Internet #202085962

Model #52DD

Store SKU #307101

Store SO SKU #192627

FOAMULAR 250 2 in. x 48 in. x 8 ft. R-10 Scored Squared Edge Insulation Sheathing

  • Saves energy and resists moisture with limited lifetime warranty
  • Scored edge easily snaps into smaller boards for best fit
  • Strong, lightweight pink foam panels don't require special tools
  • See More Details

Product Overview

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Strong And Durable

FOAMULAR® XPS is stronger and more flexible than EPS.

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Resistant To Mold & Moisture

FOAMULAR® XPS has up to 13x better water resistance than EPS.

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Easy To Cut, Form & Fit

FOAMULAR® XPS cuts cleaner and doesn't break apart or crumble like EPS.

man installing Foamular in a basement

Insulating Basement Walls

Without adequate insulation, it’s difficult to heat and air-condition a basement room effectively. Owens Corning® FOAMULAR® is the easy-to-install, efficient solution for insulating basement walls.

Man preparing to install Foamular in a crawlspace

Insulating Crawlspace Walls

Because heat m.igrates to cold through the bottom of the house, an uninsulated crawlspace means you’ll use more energy to heat your home during winter and to cool it in summer. Insulate your crawlspace with Owens Corning® FOAMULAR®.

Man installing Foamular in a garage ceiling

Insulating Garage Or Bonus Room

Use Owens Corning® FOAMULAR® to insulate your garage ceiling / bonus room floor to effectively condition the space.

Man installing Foamluar on an exterior wall surface

Insulating Exterior Facing Wall Cavity

Owens Corning® FOAMULAR® provides a higher R-value per inch than other materials commonly used for wall cavity insulation.

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Warranty

Warranted to retain at least 90% of its advertised R-value over the lifetime of the product - Industry leading warranty across all thicknesses and compressive strengths.

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R-Value

The R-value for insulation measures how well insulation materials can resist heat - the higher the R-value, the greater the insulation performance. FOAMULAR is best ­ at maintaining R-value where moisture is present.

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Third Party Certifications

FOAMULAR is certified for Recycled Content and Air Quality by esteemed third party organizations.

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Make More Possible

Owens Corning is a global leader in engineered materials for roofing, insulation and composites.

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World Class Sustainability

For us, sustainability is about meeting the needs of the present while leaving the world a better place for the future.

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OC Gives Back

We make a difference by empowering people and the communities in which we live and work.

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 and 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% recycled content.
  • Dimensions: 2 in. x 48 in. x 8 ft.
  • Application: exterior foundation walls, under slab, 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
  • FOAMULAR has superior moisture resistance compared to EPS and Polyiso foam boards
  • FOAMULAR 150 and 250 are available in various thicknesses and R-values, the difference is the compressive strength. FOAMULAR 150 has a compressive strength of 15 psi and FOAMULAR 250 is 25 psi
  • FOAMULAR is not rated for STC (sound transmission) and does not have any soundproofing properties. Owens Corning fiberglass batts and rolls are great options for acoustic applications.
  • FOAMULAR is a vapor retarder, not a vapor barrier. Please check your local building codes for vapor barrier/retarder requirements.
  • If being used in an interior construction application, painting the FOAMULAR is not recommended as FOAMULAR cannot be left exposed and will need to be covered by a 15 minute thermal barrier such as drywall.
  • If being used for crafts, oil-based and latex paints can be used with FOAMULAR products.
  • If you’re looking to insulate your garage door, Owens Corning Garage Door Insulation Kit is an easy, fast and affordable way to keep your garage warm in winter and cool in the summer.
  • If you’re looking to ventilate your attic rafters, Owens Corning Raft-R-Mate is a XPS foam vent designed to assure unrestricted airflow from the soffit to the ridge vent.
  • FOAMULAR is available in two edge configurations:
  • Square Edge – designed to fit flush next to adjoining boards
  • Scored Square Edge - comes with 3 factory scores, so that you can take a 4’ sheet, break it in two and have two, 2’ wide sheets (middle score), or you can break it into three 16” wide pieces by snapping at the left and right score.
  • Click here to shop Loctite foamboard adhesive
  • Click here to learn more about Eco Options and Energy Efficiency

Info & Guides

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Compare Similar Foam Board Insulation

0.625 in. x 48 in. x 24 in. 72 sq. ft. R-3 Graphite Radiant Barrier Wall Insulation Kit (9-Sheets/Kit)Multipurpose High Density Insulation Kit R10 2-3/8 in. x 24 in. x 48 in. (5-Panels)
current product
FOAMULAR 250 2 in. x 48 in. x 8 ft. R-10 Scored Squared Edge Insulation Sheathing
BrandSilveRboardAmvicOwens Corning
Name0.625 in. x 48 in. x 24 in. 72 sq. ft. R-3 Graphite Radiant Barrier Wall Insulation Kit (9-Sheets/Kit)Multipurpose High Density Insulation Kit R10 2-3/8 in. x 24 in. x 48 in. (5-Panels)FOAMULAR 250 2 in. x 48 in. x 8 ft. R-10 Scored Squared Edge Insulation Sheathing
Price
$5198
$5608
Ratings
(7)
(102)
(357)
Product Thickness (in.).625 in2.375 in2 in
Insulation Location2x4 Wall,2x6 Wall,2x8 Wall,Attic,Basement,Ceiling Insulation,Crawlspace,Exterior Sheathing,Garage,Metal Building,Re-SidingBasement,Exterior Wall Foundation,Floor,Garage,Under SlabExterior Sheathing,Exterior Wall Foundation,Under Slab
Insulation R-ValueR3.0R10R10
Sheathing TypeEPSEPSXPS
Insulation FeaturesFormaldehyde Free,Moisture Retardant,Mold Resistant,Soundproofing Insulation,Vapor RetardantFormaldehyde Free,Vapor RetardantFormaldehyde Free,Vapor Retardant
Compatible Install SurfaceCement,Concrete,Existing Drywall,Existing Insulation,PlywoodCement,Concrete,PlywoodPlywood
Product Length (ft.)18 ft10 ft8 ft
Product Width (in.)48 in48 in48 in
Faced or UnfacedFacedUnfacedUnfaced
View ProductView ProductView Product

Specifications

Dimensions

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

Details

Compatible Install Surface
Plywood
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
Number of Pieces
1
Product Weight (lb.)
7.5 lb
Sheathing Size
8 ft. x 2 in. x 48 in.
Sheathing Type
XPS

Warranty / Certifications

Warranty Information
Lifetime Limited

Questions & Answers

280Questions23Answers

Can this be used to insulate an outdoor cat house, where temps reach below zero?

Asked by Crystal October 14, 2020
2
Answers

Hello Crystal, Owens Corning Foamular products can be used in outdoor applications. However, you will need to ensure it is protected from UV exposure. Thank you for your inquiry!

Is this good on steel garage doors and if so which R factor is good for the Midwest? tyvm ahead of time

Asked by Lawnmowerman October 9, 2020
3
Answers

two inch thick is about R-10 can you glue dour inches (R-20)?

Can these panels be used to insulate a aluminum garage door with double stick tape

Asked by Tom October 3, 2020
4
Answers

Hello Tom, This is not a recommended application for Owens Corning Foamular. The Foamular product is combustible and must be covered by a 15 minute thermal barrier such as 1/2" drywall. Thank you for your inquiry!

Will this work outside under part of my cement walkway to raise up a corner of it.

Asked by Ross September 21, 2020
2
Answers

No. It may compress under a heavy load. Better check the psi it can take.

can you apply to crawl space masonry walls?

Asked by LMK September 15, 2020
1
Answer

Hello LMK, More information is needed in order to assist you. Please contact your local Home Depot ProDesk or an Owens Corning representative at 1-800-GET-PINK for assistance with your project. Thank you for your inquiry!

In a cold room or fruit cellar do I also need to cover the foam insulation or can I leave it if I need to cover it what

Asked by Gene September 12, 2020
2
Answers

Hello Gene, Owens Corning Foamular products are combustible and must be covered with a 15-minute thermal barrier such as 1/2" gypsum. Thank you for your inquiry!

What are the specification and requirements for installation on a concrete floor? I will install ...

Asked by Quentin September 10, 2020
3
Answers

Dear Quentin: Good question! First, you picked the right type of Foamular. The '250' version provides 25 PSI of 'compressive strength', which is ideal under and over residential concrete slabs. Seal the joints and edges to block air/moisture leaks. HVAC mastic and DAP230 work well for joints and small gaps. Use the 'Window and Door' version of Great Stuff spray foam for the perimeter and larger gaps. Second, install 3.4" Plytanium over the foam board, with the boards oriented 90 degrees from the orientation of the foam board. Leave a 1/2" gap around the perimeter to allow for expansion. Again, carefully seal all of the joints and edges. If your installation is in a basement, first make sure there is no potential for water leaks. If there are cracks and leaks in the walls or floor, fill and seal cracks with Sikaflex Model # 7116110, Home Depot Internet #300934565 Store SKU #652010 In most locations, moisture also comes through the concrete walls and floor - making the basement feel damp. Apply damp-proofing to the surface. Products like Drylok can provide an important layer of moisture protection. See: Drylok Model # 28615, Home Depot Internet #202610896 Store SKU #1000531519. This product will minimize water vapor diffusion from the soil through the foundation. If there is any potential for water leaks into your basement, install DriCore panels on the floor first. They have a rubber layer on the bottom with channels for water to trickle through. Make sure, of course, that you have a drain and sump pump or drywell for the water to flow to. Seal all of the joints and perimeter of the DriCore panels as noted above. Home Depot carries all of the products mentioned above. I hope this is helpful. Mark

Will this be adequate to use on the backside of Mobile Home skirting? e

Asked by jwilly September 7, 2020
2
Answers

Hello jwilly, to better answer your question we will need some additional information. Please contact 1-800-Get-Pink (438-7465) or email answers.insulation@owenscorning.com. Thank you for your inquiry!

Could this be used to insulate the concrete ceiling of a storm room in a basement? Could you glu...

Asked by Russ September 6, 2020
2
Answers

Hello Russ, to use this on the ceiling of a storm room it would need to be covered by a 15-minute thermal barrier such as 1/2" drywall. The Foamular will act as the vapor retarder and will likely help with condensation on the ceiling. Thank you for your inquiry!

Hi Can I order Non-Scored Foamular 250 boards?

Asked by AR September 5, 2020
2
Answers

Hello AR, to determine is the square edge product is available I would suggest checking with your local Home Depot. However, the scores on the board are less than 1/2" deep and will have minimal impact on overall R-value. Please check your local building codes for Foamular being exposed in a crawl space. Thank you for your inquiry!

FOAMULAR 250 2 in. x 48 in. x 8 ft. R-10 Scored Squared Edge Insulation Sheathing - page 2

Customer Reviews

  • 357 Customer Reviews
  • 4.8 out of 5 stars overall
98% of customers recommended.
Overall Ratings
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Works as designed. Used for a basement
Works as designed. Used for a basement
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Three 2" staggered layers below a -20 freezer,
Three 2" staggered layers below a -20 freezer,
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Affordable and easy to install!
Affordable and easy to install!
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1
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Cut scuttle hole into attic. Cut 3 pcs to opening size. Used latex caulk to bond 3 pieces togethe...
Cut scuttle hole into attic. Cut 3 pcs to opening size. Used latex caulk to bond 3 pieces together. Wanted the same R30 insulation value in the opening after cutting with future access to the area. This worked Great! ( yes I'm adding a cover and trim to the opening ) I have 3 other access areas to the attic and this cover and trim will just be installed with screws and painted.
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Easy to work with and keeps cold out and heat in the winter.
Easy to work with and keeps cold out and heat in the winter.
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3
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Home Depot had the best pricing the description of the product was as listed.
Home Depot had the best pricing the description of the product was as listed.
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We live in a flood zone and this is the best option for insulation after our hurricane flooding. ...
We live in a flood zone and this is the best option for insulation after our hurricane flooding. I know one day it's going to flood again. This option will help speed up the cleaning process. Easy to cut and install.
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2
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I have used this product for many years as a table base for model railroad work. It is easy to c...
I have used this product for many years as a table base for model railroad work. It is easy to cut with a hot wire knife or long thin blade knife. I mount the Foamular to a 1x3 wood frames with foam safe glue. Great for a light weight and portable model railroad layout.
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This insulation was easy to install on my basement walls...
This insulation was easy to install on my basement walls for insulating my basement so I can finish it! Great product!
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I don't like that it's scored
I used this previously to build an insulation box for our whole house fan. I came back a couple of years later to get more to build a box to put over our attic door. Unfortunately, it is now scored every 8 inches to a thickness of about 1" so that it is easy to cut to put between studs. However, the scoring reduces the R value and makes it less useful for my purposes
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