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Overview

Model # 270277 Store SKU # 1000155124

FOAMULAR® NGX Extruded Polystyrene Rigid Insulation, is a moisture-resistant, rigid foam insulation, which can be installed on the interior or exterior of walls, foundation walls and under concrete floor slabs. With a thermal resistance of R-5 per inch of thickness, it can reduce heating and cooling costs and increase the home's comfort. Lightweight, durable and impact-resistant, FOAMULAR® NGX products are easy to handle and install, and made in Canada. Choose FOAMULAR® NGX Rigid Insulation for your next renovation.

  1. Used under residential garage slab (30 psi)
  1. Excellent energy efficiency in the form of a high R-5 per inch; available in a wide choice of sizes, thicknesses and edges
  1. Lightweight, durable and moisture-resistant
  1. Easy to cut, score and install
  1. Only XPS with a limited lifetime warranty that guarantees a minimum 90% of R-value for the life of the product; see warranty for complete details.
  1. GREENGUARD Gold certified; contributes to indoor air quality and certified by Scientific Certification Systems (SCS) to contain a minimum of 20% recycled content. Made with 100% renewable electricity, through power purchase agreements.

Specifications

Dimensions

Assembled Depth (in inches)
24
Assembled Height (in inches)
2
Assembled Weight (in lbs)
4.22
Assembled Width (in inches)
96
Packaged Depth (in inches)
96
Packaged Height (in inches)
2
Packaged Weight (In lbs)
0.13
Packaged Width (in inches)
24

Details

Certified
Country of Origin
CA-Canada
Coverage Area (sq. ft.)
16
Faced or Unfaced
Unfaced
Insulation Wall Size
2 x 6 Walls
Product Length (ft.)
8
R Value
10
Sheathing Type
XPS
Sound Barrier

Warranty / Certifications

If you have questions about the warranty for FOAMULAR NGX insulation, call 1-800-GET PINK.
FOAMULAR NGX C-300 XPS Rigid Foam Insulation Board; 2-inch x 24-inch x 96-inch R-10 SL EdgeOwens Corning FOAMULAR NGX C-300 XPS Rigid Foam Insulation Board; 2-inch x 24-inch x 96-inch R-10 SL EdgeFOAMULAR® NGX Extruded Polystyrene Rigid Insulation, is a moisture-resistant, rigid foam insulation, which can be installed on the interior or exterior of walls, foundation walls and under concrete floor slabs. With a thermal resistance of R-5 per inch of thickness, it can reduce heating and cooling costs and increase the home's comfort. Lightweight, durable and impact-resistant, FOAMULAR® NGX products are easy to handle and install, and made in Canada. Choose FOAMULAR® NGX Rigid Insulation for your next renovation.
Owens Corning
1000155124
FOAMULAR NGX C-300 XPS Rigid Foam Insulation Board; 2-inch x 24-inch x 96-inch R-10 SL Edge is rated 4.7 out of 5 by 187.
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Rated 1 out of 5 by from R Values Details Pay attention to falsely stated R Value on Specification page!!!! Bought 18 sheets of this product. When choosing, I looked at the specification page where the R value is stated as 5. When product was delivered, the R values stated on it is 3. Called customer service, they said it states R 2.5 in the title. But the full title with that bit is not even visible when you browse, at least on a laptop. It still states R 5 under specifications. This is less a product issue and more Home Depot issue--which should become a regulator issue. You cannot describe product differently in two places and then go with the lower specifications because it suites you.
Date published: 2023-05-06
Rated 5 out of 5 by from Think Pink! I have been trying to find Pink Panther wall art for years now, but haven't had any luck finding something nice that is within my price point. Then I found these boards! Wow! It's pink AND it has an image of the Pink Panther on it. I don't know why anyone would go to some art store when they could just creep on down to the Home Depot, buy this attractive hunk of foam, cut out the pink panther using a rusty kitchen knife, and hang it on the ceiling above your bed. This is a great product! I understand that it also has insulating properties, but I have not tried it for this purpose yet.
Date published: 2021-07-04
Rated 5 out of 5 by from Modelling and Science Projects Ideal material for school projects. Carved easily and can be painted . I used it for modelling landscape on my Lionel train set.
Date published: 2021-02-22
Rated 5 out of 5 by from Perfect For Finishing Basement Project to finish my basement... Layed down Platon foundation membrane on the basement cement floor and then put the 1.5" celfort foam board on top of it and also on the foundation walls. Used PL300 to secure them to the wall and floor... and then tuck-taped each seam. This size foam board is perfect if you have existing 2x4's already secured down on the floor that you cannot remove.. It will allow you to to TapCon your sub-floor directly on top of the sub floor and existing 2x4's so that there is a seamless sub-floor right around the enitre basement area.. Then frame ontop of the sub floor to allow a complete water proof barrier..
Date published: 2009-04-19
Rated 5 out of 5 by from Codebord for nonconstruction uses At my company, we use this material for packing high value parts for shipment, and making mockups of 3D composite forms. With a utility knife and a straight edge, you can do a lot.
Date published: 2017-07-31
Rated 5 out of 5 by from Foam insulation This product was s very easy to work with, minimal clean up, very effective.
Date published: 2021-02-11
Rated 5 out of 5 by from Tough Stuff I buried 15 x 8 footers in 2 feet of backfill, all around the house when I installed a weeping tile pipe system. The C300 will deflect rain water away from the foundation wall, plus provide insulation to the foundation wall in winter. None of the pieces cracked or split during installation. Glad I went with the 2 inch thickness for strength and added R valve.
Date published: 2020-12-22
Rated 5 out of 5 by from Great R-value to space ratio R5 per inch. You should definitely check the in-store price. My local HD was price-matching the blue foamboard from a nearby big-box competitor. My only surprise was to open up a 12 pack and find live flies & ladybugs crawling around, given that it's mid-November here in Ontario. It would be nice if these were sealed better and/or not stored outside.
Date published: 2008-11-16
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Would anyone recommend using this product, instead of a piece of wood in my window, when installing my window air conditioner? Will this be strong enough? Thank you for your time and help.

Asked by: MikeyMike
It depends, will the foam board be under pressure? As it is just foam it will not be able to hold an air conditioning in your window. But if your air conditioner is like mine and is screwed in to the frame then you are just looking for something to fill the gap this would work with tucktape around the edge to keep it in place. Just make sure it’s not in contact with the A/C exhaust as it can melt with a lot of heat. 
Answered by: Tiny
Date published: 2022-10-25

What kind of caulk or adhesive will not cause this product to deteriorate or breakdown? I plan to use the rigid foam to fill in the rim joist and sill plate area in basement. I do not want to used spray foam. Thank-you

Asked by: Shortcake
Hello Shortcake, please see link below to our technical bulletin on compatible adhesive for Foamular. https://dcpd6wotaa0mb.cloudfront.net/mdms/dms/EIS/10024851/10024851-Compatible-Adhesives-for-Foamular-and-Foamular-NGX-Techical-Bulletin.pdf?v=1621929051000 Thank you for your inquiry!
Answered by: OwensCorning
Date published: 2023-01-05

Is this product water proof? I'm looking for something to put as a base for my above ground pool .

Asked by: Rosie
Yes, it’s waterproof, but this is very thin and would break or crack with weight on it, so it would leak.
Answered by: Keeps the cold air out
Date published: 2022-10-25

I have a raised ranch home...well above ground water level. Could I place this one inch styrofoam under 5/8 " tongue and groove plywood as a strong base for 4" wide planks of laminate flooring in my basement. Is this strong enough to roll heavy TVs over

Asked by: Michael
I think it woukd be fine as the weight would be spread out over the sheet with the 5/8 covering it. Couldn't seeit doing much to it.
Answered by: Aced
Date published: 2023-10-30

Is it fire rated?

Asked by: Paint job
no, it's polystyrene, it is toxic if burnt
Answered by: robbo
Date published: 2023-11-20

Is this good for soundproofing? i'm planning on putting this on my basment ceiling between joists. My basement is unfinished right now and a bit of sound proofing between the main floor would be ideal. If not, can you suggest a product?

Asked by: AG82
I used this product myself for much the same reason and although it helped I would not say it provided a great deal of improvement.
Answered by: Brandee
Date published: 2023-02-27

Can be used for garage door?

Asked by: Alan
Hello Alan, Owens Corning Foamular products are combustible and must be covered by a 15-minute thermal barrier such as 1/2" drywall. We do not recommend using Foamular to insulate a garage door. Thank you for your inquiry!
Answered by: OwensCorning
Date published: 2021-11-16

I have an unheated garage with a bedroom above it. The garage has a front &rear door. Both are older, wooden doors. I was going to attach this insulation to the inside of the doors to try and minimize the coldness of the floors above during winter??

Asked by: corsini66
Hello Corsini66, Owens Corning Foamular is a combustible product and needs to be covered by a 15-minute thermal barrier. We do not recommend installing this to insulate a garage door. If you are trying to keep the floors above warmer, we suggest insulating between the ceiling/floor joist. Thank you for your inquiry!
Answered by: OwensCorning
Date published: 2021-10-25
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