Model # 20WE

Internet #207179253

Store SKU #1001965217

Owens Corning FOAMULAR 150 1 in. x 4 ft. x 8 ft. R-5 Scored Square Edge Rigid Foam Board Insulation Sheathing
0748232100654

Owens Corning

FOAMULAR 150 1 in. x 4 ft. x 8 ft. R-5 Scored Square Edge Rigid Foam Board Insulation Sheathing

  • Saves energy and resists moisuture with limited lifetime warranty
  • Scored to easily snap into smaller boards for best fit
  • Closed cell XPS foam panel can be layered for more cost savings
$ 19 55
Buy 48 or more  $15.64  
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Frequently Bought Together

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Product Overview

  • Saves energy and resists moisuture with limited lifetime warranty
  • Scored to easily snap into smaller boards for best fit
  • 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 - choose the strength you need, from 15 to 60 PSI and exceptional moisture resistance. Products provide superior insulating properties; R-value (5- in. of product thickness). 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. Owens Corning provides home builders and home buyers with a number of insulation solutions to meet their needs.
  • Closed cell product is equal to moisture resistance
  • Lifetime limited warranty
  • Wide choice of sizes, thicknesses and edges
  • Retains R-value even after exposure to moisture and freeze thaw cycling



Product Overview

  • Saves energy and resists moisuture with limited lifetime warranty
  • Scored to easily snap into smaller boards for best fit
  • Closed cell XPS foam panel can be layered for more cost savings
Model #: 20WE
Sku #: 1001965217
Internet #: 207179253

FOAMULAR Extruded Polystyrene (XPS) Rigid Foam Insulation offers a comprehensive line of products - choose the strength you need, from 15 to 60 PSI and exceptional moisture resistance. Products provide superior insulating properties; R-value (5- in. of product thickness). 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. Owens Corning provides home builders and home buyers with a number of insulation solutions to meet their needs.

  • Closed cell product is equal to moisture resistance
  • Lifetime limited warranty
  • Wide choice of sizes, thicknesses and edges
  • Retains R-value even after exposure to moisture and freeze thaw cycling



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Name 1 in. x 4 ft. x 8 ft. R-3.85 Insulating Sheathing FOAMULAR 150 1 in. x 4 ft. x 8 ft. R-5 Scored Square Edge Rigid Foam Board Insulation Sheathing FOAMULAR 150 1-1/2 in. x 4 ft. x 8 ft. R-7.5 Scored Squared Edge Rigid Foam Board Insulation Sheathing FOAMULAR 250 2 in. x 48 in. x 8 ft. R-10 Scored Squared Edge Insulation Sheathing
Brand R-Tech Owens Corning Owens Corning Owens Corning
Ratings (106) (143) (95) (178)
Sheathing Type EPS XPS XPS XPS
Insulation Location 2x4 Walls,2x6 Walls,Attics,Basements,Crawlspaces,Exterior Sheathing,Exterior Wall Foundation,Garage,Under Slab 2x4 Walls,2x6 Walls,Exterior Sheathing Exterior Wall Foundation Exterior Sheathing,Exterior Wall Foundation,Under Slab
Product Width (in.) 48 in 48 in 48 in 48 in
Product Length (ft.) 8 ft 8 ft 8 ft 8 ft
Faced or Unfaced Faced Unfaced Unfaced Unfaced
Product Thickness (in.) 1 in 1 in 1.5 in 2 in
View Product View Product View Product View Product

Specifications

Dimensions

Coverage Area (sq. ft.)
32 ft²
Product Length (ft.)
8 ft
Product Thickness (in.)
1 in
Product Width (in.)
48 in

Details

Faced or Unfaced
Unfaced
Insulation Features
Formaldehyde Free,Vapor Retardant
Insulation Location
2x4 Walls,2x6 Walls,Exterior Sheathing
Insulation R-Value
R5
Insulation Type
Foam Board Insulation
Interior/Exterior
Interior/Exterior
Product Weight (lb.)
0.131lb
Sheathing Type
XPS

Warranty / Certifications

Warranty Information
Limited Lifetime

Specifications

Dimensions

Coverage Area (sq. ft.)
32 ft²
Product Length (ft.)
8 ft
Product Thickness (in.)
1 in
Product Width (in.)
48 in

Details

Faced or Unfaced
Unfaced
Insulation Features
Formaldehyde Free,Vapor Retardant
Insulation Location
2x4 Walls,2x6 Walls,Exterior Sheathing
Insulation R-Value
R5
Insulation Type
Foam Board Insulation
Interior/Exterior
Interior/Exterior
Product Weight (lb.)
0.131lb
Sheathing Type
XPS

Warranty / Certifications

Warranty Information
Limited Lifetime

Questions & Answers

Would this work to insulate a garage slab floor before installing a subfloor and hardwood on top?...

Would this work to insulate a garage slab floor before installing a subfloor and hardwood on top? I want to put down a 6mil vapor barrier, then a 1" layer of Foamular with 1/8" spacing and taped with 3/4" plywood glued to the top then hardwood floors over that. Is this the correct product for that application? If not what would you recommend?
Asked by: James
Yes, this product can be used for that application.
Answered by: CommunityAnswer
Date published: 2018-11-12

will Home Depot cut the item in pieces?

will Home Depot cut the item in pieces?
Asked by: JohnDoe
We know it's easy to cut, but I assume you are asking because you can't transport something 4'x8'. I have had wood, thin sheet plastic, plastic pipe, metal pipe and trim cut because it would not fit in my sedan. YES they cut everything.
Answered by: VinnyA
Date published: 2018-09-30

can this board be painted or at least primed to hide the color?

can this board be painted or at least primed to hide the color?
Asked by: Wayne
yes i paint it with latex paint on my train layout with house paint. it covers nicely
Answered by: adam
Date published: 2018-11-12

Can this be used to insulate the ceiling of a wood shed, in between roof rafters?

I have a 12x12 wood shed and would like to insulate the ceiling. The shed walls are already insulated. If I am able to insulate the ceiling with this product, how can I attach this product to the roof/rafters?
Asked by: bbqshrimp
Yes. They have slits down the middle for an easy break if you so desire. It's a 48" piece, so it breaks at 24" and another at 12". Be aware though, that between 16" rafters is 14.5", so you may need to use a straight edge to score and then break it.
Answered by: TommyDIY
Date published: 2018-09-06
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Customer Reviews

FOAMULAR 150 1 in. x 4 ft. x 8 ft. R-5 Scored Square Edge Rigid Foam Board Insulation Sheathing is rated 4.7 out of 5 by 143.
Rated 4 out of 5 by from Easy to use, easy to break into narrower sheets to get into tight crawlspaces and easy to mount t... Easy to use, easy to break into narrower sheets to get into tight crawlspaces and easy to mount to a foundation wall (my use case). My only concern is that this isn't 1 inch thick, it's closer to 0.7-0.8" so you're losing 20-25% of the claimed R value right off the top. If you consider it an R-4, instead of R-5, sheet then it's probably fine.
Date published: 2019-01-22
Rated 5 out of 5 by from I slid Foamular 150 between the studs and behind the existing 2x4 walls in my basement and adhere... I slid Foamular 150 between the studs and behind the existing 2x4 walls in my basement and adhered it to the concrete basement walls using Gorilla construction adhesive (only one I saw in the store specifically rated for both foam and concrete), and stuffed pieces of Roxul mineral wool between the studs and the Foamular to hold it in place until the adhesive dried, then filled the 1/2"-3/4" gaps between the Foamular slabs with Great Stuff Pro Gaps and Cracks. The Foamular 150 was flexible enough to slide in between the studs without breaking, and in combination with Roxul R-15 mineral wool between the studs supposedly gives me an effective R-value exceeding Washington State's R-21 requirement and a highly moisture-resistant assembly. Great for a 2x4-framed basement and a LOT cheaper than spray-foam. My family is REALLY happy with this insulation scheme, in combo with insulating the rim joists in our basement with Foamular-250 that is edge-sealed to the framing with Great Stuff Pro Gaps and Cracks!!!!
Date published: 2018-10-04
Rated 5 out of 5 by from We used the product as a light weight base for our n-guage model train set. It is easy to shape ... We used the product as a light weight base for our n-guage model train set. It is easy to shape and accepts paint and glue well.
Date published: 2018-12-04
Rated 5 out of 5 by from The 4 x 8 sheets of Styrofoam insulation was easy... The 4 x 8 sheets of Styrofoam insulation was easy to install on my basement wall
Date published: 2019-01-01
Rated 5 out of 5 by from It's just a temporary fix but it was a great one. Very simple but effective. We have a French d... It's just a temporary fix but it was a great one. Very simple but effective. We have a French door in our bedroom that has rotted wood that we will have to replace the entire door window combination but simply cannot afford to do so yet. It lets in cold air so much so you can feel the draft. Two sheets of the OC Foamular 150 and problem fixed albeit temporarily.
Date published: 2019-02-05
Rated 5 out of 5 by from I used this product as a vapor barrier and first layer of insulation on inside of my in ground ba... I used this product as a vapor barrier and first layer of insulation on inside of my in ground basement walls. Product is lightweight and easy to use, cutting and shaping with a Stanley knife, then securing to the wall with foam board adhesive. Plan to use 1 1/2 or 2 inch versions for inside of my out of ground basement walls.
Date published: 2019-01-22
Rated 5 out of 5 by from I purchased one sheet to make a warm, outdoor cat house for a stray cat that's been near my home.... I purchased one sheet to make a warm, outdoor cat house for a stray cat that's been near my home. I found the instructions on an 'alley cat' site and this form board worked perfectly. It was easy to score and cut ( except for cutting the circular openings). The cat house is quite toasty!! Thank you.
Date published: 2019-01-14
Rated 5 out of 5 by from I used these sheets to build foam blocks as a Christmas present. I cut them on my table saw at a ... I used these sheets to build foam blocks as a Christmas present. I cut them on my table saw at a 45 degree angle. They cut very smoothly and the end product was loads of fun on Christmas day and New Year's Eve. I glued the pieces with Gorilla glue and taped them with metal heat duct tape.
Date published: 2019-01-03
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