0748232100029

Owens Corning

Model 45W

Internet #100320352

Store SKU #409926

Store SO SKU #1000203202

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

  • Closed cell rigid foam board, easy to handle, cut and install
  • Compressive strength of 15 psi, R-value of 10
  • Lifetime Limited Warranty for the life of the home

Frequently Bought Together

Product Overview

Choosing The Right Insulation

Faced Insulation

Faced

Face insulation uses kraft paper vapor barrier to control moisture transmission between 
walls and floors 

*Check your local building code for requirements
Unfaced Insulation

Unfaced

Unfaced insulation does not have a vapor barrier; used over existing insulation in the attic, or where moisture control is not needed

Rolls Insulation

Rolls

Continuous rolls are easy to transport and can be cut to length; great for large areas

Batts Insulation

Batts

Come in pre-cut lengths for faster installation and each package contains more square feet than rolls; ideal for framed cavities

Blow-In Insulation

Blow-In Insulation

Installed using blowing machines, best for adding additional insulation in attic

Regional R-Values

Regional R-Values Map

The Department of Energy recommends different insulation
levels based on regional climate zones to increase energy efficiency

Map key with insulation type based on region

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

Info & Guides

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Specifications

Dimensions

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Warranty / Certifications

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Customer Questions & Answers

91 Questions129 Answers

Customer Questions & Answers

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

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This question is from FOAMULAR 150 2 in. x 4 ft. x 8 ft. R-10 Scored Squared Edge Insulation Sheathing
 
4 answers

regular insulation is rated R-30-60, how does this relate for insulation? Am using to insulate a ceiling on a flat roof home.

This question is from FOAMULAR 150 2 in. x 4 ft. x 8 ft. R-10 Scored Squared Edge Insulation Sheathing
Asked by
Lina
Simi Valley, California
February 14, 2013
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Answers (4)

Asked by
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Home Improvement Profile: DIYer
January 12, 2016
Answer: 
For roofing application, use Thermapink, extruded XPS (similar to Foamular)...comes in 1", 1½", 2", 3", 4" thicknesses, R5 per inch. Can use multiple layers to achieve desired R value.
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Asked by
Salt Lake City, UT
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October 30, 2013
Answer: 
This product is rated R-5 per inch of thickness, so you would need 6" of thickness to achieve R-30. However, according to the manufacturer, Foamular 150 is not intended for roofing insulation applications, if that's what you had in mind.
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Asked by
Randy
June 27, 2013
Answer: 
At 2 inches thick, this insulation has an R value of 10. Three layers of it would be an R-30, 6 layers would be an R-60, etc.
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February 19, 2013
Answer: 
Foamular is rated at R-5 per square inch of the product.
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This question is from FOAMULAR 150 2 in. x 4 ft. x 8 ft. R-10 Scored Squared Edge Insulation Sheathing
 
3 answers

is this the styro foam that you put on the outside of a basement cement wall

This question is from FOAMULAR 150 2 in. x 4 ft. x 8 ft. R-10 Scored Squared Edge Insulation Sheathing
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mt pleasant mich
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August 5, 2015
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Asked by
col. hgts, VA
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November 13, 2015
Answer: 
no, type IV, 25 psi compression required by building code below ground. Foamular 250.
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Asked by
Salt Lake City, UT
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August 7, 2015
Answer: 
Yes, XPS works well for this application because it is impervious to water.
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August 7, 2015
Answer: 
Yes, this is the product for insulating basement concrete.
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This question is from FOAMULAR 150 2 in. x 4 ft. x 8 ft. R-10 Scored Squared Edge Insulation Sheathing
 
3 answers

Would this be suitable to insulate a dog house?

This question is from FOAMULAR 150 2 in. x 4 ft. x 8 ft. R-10 Scored Squared Edge Insulation Sheathing
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mississippi
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November 7, 2014
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Asked by
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December 29, 2015
Answer: 
What does "scored" mean? What adhesive should I use to attach it to a horizontal surface?
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December 2, 2014
Answer: 
This is not one of the recommended applications, but it would be possible to use Foamular to insulate your dog house if you wanted. It is typically recommended by residential bldg code that it is covered by a 15 min Thermal Barrier such as drywall or gypsum, but I do not believe there are any restrictions in regards to dog houses. Thank you for your inquiry!
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Asked by
Salt Lake City, UT
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November 9, 2014
Answer: 
There are no building codes governing the construction of dog houses, so why not? But seriously, this would be a good choice. It's lightweight, cuts easily and is impervious to water.
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This question is from FOAMULAR 150 2 in. x 4 ft. x 8 ft. R-10 Scored Squared Edge Insulation Sheathing
 
3 answers

Would the flammability of the Foamular be prohibitive for use on an exterior wall?

This question is from FOAMULAR 150 2 in. x 4 ft. x 8 ft. R-10 Scored Squared Edge Insulation Sheathing
Asked by
Richmond, VA
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February 24, 2014
I am considering this product for use in my bathroom renovation. After reading the other questions and answers, I am curious about whether or not running electric outlets on the exterior wall would also be a problem for using this insulation product.
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Asked by
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December 15, 2015
Answer: 
According to http://www.greatlakeshomeperformance.com/wp-content/uploads/2015/02/ICC-ES-Styrofoam-ESR-2142-Code-Report.pdf the product does NOT need to be covered by drywall.
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February 26, 2014
Answer: 
Foamular 150 is typically used as sheathing on exterior walls. Your local Home Depot can assist you with your project.
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Asked by
Salt Lake City, UT, USA
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February 25, 2014
Answer: 
Insulation is intended to be used on exterior walls. What would be the point otherwise? In any case, flammability shouldn't be a concern as long as the insulation isn't left exposed--that is, it needs to be covered with drywall, tile, etc. that you would certainly be installing in a finished bathroom anyway. Wiring complicates the installation somewhat, because you'll need to cut/carve/notch the Read More
Insulation is intended to be used on exterior walls. What would be the point otherwise? In any case, flammability shouldn't be a concern as long as the insulation isn't left exposed--that is, it needs to be covered with drywall, tile, etc. that you would certainly be installing in a finished bathroom anyway. Wiring complicates the installation somewhat, because you'll need to cut/carve/notch the insulation to accommodate the wiring and junction boxes, but there's no reason this couldn't be done. Any gaps could be filled with batt insulation remnants or, better yet, spray foam. Read Less
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Customer Reviews

Rated 4.8 out of 5 by 12 reviewers.
Rated 5.0 out of 5.0 by Great product for DIY archery targets... Odd, I know, but get one 8'x4' sheet of this and cut it into 24"x16" sections at 2" thick, stack them into a wooden frame and compress with either ratchet straps or some sort of threaded rod on either side. Makes for an excellent 24"x24" faced target capable of handling broadheads for less than half the price of an 18"x18" Block classic target. Even better, when a section starts chunking, just loosen the compression and move a layer up or down. DIY archery target, works a treat, light weight, lasts a while and saves a fair amount of money. Mine has lasted 3 years of minor to moderate broadhead and field point use from a 50lb recurve before needing to have the layers rotated, totally serious. August 7, 2016
Rated 5.0 out of 5.0 by Halloween Tombstones This stuff is great to make tombstones and a lot of other props out of for Halloween. With some research (YouTube, HalloweenForum, HauntForum, GarageOfEvil), time, and patience you can learn and practice techniques to make customized realistic looking props and tombstones cheaper and better looking than you can buy from stores. July 8, 2015
Rated 5.0 out of 5.0 by Great for carving/sculpting Great for carving - the thickness was a bit challenging but it's no issue if you have the right tools. Stands up very well to stress - including falling 30ft off a building - and is light enough to carry around easily, even if the full sheet is somewhat unwieldy. We used this to reconstruct part of the Parthenon frieze and I will definitely be making use of it in future projects. November 21, 2012
Rated 3.0 out of 5.0 by Great product... Wanted to buy this sheathing as a base for model railroading. Excellent for that. Much denser than white foam. These panels are scored at 1/3 width, and 1/2 width. Only problem is the scoring is strangely jagged and at an angle to the face, and does not break clean, even when the scoring is enlarged with a knife. Would cut well with a circular saw, but I needed to cut it just to get it in my station wagon. June 9, 2015
Rated 5.0 out of 5.0 by The Stuff to Use for Basements Although polyiso has slightly better thermal performance, XPS stands up better to moisture. Thus, XPS should be used for below-grade applications such as retrofitting insulation to basement walls (which is what I'm using the product for) due to the moisture contained in the concrete. I used a fine-toothed hand saw to cut the product to size, which worked well, with a minimum of mess. I just wish that Home Depot carried this product in the 1.5" thickness, because I'd also like to retrofit it between the studs of a 2x2 wall... October 30, 2013
Rated 5.0 out of 5.0 by Used as hydronic floor heating underlayment I installed 2" thick Owens-Corning foamular sheets around the perimeter of and under my new pole barn prior to installing hydronic heating tube (PEX). I bought them in 4x8' sheets and they were pre-scored so they could be easily broken into 16" or 24" widths. They were also easy to cut to custom widths using a drywall knife - you only have to score them about 1/2" deep and they break easily along the score line. I also used my sabre saw to cut them using a knife-type blade. The material is light and easy to work with. My only beef would be the price. August 29, 2009
Rated 5.0 out of 5.0 by Works like a charm I used this to make a 3' x 2' insulated box inside a closet to use as a fermentation chiller when fermenting beer. This box combined with 1 gallon of frozen water will hold at 60 degrees F for almost 24 hours. This is with an outside ambient temp of 78 degrees. The foam is light weight and easy to work with. October 4, 2014
Rated 4.0 out of 5.0 by Easy to construct back drops I used these panels to make sets for a local con. The textures lightness and strength was perfect. I added wing panels that stood out at a 45' angel. Project was assembled at site with twelve inch 1 by 1 (also from home depo. The packs were very on expensive) using a hot glue gun. It also was easy to transport and break down. July 22, 2014
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