Owens Corning FOAMULAR NGX 250 SSE Rigid Foam Insulation, 1 in x 4 ft x 8 ft (XPS)FOAMULAR NGX 250 1" x 4' x 8' XPS Insulation Board Closed cell, moisture resistant XPS rigid foam board ideal for above and below grade applications. The NGX 250 SSE panel provides durable thermal performance with scored square edges for versatile installation in walls, foundations, and slabs. Key Features: Moisture Resistance: Closed cell XPS helps prevent water absorption for long term performance. Durable Strength: 250 series board designed for

FOAMULAR NGX 250 1" x 4' x 8' XPS Insulation Board

Closed-cell, moisture-resistant XPS rigid foam board ideal for above- and below-grade applications. The NGX 250 SSE panel provides durable thermal performance with scored square edges for versatile installation in walls, foundations, and slabs.

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Key Features:

• Moisture Resistance: Closed-cell XPS helps prevent water absorption for long-term performance.
• Durable Strength: 250 series board designed for robust compressive performance on foundations and slabs.
• Versatile Applications: Suitable for perimeter/foundation, cavity wall, precast concrete, and under-slab use.
• Easy Handling: Lightweight 1" thick boards with scored square edges for straightforward cutting and fitting.
• Sustainability Certifications: Meets federal and state emission regulations; GREENGUARD Gold and LEED referenced certifications.

Please check the Product Data Sheet Here

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Specifications Table:

Specification	Details
Thickness	1" (25 mm)
Length	8'
Width	4' (122 cm)
Edge Type	Scored Square Edge (SSE)
Material	Extruded Polystyrene (XPS)
Product Series	FOAMULAR NGX 250
Style	Commercial Insulation
Compressive Strength	250 series (per product line; see data sheet)
Item Weight	5.2 lb
Pieces per Bundle	12
Applicable Standards	ASTM C578 Type IV; ASTM E119; UL Classification Certificate U-197; UL ER8811-01; Meets California Quality Standards; HUD UM 71A; SCS Global Services Certified; UL Greenguard Gold Certified; UL Classified; UL Environment Certified; Energy Star; LEED
Manufacturer Number	1132521
SKU Product Number	OCF250148SSENGX

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Frequently Asked Questions (FAQ):

Q: What are the board dimensions?
A: Each panel is 1 inch thick and 4 feet by 8 feet.

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Q: Can this be used below grade?
A: Yes, it is suitable for below-grade applications such as foundations and under-slab insulation.

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Q: Is it moisture-resistant?
A: Yes, the closed-cell XPS construction provides moisture resistance.

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Q: What edge type does it have?
A: Scored Square Edge (SSE) for flexible sizing and installation.

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Q: Does it carry environmental certifications?
A: The product references GREENGUARD Gold, LEED, and compliance with U.S. and Canada emission regulations.

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A Sleek, Structural Pink that Elevates Performance

This FOAMULAR NGX panel brings a chic, modern practicality to the envelope—clean lines and that iconic blush hue signal high performance beneath the finish. The scored square edge is a quiet detail that makes customization effortless, ensuring a crisp, tailored fit. Layer it behind masonry or cladding to craft spaces that feel calm, insulated, and confidently built. It’s a smart essential for luxurious comfort, from foundation to facade.

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Upgrade your build with FOAMULAR NGX 250—a moisture-resistant, easy-to-install XPS board that delivers dependable thermal performance.