SKU: 74202838056

Owens Corning FOAMULAR 250 R-4 XPS Foam Board Insulation, 3/4 in. x 4 ft. x 8 ft., Tongue & Groove Edge (25 psi)

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Description

Owens Corning FOAMULAR 250 R-4 XPS Foam Board Insulation, 3/4 in. x 4 ft. x 8 ft., Tongue & Groove Edge (25 psi)FOAMULAR 250 R 4 XPS Tongue & Groove Foam Board, 3 4 in. x 4 ft. x 8 ft. Rigid XPS foam board insulation engineered for exterior sheathing and tough jobsite conditions. The FOAMULAR 250 delivers 25 psi compressive strength, moisture resistance, and easy score and snap installation with tongue & groove edges. Key Features: Durable XPS Board: 25 psi compressive strength for exterior sheathing and heavy duty use Energy Efficiency: R 4 thermal resistance

FOAMULAR 250 R-4 XPS Tongue & Groove Foam Board, 3/4 in. x 4 ft. x 8 ft.

Rigid XPS foam board insulation engineered for exterior sheathing and tough jobsite conditions. The FOAMULAR 250 delivers 25 psi compressive strength, moisture resistance, and easy score-and-snap installation with tongue & groove edges.


Key Features:

  • Durable XPS Board: 25 psi compressive strength for exterior sheathing and heavy-duty use
  • Energy Efficiency: R-4 thermal resistance in a 3/4 in. profile helps reduce heat loss
  • Moisture Resistant: Retains R-value even after exposure to water; GREENGUARD certified for low emissions
  • Easy to Work With: Lightweight, scores and snaps cleanly—no special tools needed
  • Tongue & Groove Edge: Panels interlock for a tight fit and reduced air gaps

Specifications Table:

Specification Details
Insulation Type Foam Board Insulation (XPS)
Compressive Strength 25 psi (FOAMULAR 250)
Insulation R-Value R-4
Thickness 0.75 in (3/4 in.)
Width 48 in (4 ft)
Length 8 ft
Edge Profile Tongue & Groove
Faced or Unfaced Unfaced
Compatible Install Surface Concrete, Wood
Interior/Exterior Exterior
Coverage Area 32 sq ft per board
Number of Pieces 1
Pack Size 1
Product Weight 3.9 lb
Sheathing Type XPS
Warranty Limited Lifetime
Features Formaldehyde Free; Moisture resistant; GREENGUARD Certified; Contains minimum 20% recycled content (SCS certified)

Frequently Asked Questions (FAQ):

Q: Can this board be used on concrete or wood surfaces?
A: Yes—compatible with concrete and wood install surfaces.


Q: Is the insulation faced?
A: No, it is unfaced XPS foam board.


Q: What are the panel dimensions and coverage?
A: Each panel is 3/4 in. thick, 4 ft. wide, and 8 ft. long, covering 32 sq. ft.


Q: What is the R-value of this thickness?
A: R-4 for the 3/4 in. thickness.


Q: Does it carry a warranty?
A: Yes, Limited Lifetime warranty; see manufacturer details.


Sleek, Seamless Insulation with Serious Performance

FOAMULAR 250’s crisp pink panels create a clean, continuous thermal envelope that elevates any build from the bones up. The tongue-and-groove edge is a standout, locking boards together for a polished, gap-free plane. Use it behind siding or stucco to sharpen lines and boost comfort without bulk. It’s a quiet essential for luxurious, energy-savvy living.


Upgrade your envelope with FOAMULAR 250 R-4 XPS—order today for a tighter, more efficient build.

Warranty

Installation

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: 74202838056

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M
Fort Morgan, US
★★★★★ 5
10/10
I really love this moisturizer, I started using a retinal and since i usually dont ease into it, my face does get dry and flaky. I was using a different one and it would work for a little while then i would feel dry a while after. Thayers actually feels like it kept my face moisturized even the next morning. It took a couple days to feel it best because my face was already dry from the retinal, but after once my skin soaked it all in it felt great. Its thin, soft and light, not heavy. No scent other than the normal unscented lotion smell. I use it day and night. 14 dollars was questionable, but its so worth it.
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Reviewed in the United States on March 12, 2026
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MsSmash
Alexandria, US
★★★★★ 5
Buy but save some for me!
Moisturizing and light weight not greasy!
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Reviewed in the United States on May 30, 2026
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Dj
West Palm Beach, US
★★★★★ 5
I will never stop using this product!
I can't say enough about this product. I have been using it for years. I do not like heavy creams or the feeling of it on my skin. This is perfect for me. It's lightweight and very hydrating. I use day and night. I technically use it twice, I use it as my moisturizer then after my sunscreen I will mix a small amount of it into my foundation....to thin it out a bit. It leaves my skin glowing. I LOVE Thayers products. FYI: I have mature, sensitive, dry skin.
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Reviewed in the United States on May 8, 2026
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Taja Dockery
Cuba, US
★★★★★ 5
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After the second day I bought another bottle. Just checked out as a matter of fact. Usually, even with my 3 separate moisturizing steps at night, my skin will have lost hydration the next morning. Even with a final layer of byoma oil it would feel like it pretty much evaporated out of my skin overnight. Idk what magic is in this stuff but I woke up today and it felt like I had JUST finished my nighttime skin care. Excellent under makeup..hell makes makeup look better. Worth every single penny. Note: It is my experience that this tingles my skin a little bit. It's mild but it's there. The ingredients don't seem to contain anything that my skin would be sensitive to so it may just be in conjunction with another product in my routine. It's not unpleasant, just unexpected.
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Reviewed in the United States on February 27, 2026
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ZumaLun
New York, US
★★★★★ 5
Amazing!
This sponge is amazing for applying the JI Pressed powder! I had been using a cheap sponge before but then decided to try this and it applies soooo much better. I think it’s because this sponge doesn’t absorb the makeup into it but instead releases it onto your skin for better coverage. It’s also incredibly silky smooth and allows you to smooth out and blend the makeup well. I don’t like using brushes so this is the perfect alternative!
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Reviewed in the United States on September 2, 2024

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