Ratings & Reviews for Owens Corning FOAMULAR NGX F-250 R- 10 , 2-in x 4-ft x 8-ft Unfaced Extruded polystyrene Board Insulation
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise the foam board for exceptional ease of cutting with basic tools like utility knives and saws, producing clean, precise results. Reviewers consistently report excellent insulation performance in walls, ceilings, trailers, and garage doors, with accurate R-values and effective heat and noise reduction. Many appreciate its lightweight durability, ability to support significant weight, and versatility—it's sandable, paintable, and drillable for crafts, props, and custom projects. A few note fragility if bent or mishandled during transport, though most consider these minor concerns. Overall, customers strongly recommend it for both beginners and experienced DIYers.
Customer review summary generated by AI, including incentivized reviews.The employee was rude
Would Not RecommendThe product itself was fine, but the customer service experience was extremely disappointing. When I arrived for pickup, a young employee named Adrian brought the product out to my SUV. Unfortunately, it would not fit inside my car as it was. I asked whether he could suggest a solution, perhaps providing some string or allowing me to use a utility knife to make the sheets fit. Rather than offering any assistance or trying to find a solution, he seemed bothered that I was asking him to make any a...
From FOAMULAR NGX Sheathing R- 3 , 0.5-in x 4-ft x 8-ft Unfaced Polystyrene Board Insulation
Great insulation choice
Would RecommendThese worked great for what I needed, forming an air and moisture seal in a shed ceiling.
Verified Purchaser
Works as advertised.
If you were expecting it to be anything other than what it is, don't. It's foam board, it insulates.
Verified Purchaser
Excellent
Would RecommendWe just bought this. Excellent product. Lowe’s is our go to store for all our home needs.
Verified Purchaser
Expensive, but good for what it's for
Would RecommendFrom FOAMULAR NGX F-150 R- 5 , 1-in x 4-ft x 8-ft Unfaced Polystyrene Board Insulation Verified Purchaser
Ease of use and versatile
Score lines make this easy to break in place, and it also cuts readily with a knife. Stays rigid, and is not absorbent. I cover it with a sheet (stapled in back) and mount it like a cork board, amd also cut it into holiday decorations
From FOAMULAR NGX F-150 R- 5 , 1-in x 4-ft x 8-ft Unfaced Polystyrene Board Insulation Verified Purchaser
Expensive, but worth it.
Would RecommendThis stuff is incredible for its rigidity and insulating. It is very expensive (what isn't nowadays, I get it) so make sure to measure twice and cut once or else you make a costly mistake!
Verified Purchaser
Perfect thing
Just what I needed to complete a project.
From FOAMULAR NGX F-150 R- 5 , 1-in x 4-ft x 8-ft Unfaced Polystyrene Board Insulation Verified Purchaser
Yard art/photo backdrop
Would RecommendI bought this to paint & make yard art. It's been very durable during the creating phase & I look forward to seeing how long it lasts in the elements (in my yard).
From FOAMULAR NGX F-150 R- 5 , 1-in x 4-ft x 8-ft Unfaced Polystyrene Board Insulation Verified Purchaser
Great futures
Would RecommendGreat product in best place to buy materials I am so happy to buy in Lowes
From FOAMULAR NGX F-150 R- 5 , 1-in x 4-ft x 8-ft Unfaced Polystyrene Board Insulation Verified Purchaser
I wish it came in a... more neutral color!
There are some YouTube videos about using this foam board to make speakers. I'm going to try it. I'll try to remember to update later.
From FOAMULAR NGX F-150 R- 5 , 1-in x 4-ft x 8-ft Unfaced Polystyrene Board Insulation Verified Purchaser
FOAMULAR NGX F-150 R- 5 , 1-in x 4-ft x 8-ft
Would RecommendI bought the insulation to insulate two garage door during the hot summer in Tucson, the FOAMULAR NGX F-150 R- 5 worked great!
From FOAMULAR NGX F-150 R- 5 , 1-in x 4-ft x 8-ft Unfaced Polystyrene Board Insulation Verified Purchaser