FOAMULAR 250 R-15 XPS Foam Board, 3" x 4' x 8'

Rigid extruded polystyrene (XPS) foam board with 25 PSI compressive strength delivers R-15 thermal performance in a 3-inch panel. Durable, moisture-resistant board for foundations, sheathing, under-slab and cavity walls; easy to score, snap, and install.

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Key Features:

• High R-Value: R-15 at 3 inches for strong thermal resistance
• Durable Strength: 25 PSI compressive strength handles jobsite loads
• Moisture Resistant: XPS core resists water absorption to retain R-value
• Easy to Work With: Lightweight panels score and snap cleanly; no special tools needed
• Versatile Use: Suitable for exterior/interior foundation walls, sheathing, under slab, and cavity walls

Please check the Product Data Sheet Here

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Specifications Table:

Specification	Details
Insulation Type	XPS (Extruded Polystyrene) Rigid Foam Board
Compressive Strength	25 PSI
R-Value	R-15
Thickness	3 in
Width	48 in
Length	96 in (8 ft)
Coverage Area	32 sq ft per board
Edges	Square Edge; scored
Faced or Unfaced	Unfaced
Compatible Install Surface	Concrete, Plywood, Wood
Interior/Exterior	Interior/Exterior
Insulation Features	Formaldehyde Free, Moisture Retardant, Mold Resistant, Water Resistant
Number of Pieces	1
Pack Size	1
Warranty	Limited Lifetime

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Frequently Asked Questions (FAQ):

Q: Can this be used below grade or under a slab?
A: Yes—FOAMULAR 250 XPS is rated for below-grade applications including exterior foundation walls and under-slab use.

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Q: Is the board faced or unfaced?
A: Unfaced XPS; a separate thermal barrier like drywall is required when left exposed indoors.

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Q: What are the panel dimensions and coverage?
A: Each panel measures 3 in. thick x 48 in. wide x 96 in. long and covers 32 sq. ft.

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Q: What tools are needed to cut it?
A: Score with a utility knife and snap; no special tools required.

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Q: Is it mold or moisture resistant?
A: Yes—XPS resists moisture absorption and is mold resistant, helping maintain thermal performance.

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Sculpted Thermal Armor for Modern Envelopes

This crisp, pink XPS panel brings a tailored precision to walls and foundations, creating a seamless thermal envelope that feels intentional and refined. The standout is its confident 3-inch profile—R-15 performance with a sleek, square edge that lines up beautifully. Pair it with clean-detailed cladding and polished concrete for a minimalist, high-performance shell. It’s an essential layer of quiet luxury, where form meets formidable function.

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Upgrade your envelope with FOAMULAR 250 and lock in durable, R‑15 performance—add to cart and start insulating today.

Warranty

Installation