SKU: 52778383651

Owens Corning R-10 (25 PSI) FOAMULAR 250 Extruded Polystyrene Foam Board Insulation, 2 in. x 4 ft. x 8 ft., Square Edge

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Description

Owens Corning R-10 (25 PSI) FOAMULAR 250 Extruded Polystyrene Foam Board Insulation, 2 in. x 4 ft. x 8 ft., Square EdgeFOAMULAR 250 XPS Foam Board Insulation, R 10, 2x4x8 Durable FOAMULAR 250 XPS board delivers R 10 thermal performance with 25 PSI compressive strength for exterior sheathing, foundations, and under slab applications. The 2 in. thick, 4 ft. x 8 ft. panel resists moisture, is easy to score and snap, and installs cleanly for long lasting energy savings. Key Features: High Thermal Performance: R 10 insulation value with XPS technology for energy efficiency

FOAMULAR 250 XPS Foam Board Insulation, R-10, 2x4x8

Durable FOAMULAR 250 XPS board delivers R-10 thermal performance with 25 PSI compressive strength for exterior sheathing, foundations, and under-slab applications. The 2 in. thick, 4 ft. x 8 ft. panel resists moisture, is easy to score and snap, and installs cleanly for long-lasting energy savings.


Key Features:

  • High Thermal Performance: R-10 insulation value with XPS technology for energy efficiency
  • Strong & Durable: 25 PSI compressive strength suitable for walls, foundations, and under-slab use
  • Moisture Resistant: Non-wicking XPS helps retain R-value even in wet conditions
  • Easy to Work With: Boards score, cut, and snap cleanly for fast installation
  • Square Edge Panel: 2 in. thick, 4 ft. x 8 ft. sheet provides 32 sq. ft. of coverage

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Insulation Type Extruded Polystyrene (XPS) Foam Board
Model/SKU 52DD
Compressive Strength 25 PSI
Insulation R-Value R-10
Faced or Unfaced Unfaced
Interior/Exterior Exterior
Insulation Location Exterior sheathing, exterior wall foundation, under slab
Compatible Install Surface Plywood
Insulation Features Formaldehyde Free; Vapor Retardant
Number of Pieces 1
Pack Size 1
Coverage Area 32 sq. ft.
Product Length 8 ft
Product Width 48 in
Product Thickness 2 in
Edge Type Square Edge
Sheathing Type XPS
Warranty Lifetime Limited
Product Weight 7.5 lb

Frequently Asked Questions (FAQ):

Q: Can this be used below grade or under slabs?
A: Yes—FOAMULAR 250 is rated for exterior wall foundations and under-slab applications; verify local code requirements.


Q: Is the board faced or unfaced?
A: Unfaced XPS board.


Q: What are the panel dimensions and coverage?
A: 2 in. thickness, 48 in. width, 8 ft. length; covers 32 sq. ft. per sheet.


Q: Does it resist moisture?
A: Yes, XPS construction provides superior moisture resistance and helps maintain R-value.


Q: How is it cut and installed?
A: Score with a utility knife and snap to size; attach per manufacturer instructions using compatible adhesives/fasteners.


Sleek, High-Performance Insulation with Iconic Pink Style

FOAMULAR 250 brings a crisp, architectural polish to building envelopes while quietly elevating energy performance. Its slim 2-inch profile and square edges lay clean and true, creating seamless planes ready for finish materials. Pair it behind siding or under slab to craft spaces that feel composed, dry, and temperature-stable. This is the modern essential—smart, resilient insulation for luxurious comfort.


Upgrade your build with FOAMULAR 250 today for durable, moisture-resistant R-10 performance and lower energy costs.

Warranty

Installation

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 52778383651

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jmb02129
Cuba, US
★★★★★ 5
Fantastic Boots!
Size: 8.5, Color: Redwood/Gum 10
Completely satisfied with these boots. True to size, well made, comfortable from the get-go; not break in needed. Waterproof- really. The Red Suede has withstood a nasty winter season & still looks great. Good traction. I like the ankle height which looks good with long, mid length pants & leggings. I love the easy slip on/off aspect..made getting ready for dog walking easy. I 100%recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
P
Verified Purchase
Paige
Houston, US
★★★★★ 5
Definitely worth the price
Size: 6.5, Color: Black/Black
Absolutely love these boots! I originally bought them to wear in NYC in December & they did not disappoint. They were comfortable, cute, durable and worked well in the slush/snow. The traction on the bottom is also nice! They kept me warm with wool socks. I wear them almost daily now. Perfect for everyday. easy to wear with variety of outfits. Good every day shoe.
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Reviewed in the United States on January 3, 2026
K
Verified Purchase
Kimberly
Pawtucket, US
★★★★★ 5
Snagged a deal
Size: 7, Color: Redwood/Gum 10
I waited and waited to get these boots! I knew I was chancing it, but they went on sale, and I snagged them! I am a size 7, and they fit nicely with socks. a little loose, barefooted, but what psycho wears boots without socks? They are comfortable and really well-made.
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Reviewed in the United States on April 8, 2026
A
Verified Purchase
ashlynnk
Alexandria, US
★★★★★ 4
Cute, comfortable waterproof boots (a little snug to put on)
Size: 7, Color: Velvet Tan/Gum 2
These are really cute Chelsea-style boots and feel very comfortable once they’re on. The waterproof material is great for wet weather and the sole feels sturdy with good traction. They look stylish enough to wear casually but still feel practical for rainy days. The only downside is they can be a little difficult to put on at first because the opening is somewhat snug, but once they’re on they fit well and feel supportive. Overall they’re a great waterproof boot and I’ve enjoyed wearing them.
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Reviewed in the United States on March 17, 2026
A
Verified Purchase
Abby B
Dallas, US
★★★★★ 5
Surprisingly great for my wide feet and high instep!
Size: 10.5, Color: Velvet Tan/Gum 2
So thrilled I took a chance on these. Finding boots is impossible for me. I have wide feet, a super high instep, a bunion on one foot, and I wear a hard to find size (10.5). I ordered the 10.5 and 11 in these expecting I might need to size up for width (if I could even get them on). It was a struggle getting the 10.5s on the first time, and once I did they were somewhat uncomfortable on the top of my left foot. But I read that they would relax so decided to give it a go because I need waterproof boots for an upcoming trip and the 11s felt too long. After two days of light wear, they are already breaking in and I have no more discomfort. Getting them on is already easier and they are plenty wide enough and very comfortable to walk in. These are true to size. Super happy and worth a day of mild discomfort to break them in!
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Reviewed in the United States on March 7, 2026

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