Owens Corning FOAMULAR NGX 250 XPS Foam Board Insulation, R-15, 25 PSI, 3 in. x 4 ft. x 8 ft., Scored Square EdgeFOAMULAR NGX 250 R 15 XPS Foam Board, 3 in. x 4 ft. x 8 ft. Rigid extruded polystyrene (XPS) foam board delivering R 15 thermal performance at 3 in. thickness with 25 PSI compressive strength. The NGX formulation offers high moisture resistance and easier scoring snap cutting for foundations, underslab, and exterior sheathing applications. Key Features: High R Value: R 15 at 3 in. thickness for strong thermal performance Durable Strength: 25 PSI

FOAMULAR NGX 250 R-15 XPS Foam Board, 3 in. x 4 ft. x 8 ft.

Rigid extruded polystyrene (XPS) foam board delivering R-15 thermal performance at 3 in. thickness with 25 PSI compressive strength. The NGX formulation offers high moisture resistance and easier scoring/snap cutting for foundations, under‑slab, and exterior sheathing applications.

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Key Features:

• High R-Value: R-15 at 3 in. thickness for strong thermal performance
• Durable Strength: 25 PSI compressive strength handles demanding loads
• Moisture Resistant: XPS resists water absorption to help retain R-value
• Easy to Work With: Scored square edge snaps cleanly into 16 in. or 24 in. widths
• Sustainable NGX Blowing Agent: Significantly reduced global warming potential vs. legacy XPS

Please check the Product Data Sheet Here

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Specifications Table:

Specification	Details
Product Type	Rigid Foam Board Insulation
Brand	Owens Corning
Series	FOAMULAR NGX 250
Material	Extruded Polystyrene (XPS)
R-Value	R-15
Thickness	3 in
Width	48 in (4 ft)
Length	96 in (8 ft)
Coverage Area	32 sq ft per sheet
Compressive Strength	25 PSI
Edge Type	Scored Square Edge
Faced or Unfaced	Unfaced
Compatible Install Surface	Concrete, Plywood, Wood
Insulation Location	Exterior Sheathing, Exterior Wall Foundation, Under Slab
Insulation Features	Formaldehyde Free, Moisture Retardant, Mold Resistant, Water Resistant
Interior/Exterior	Interior/Exterior
Number of Pieces	1
Pack Size	1
Sheathing Type	XPS
Warranty	Limited Lifetime
UPC	0047563721737

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Frequently Asked Questions (FAQ):

Q: Can this board be used below grade or under slabs?
A: Yes—rated for exterior foundation walls and under‑slab applications; verify local code for vapor barrier requirements.

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Q: Does it need to be covered indoors?
A: Yes—FOAMULAR NGX cannot be left exposed and must be covered with a 15‑minute thermal barrier such as drywall.

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Q: Is it faced or unfaced?
A: Unfaced rigid XPS board.

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Q: How do I cut and size the panels?
A: Score with a utility knife and snap; factory scores allow breaking into two 24 in. pieces or three 16 in. pieces.

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Q: What is the panel size and coverage?
A: Each panel is 3 in. x 48 in. x 96 in. and covers 32 sq. ft.

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Sculpted Thermal Armor in Signature Pink

This sleek, scored XPS panel slips behind your finishes to cradle the home in quiet, efficient warmth. I love the disciplined grid that lets you tailor clean 16-inch or 24-inch modules—precise and purposeful. Layer it beneath slabs or along foundation walls, then cloak it in gypsum for a polished envelope. It’s the discreet luxury that elevates comfort and performance with effortless style.

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Upgrade your home’s envelope with FOAMULAR NGX 250 and lock in energy savings with durable, easy‑to‑install R‑15 insulation today.

Warranty

Installation