SKU: 4314077904

Owens Corning R-15 (40 PSI) FOAMULAR NGX 400 Extruded Polystyrene Foam Board Insulation, 3 in x 4 ft x 8 ft, Square Edge

Sale price$172.35 Regular price$191.50
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Owens Corning R-15 (40 PSI) FOAMULAR NGX 400 Extruded Polystyrene Foam Board Insulation, 3 in x 4 ft x 8 ft, Square EdgeFOAMULAR NGX 400 R 15 XPS Foam Board, 3 in x 4 ft x 8 ft High performance extruded polystyrene (XPS) foam board delivering R 15 thermal resistance in a 3 inch panel. Engineered for moisture resistance and durability with 40 PSI compressive strength, ideal for walls, sheathing, and commercial applications. Key Features: High R Value: R 5 per inch delivers R 15 in a 3 inch panel for energy efficiency Moisture Resistant: Low water absorption helps retain

FOAMULAR NGX 400 R-15 XPS Foam Board, 3 in x 4 ft x 8 ft

High-performance extruded polystyrene (XPS) foam board delivering R-15 thermal resistance in a 3-inch panel. Engineered for moisture resistance and durability with 40 PSI compressive strength, ideal for walls, sheathing, and commercial applications.


Key Features:

  • High R-Value: R-5 per inch delivers R-15 in a 3-inch panel for energy efficiency
  • Moisture Resistant: Low water absorption helps retain R-value in damp conditions
  • Strong & Lightweight: 40 PSI compressive strength; easy to cut and install
  • Versatile Use: Suitable for exterior and interior foundation walls, exterior sheathing, cavity walls, and commercial applications
  • Sustainable Blowing Agent: NGX technology reduces global warming potential vs. legacy XPS

Specifications Table:

Specification Details
Series Name FOAMULAR NGX F-400
Actual Length (Feet) 8
Actual Thickness (Inches) 3
Actual Width (Feet) 4
Coverage Area (Sq. Feet) 32
Compressive Strength 40 PSI
Faced/Unfaced Unfaced
Insulation Type Polystyrene (XPS)
Maximum R-Value 15
R-Value per Inch 5
Mold Resistant Yes
Water Resistant Yes
Fire Resistant No
Sound Barrier No
Use Location Outdoor
For Use in Walls Yes
For Use on Wood Yes
Formaldehyde Free Yes
ENERGY STAR Certified Yes
GREENGUARD Gold Certified Yes
Warranty Limited lifetime
Package Quantity 1
Package Weight (lbs.) 15.1

Frequently Asked Questions (FAQ):

Q: Can this insulation be used on exterior sheathing?
A: Yes, it is suitable for exterior sheathing, foundation walls, cavity walls, and commercial applications.


Q: Is the board faced or unfaced?
A: Unfaced XPS foam board.


Q: What is the R-value per inch?
A: R-5 per inch; the 3-inch panel provides R-15.


Q: Does it resist mold and mildew?
A: Yes, it is mold/mildew resistant with excellent moisture resistance.


Q: Is special tooling required to cut it?
A: No, panels are lightweight and easy to cut with standard tools.


Sculptural Warmth Meets Industrial Strength

This sleek pink board brings modern performance to the envelope of your home, streamlining thermal comfort with a polished, architectural presence. The squared edges and 3-inch profile create crisp lines that layer beautifully behind cladding, supporting a clean, tailored aesthetic. Style it as continuous exterior insulation to elevate energy efficiency and reduce thermal bridging—smart luxury you can feel. A refined essential for resilient, high-design living.


Upgrade your envelope with FOAMULAR NGX 400 and lock in R-15 performance—add to cart today.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 4314077904

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4.4 ★★★★★
Based on 17 reviews
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Verified Purchase
Susan Mather Barone
Port Orchard, US
★★★★★ 5
Three froth/blend options, rechargeable, comes with container
Color: Rechargeable with Storage Box - Silver, Color: Rechargeable with Storage Box - Silver
I watch a gentleman online who always talks about how in his 40 years he didn’t know x, y, z, and ends with “ain’t no way.” He made this 3-ingredient — 4 with ice— iced coffee, and used a handheld frother, so after shopping for ingredients, I went in search of a frother. What I liked about this one is that it’s not battery operated, but instead is rechargeable. It comes with three attachment, one of which I can use for cake batter, whipping up eggs, making homemade whipped cream, and also sauces and gravy. It also has a case so I am storing it with my coffee paraphernalia. It has three settings and I used the high setting. As you can see it really froths up the ingredients. I’m very pleased with my purchase and thought about all the times I need a slurry of water and cornstarch to thicken soups and stews. I don’t know the charge life yet, but so far, so good. What you see in the cup is 2 tablespoons of sweetened condensed milk, 3 teaspoons of instant espresso, and 2 ounces of water. Then you add the ice and your creamer, half-and-half, or barista lover’s oat milk, and you’re done. Not too bad, as my grandpa used to say.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
N
Verified Purchase
Nancy Byrd
Natrona Heights, US
★★★★★ 5
Great product
Color: Rechargeable with Storage Box - Black
It’s great! Very powerful, even on low speed. Mixes fiber, and powdered mix-ins very well as well as frothing milk. Nice sturdy little case to keep the components in. Stays charged for a long time.
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Reviewed in the United States on June 5, 2026
B
Verified Purchase
Bio Grl
Battle Creek, US
★★★★★ 5
Easy to use, perfect small mixer for mornings
Color: Rechargeable with Storage Stand and Box - Black
Comes charged and charges quickly when needed, love the stand and case for the extra attachments, easy to use and clean
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Reviewed in the United States on May 27, 2026
K
Verified Purchase
Kate
Massapequa, US
★★★★★ 5
Best Hand-Held Frother EVER
Color: Rechargeable with Storage Stand and Box - Black
I have had many hand-held frothers over the years; hand-held as well as counter top. None of them have really given me the froth that I want which is dense foam to the point that it almost forms "peaks" and needs to be spooned into my coffee. Additionally, the one that I always went back to (hand-held) only lasted for 3-6 months at best before breaking and sometimes it lasted only a few weeks. Additionally, it drained batteries to the point they needed to be replaced every 2-3 weeks. The Circle Joy DOES make thick, dense froth (I use very cold skim milk on the high speed), has 3 speeds and is rechargeable so no more battery issues. Once I froth the milk, I pop it in the microwave for 40 seconds or so to heat/warm it up. It also comes with an attachment for beating eggs as well as an attachment for stirring in protein powders. I don't need the egg beater and I use the low speed to mix in chocolate collagen powder. I just got this frother so reliability is yet to be proven but I figure at $20.00 even if it needs to be replaced every six months ... it is still a winner.
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Reviewed in the United States on May 8, 2026
L
Verified Purchase
Lilly
San Leandro, US
★★★★★ 4
Works well, worth buying.
Color: Rechargeable with Storage Stand and Box - Black
Works really well. I wish the attachments were easier to get off without feeling like you are going to break them. I use a butter knife to pry it off carefully. I like having the case too, it works well if you need to travel with it.
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Reviewed in the United States on May 31, 2026

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