Internet #100320335

Model # 24DD

Store SKU #528022

Store SO SKU #192627

0748232100371

Owens Corning

FOAMULAR 250 2 in. x 2 ft. x 8 ft. R-10 Tongue and Groove Rigid Foam Board Insulation Sheathing

  • Saves energy and resists moisuture with limited lifetime warranty
  • Tongue and groove board edge to reduce gaps and eliminate drafts
  • Closed cell XPS foam panel can be layered for more cost savings
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Frequently Bought Together

Frequently Bought Together

Product Overview

  • Saves energy and resists moisuture with limited lifetime warranty
  • Tongue and groove board edge to reduce gaps and eliminate drafts
  • Closed cell XPS foam panel can be layered for more cost savings
FOAMULAR Extruded Polystyrene (XPS) Rigid Foam Insulation offers a comprehensive line of products in a wide choice of sizes, thicknesses and edges with a Lifetime Limited Warranty for the life of the home or building. The products are easy to handle, score, cut and install & no special tools are needed. Products can be used on wood, steel framing or concrete walls. FOAMULAR XPS resists moisture and retains R-value even after exposure to standing water and wet soil. Only XPS foam to be GREENGUARD Gold Certified and the first XPS foam certified by Scientific Certification Systems (SCS) to contain a minimum of 20 percent recycled content.
  • Dimensions: 2 in. x 2 ft. x 8 ft.
  • Application: Exterior Foundation Walls, Underslab, Foundations and Crawlspaces
  • Designed to resist moisture and helps to block mildew
  • Has a higher R-value than wood fiber, plywood or 1/2 in. gypsum board products



  • Click here to learn more about Energy Efficiency
  • Buying guide and insulation calculator:

    insulation buying guide
    Insulation calculator button

Product Overview

  • Saves energy and resists moisuture with limited lifetime warranty
  • Tongue and groove board edge to reduce gaps and eliminate drafts
  • Closed cell XPS foam panel can be layered for more cost savings
Model #: 24DD
Sku #: 528022
Internet #: 100320335

FOAMULAR Extruded Polystyrene (XPS) Rigid Foam Insulation offers a comprehensive line of products in a wide choice of sizes, thicknesses and edges with a Lifetime Limited Warranty for the life of the home or building. The products are easy to handle, score, cut and install & no special tools are needed. Products can be used on wood, steel framing or concrete walls. FOAMULAR XPS resists moisture and retains R-value even after exposure to standing water and wet soil. Only XPS foam to be GREENGUARD Gold Certified and the first XPS foam certified by Scientific Certification Systems (SCS) to contain a minimum of 20 percent recycled content.

  • Dimensions: 2 in. x 2 ft. x 8 ft.
  • Application: Exterior Foundation Walls, Underslab, Foundations and Crawlspaces
  • Designed to resist moisture and helps to block mildew
  • Has a higher R-value than wood fiber, plywood or 1/2 in. gypsum board products



  • Click here to learn more about Energy Efficiency
  • Buying guide and insulation calculator:

    insulation buying guide
    Insulation calculator button

Info & Guides

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Compare Similar

Compare Similar Products
Brand Owens Corning Owens Corning Amvic
Name FOAMULAR 250 2 in. x 48 in. x 8 ft. R-10 Scored Squared Edge Insulation Sheathing FOAMULAR 150 1 in. x 4 ft. x 8 ft. R-5 Scored Square Edge Rigid Foam Board Insulation Sheathing Multipurpose High Density Insulation Kit R10 2-3/8 in. x 24 in. x 48 in. (5-Panels)
Price
$29.87
$19.55
$50.99
Ratings (221) (202) (44)
Sheathing Type XPS XPS EPS
Insulation Location Exterior Sheathing,Exterior Wall Foundation,Under Slab 2x4 Walls,2x6 Walls,Exterior Sheathing Basements,Exterior Wall Foundation,Floors,Garage,Under Slab
Product Width (in.) 48 in 48 in 24 in
Product Length (ft.) 8 ft 8 ft 4 ft
Faced or Unfaced Unfaced Unfaced Unfaced
Product Thickness (in.) 2 in 1 in 2.375 in
View Product View Product View Product

Specifications

Dimensions

Coverage Area (sq. ft.)
16 ft²
Product Depth (in.)
0
Product Height (in.)
0
Product Length (ft.)
8 ft
Product Thickness (in.)
2 in
Product Width (in.)
24 in

Details

Faced or Unfaced
Unfaced
Insulation Features
Formaldehyde Free,Vapor Retardant
Insulation Location
Exterior Sheathing,Exterior Wall Foundation,Under Slab
Insulation R-Value
R10
Insulation Type
Foam Board Insulation
Interior/Exterior
Exterior
Product Weight (lb.)
4.4 lb
Sheathing Size
8 ft. x 2 in. x 24 in.
Sheathing Type
XPS

Warranty / Certifications

Warranty Information
Lifetime Limited

Specifications

Dimensions

Coverage Area (sq. ft.)
16 ft²
Product Depth (in.)
0
Product Height (in.)
0
Product Length (ft.)
8 ft
Product Thickness (in.)
2 in
Product Width (in.)
24 in

Details

Faced or Unfaced
Unfaced
Insulation Features
Formaldehyde Free,Vapor Retardant
Insulation Location
Exterior Sheathing,Exterior Wall Foundation,Under Slab
Insulation R-Value
R10
Insulation Type
Foam Board Insulation
Interior/Exterior
Exterior
Product Weight (lb.)
4.4 lb
Sheathing Size
8 ft. x 2 in. x 24 in.
Sheathing Type
XPS

Warranty / Certifications

Warranty Information
Lifetime Limited

Questions & Answers

Is this made of polystyrene foam?

Asked by: Bret
Yes, Owens Corning FOAMULAR 250 Extruded Polystyrene (XPS) Insulation is a closed cell, moisture-resistant rigid foam board well suited to meet the needs for a wide variety of building applications.
Answered by: Jersey
Date published: 2019-01-08

Would this be good to use on an attic floor?

Asked by: Dave
Hello Dave, Foamular may be used in this application, however, it would need to be installed over wood sheathing and covered with wood sheathing if you plan on using the attic for storage. Thank you for your inquiry!
Answered by: OwensCorning
Date published: 2019-02-02

what is the r value of this product?

Asked by: Hub
read the description or look at he picture.
Answered by: tum
Date published: 2019-01-31

I plan to use this in a project to create a insulation box for an attic whole house fan in the winter. Will this work?

I plan to use this to box in my whole house fan to prevent heat from going theough the fan louvers and into the attic. This is a big problem in cold northeast. I plan yo create a 36”x36l box with a cap and just glue it togther. Just taking the cap off in the warmer weather months. Will this work and any issues using in an attic space?
Asked by: VoidNY
I think it will. I'd use the adhesive made for foam board, and maybe add a few finishing nails, or something similar to hold it together, while the adhesive sets up.
Answered by: Brent
Date published: 2018-11-09
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Customer Reviews

FOAMULAR 250 2 in. x 2 ft. x 8 ft. R-10 Tongue and Groove Rigid Foam Board Insulation Sheathing is rated 4.7 out of 5 by 221.
Rated 1 out of 5 by from Tongue and grove - very poor quality I purchased this insulation after using a 2"x2'x8' Dow tongue and grove insulation for 1/2 of my foundation. I needed additional insulation but the company I purchased the Dow insulation from was closed on Sunday. I needed to get the project done so I was happy Home Depot carried the same size insulation but quickly realized that the tongue and groove of the Owens Corning insulation were extremely difficult to joint together compared to the much large tongue and groove of the Dow product. It took me twice as long the put up the Owens Corning insulation because I spent a lot of time trying to get the boards to join...the tongue and groove were terrible and many of the panels just wouldn't align no matter how hard and how carefully I tried. So much for an R value of 10 when I couldnt get the panels to completely join together. I would not purchase this product again. Go with the Dow product that has a much bigger and better tongue and grove. (And it was the same price).
Date published: 2015-07-13
Rated 5 out of 5 by from Owens-Corning 2-inch rigid insulation. Great stuff I have used this product for insulating basement walls, crawlspace walls, and other related projects. The two-inch thick product has R.10 and I have doubled up to 4 inches in certain spots to get R.20 total. This product is ideal for places where you do not stud out the area such as workshops, crawlspaces, etc. Also, this is available in the 2 foot by 4 foot size! So, there is no need to cut the panels down from a four-foot width panel to get through problem accessways such as those for crawl spaces. Lastly, I eagerly recommend this product to bring attic access panel R-values up. Just cut to fit your access plywood panel and glue the insulation to it. A dream product that works, is easily cut and worked, and does the job!! A perfect score from me.
Date published: 2010-01-10
Rated 5 out of 5 by from I believe this is a better way to insulate than fiberglass batts. After spending too much time tr... I believe this is a better way to insulate than fiberglass batts. After spending too much time trying to cut it into custom widths with a razor knife, I discovered that a fine reciprocating saw blade is the way to go. I actually sprayed Dow Froth Pack foam into the wall and then immediately pushed this in over it. I figure I got at least R17 with the combination
Date published: 2019-04-23
Rated 5 out of 5 by from We bought it to float a small pump in our... We bought it to float a small pump in our pond. The insulation worked so well we had to reduce some of it in the deck. I took the rest of it and finished insulating a 12 foot shed. It was easy to cut and a dream to install. I only wish I had done all of it with this product.
Date published: 2019-05-29
Rated 5 out of 5 by from used over a corrugated metal roof, over the basement cellar/porch... used over a corrugated metal roof, over the basement cellar/porch area. Should keep the condensation down as well as provided 2 inches less concrete to have the perfect height to walk out the front door to porch.
Date published: 2019-04-23
Rated 4 out of 5 by from I bought this to cut plywood on the ground with... I bought this to cut plywood on the ground with a track saw. The foam board is strong enjoying to walk on but does not add to resistance while cutting plywood’s.
Date published: 2019-05-14
Rated 5 out of 5 by from This stuff is very easy to work with. I... This stuff is very easy to work with. I cut it using a drywall saw, and had no issues. I also used the adhesive to attach to my walls.
Date published: 2019-04-30
Rated 5 out of 5 by from The scored sheets make it easy break into smaller sheets. Used for insulating basement slab edge... The scored sheets make it easy break into smaller sheets. Used for insulating basement slab edge required by code.
Date published: 2019-05-28
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