Internet #100320352

Model #45W

Store SKU #409926

Store SO SKU #1000203202

FOAMULAR 150 2 in. x 4 ft. x 8 ft. R-10 Scored Squared Edge Rigid Foam Board 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 & 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 4 ft. x 8 ft.
  • Application: Exterior sheathing & interior basement walls
  • 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 shop Loctite foamboard adhesive
  • 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.
  • When using FOAMULAR or any low perm insulation, always verify the moisture vapor flow and dew point characteristics of the wall system.  Please check your local building codes for vapor retarder/barrier information.
  • 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, acrylic or latex based 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

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Compare Similar Foam Board Insulation

24 in. x 1 in. x 48 in. R5 Radiant Acoustic Insulation Kit - STC 19 (5-Piece)0.625 in. x 48 in. x 24 in. 72 sq. ft. R-3 Graphite Radiant Barrier Wall Insulation Kit (9-Sheets/Kit)19 in. x 150 ft. Sticky Mesh Heavy Duty
current product
FOAMULAR 150 2 in. x 4 ft. x 8 ft. R-10 Scored Squared Edge Rigid Foam Board Insulation Sheathing
BrandSilveRboardSilveRboardSTYRO IndustriesOwens Corning
Name24 in. x 1 in. x 48 in. R5 Radiant Acoustic Insulation Kit - STC 19 (5-Piece)0.625 in. x 48 in. x 24 in. 72 sq. ft. R-3 Graphite Radiant Barrier Wall Insulation Kit (9-Sheets/Kit)19 in. x 150 ft. Sticky Mesh Heavy DutyFOAMULAR 150 2 in. x 4 ft. x 8 ft. R-10 Scored Squared Edge Rigid Foam Board Insulation Sheathing
Price
$2651
/package
$5198
$8135
Ratings
(193)
(9)
(47)
(148)
Product Thickness (in.)1 in.625 in0.0752 in
Insulation Location2x4 Wall,2x6 Wall,2x8 Wall,Attic,Basement,Ceiling Insulation,Exterior Sheathing,Garage,Metal Building,Re-Siding2x4 Wall,2x6 Wall,2x8 Wall,Attic,Basement,Ceiling Insulation,Crawlspace,Exterior Sheathing,Garage,Metal Building,Re-SidingBasement,Ceiling Insulation,Exterior Sheathing,Exterior Wall,Exterior Wall Foundation,Interior Ceiling,Interior Wall,Wood SidingExterior Sheathing
Insulation R-ValueR5R3.0 R10
Sheathing TypeEPSEPSEPSXPS
Insulation FeaturesFormaldehyde Free,Vapor RetardantFormaldehyde Free,Moisture Retardant,Mold Resistant,Soundproofing Insulation,Vapor RetardantMold ResistantFormaldehyde Free
Compatible Install SurfaceCement,Concrete,Existing Drywall,Existing Insulation,PlywoodCement,Concrete,Existing Drywall,Existing Insulation,PlywoodCement,Concrete,Existing Drywall,Existing Insulation,Fiberglass,Plywood,Wood
Product Length (ft.)10 ft18 ft1508 ft
Product Width (in.)48 in48 in1948 in
Faced or UnfacedFacedFacedUnfacedUnfaced
Interior/ExteriorInterior/ExteriorInterior/ExteriorInterior/ExteriorExterior
View ProductView 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

Faced or Unfaced
Unfaced
Insulation Features
Formaldehyde Free
Insulation Location
Exterior Sheathing
Insulation R-Value
R10
Insulation Type
Foam Board Insulation
Interior/Exterior
Exterior
Number of Pieces
1
Product Weight (lb.)
7.87 lb
Sheathing Size
8 ft. x 2 in. x 48 in.
Sheathing Type
XPS

Warranty / Certifications

Warranty Information
Limited Lifetime

Questions & Answers

193Questions16Answers

Can this foam board be used in a flue chase above a gas burning fireplace? Can it touch the flue or must it be 2" away?

Asked by Bob September 20, 2020
2
Answers

Hello Bob, Owens Corning Foamular has a service temperature of 165° F and should not be in contact with the flue. Thank you for your inquiry!

Is this foam anti-static?

Asked by HA August 6, 2020
1
Answer

Hello HA, Owens Corning does not intentionally add any anti-static material to our Foamular products. Thank you for your inquiry!

Can i get this in non scored 4x8 sheets?

Asked by Ohio3500 July 27, 2020
1
Answer

Hello Ohio3500, Owens Corning does manufacture a Foamular 150 Board 2" x 4' x 8' without scoring. You would want to check with your local Home Depot for product availability. Thank you for your inquiry!

is owens corning foam board safe to breath ….gas off ?

Asked by someguy July 23, 2020
1
Answer

Hello someguy, Owens Corning Foamular Products are Formaldehyde free and GreenGuard Certified for low chemical emissions. Thank you for your inquiry!

I installed the r5 foamular in cathedral ceiling reverse marking towards outside does it make any difference?

Asked by Gerry July 20, 2020
2
Answers

Hello Gerry, this will not impact the performance of the Foamular. Thank you for your inquiry!

Does it make any difference if I installed it reverse

Asked by Gerry July 20, 2020
2
Answers

Hello Gerry, this will not impact the performance of the Foamular. Thank you for your inquiry!

Is it paintable?

Asked by Josh June 19, 2020
1
Answer

Hello Josh, oil-based and latex paints can be used with Foamular products. Thank you for your inquiry!

Can it be used on building bird house ? Or dog house?

Asked by John May 5, 2020
2
Answers

Not a birdhouse, way too thick, but I could see using it to insulate a dog house. You would still need a suitable exterior structure.

s silverboard 1x 2x4 better accustics on inside condo walls than 2x4x8 styrofoam

Asked by Deborah May 1, 2020
3
Answers

Hello Deborah, fiberglass batts would be your best option for reducing sound transfer between rooms. Thank you for your inquiry!

Whats the difference between 150 and 250?

Asked by Kevin April 26, 2020
1
Answer

Hello Kevin, Foamular 150 has a compression strength of 15 PSI and 250 has a compression strength of 25 PSI. Thank you for your inquiry!

FOAMULAR 150 2 in. x 4 ft. x 8 ft. R-10 Scored Squared Edge Rigid Foam Board Insulation Sheathing - page 2

Customer Reviews

  • 148 Customer Reviews
  • 4.8 out of 5 stars overall
100% of customers recommended.
Overall Ratings
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I have used this insulation on several projects
This 2 inch foam insulation has been used on several projects in the last 10 years. Last year I built a 6 ft by 9 ft temporary RV to use on a job, now I use it as a storage shed. This year I am building a 5 ft by 12 ft trailer and I'm using it again because it worded so well. Sadly the price has increased by about 33% from $32 to around $39 but still worth it to me.
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I've used this product for several applications. In this case I have a room under our front porc...
I've used this product for several applications. In this case I have a room under our front porch, which is mostly underground; I want to turn it into a wine cellar. Doing this will help control the temperature enough to store wire, I hope. It won't be anything fancy, but I figured using this rigid insulation will not take up as much space & I don't need to build any kind of stud wall to install it. I am gluing it to the walls with a construction adhesive specifically for foam insulation. It does need to be clamped in place in order to the glue to hold the foam as I intended. To cut the product I simply score it with a utility knife on both sides & snap it like dry wall. I routed out a channel for wiring, which worked well.
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Very easy to install ... durable (walked on it after and my 270 husband did not dent it).
Very easy to install ... durable (walked on it after and my 270 husband did not dent it).
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Nice to work with. Seems to cut cleaner with a utility knife than the Dow Styrofoam. It also seem...
Nice to work with. Seems to cut cleaner with a utility knife than the Dow Styrofoam. It also seems to a little denser and less prone to damage.
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Excellent product that's easy to work with.
Excellent product that's easy to work with.
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We installed Foamular 150 2 inches 4x8 ft into our house's attic. It seems that the space covered...
We installed Foamular 150 2 inches 4x8 ft into our house's attic. It seems that the space covered be immediately warmer and look better. Attached is the photo of our action using the product. ZH13
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After researching the net for insulation not only for a crawl space and a basement I felt this wo...
After researching the net for insulation not only for a crawl space and a basement I felt this would be the best product for the application. This was easy cutting this Formular 150 R-10 2" insulation in any dimension via a Olfa knife, circular saw and or a table saw. I completed most of my cuts prior to installation and installation was much easier and time efficient. I have already completed the installation 11/23/18 on the crawl space (encapsulated the crawl) and have already observed a savings in heating costs by 18% and the floors are much warmer by 8 degrees. I no longer smell the dank crawl space and the interior environment of the house has improved 100%. I am not encapsulating the basement; however, I will use this on all of the walls and fascia boards to effectively do the same as the crawl. I have calculated the return on investment at approximately 18 to 24 months. I would highly recommend this product and it definitely met my expectations.
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Easy to work with.
Easy to work with.
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I am re-insulating my attic by adding R-30 un-faced rolls perpendicular to the ceiling joists. I ...
I am re-insulating my attic by adding R-30 un-faced rolls perpendicular to the ceiling joists. I used the 2" foam to build an attic stairway insulated cover. I built a frame with hinges to attach it too - if I ever build another one, I may just glue the foam together w/o the frame to see if it will work by itself.
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I'm so happy to see thicker versions of this product at my Home Depot! I use this stuff to air s...
I'm so happy to see thicker versions of this product at my Home Depot! I use this stuff to air seal walls and ceiling spots. Cut to size and then seal in w/ my Great Stuff PRO gun. On brick walls I fill the void between brick and studs with ROXUL safe n sound and then seal the stud void w/ foam. This gives me a fire block, fills the void eliminating a home for bugs/critters, makes wall air/water tight. Also if you expose studs go ahead and treat them w/ borate to kill any termites that try to nibble on your framing..just paint the bottom 2-3ft w/ it. This 2 inch variant of the Foamular translates to less cutting for me. It takes 3 inches to fill a 2x4 stud wall, I wish they sold the 3" thickness then I'd only have to cut one time. This does does dull utility knives quickly just a heads up buy an extra pack of blades. Attached picture shows this product along with the other foam that has a radiant barrier. I use 2 layers of foamular along w/ the radiant barrier version in most areas.
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