to make a duct out of it.
by
Dec 24, 2019
Conveniently sized for easy transport and use. Easy to cut with a hot wire cutter to make insula...
Conveniently sized for easy transport and use. Easy to cut with a hot wire cutter to make insulated box liners.
by
Oct 15, 2019
Though I would recommend for the price size and novice ability. I say be prepared for it to not b...
Though I would recommend for the price size and novice ability. I say be prepared for it to not be quite like the directions. It’s not as clean of a break as one would like and messy. After all it is just styrofoam. Served it purpose for us with some metal tape to insulate a outdoor cat house. Will know more When real cold sets in.
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Jun 28, 2019
Simple insulating our plenum in attic. We cut board to length used some mastic or foam to apply ...
Simple insulating our plenum in attic. We cut board to length used some mastic or foam to apply over top of our metal plenum. Cheaper then paying somebody.
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May 10, 2023
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May 1, 2023
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Mar 15, 2023
I use these to insulate shipping boxing, they work great....
I use these to insulate shipping boxing, they work great. The panels are easily cut with an 18mm snap-off knife.
by
Mar 8, 2023
Will use again
So easy to work with. And does an excellent job
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Feb 15, 2023
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Compare Similar Foam Board Insulation
 |  |  | |
| Brand | R-Tech | RMAX | |
| Name | 3/4 in. x 1.25 ft. x 4 ft. R-2.65 Polystyrene Panel Insulation Sheathing (6-Pack) | 1 in. x 48 in. x 8 ft. R-3.85 Insulating Sheathing | Pro Select R-Matte Plus-3, 0.5 in. x 48 in. x 8 ft. R-3.2 ISO Rigid Foam Board Insulation |
| Price | $1098 | $1598 | $1992 |
| Ratings | (147) | (332) | (279) |
| Product Thickness (in.) | 0.75 in | 1 in | 0.5 in |
| Insulation R-Value | R2.65 | R3.85 | R3.2 |
| Insulation Location | 2x4 Wall,2x6 Wall,Attic,Basement,Ceiling Insulation,Crawlspace,Exterior Sheathing,Floor,Garage,Re-Siding | 2x4 Wall,2x6 Wall,Attic,Basement,Crawlspace,Exterior Sheathing,Exterior Wall Foundation,Garage,Under Slab | 2x4 Wall,2x6 Wall,Attic,Basement,Ceiling Insulation,Crawlspace,Exterior Sheathing,Garage,Re-Siding |
| Insulation Features | Water Resistant | Structural | Formaldehyde Free |
| Faced or Unfaced | Unfaced | Faced | Faced |
| Sheathing Type | EPS | EPS | ISO |
| Pack Size | 48 | 48 | |
| View Product | View Product | View Product |
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