FOAMULAR 250 R-12.5 XPS Foam Board, 2-1/2 in. x 4 ft. x 8 ft.
Rigid extruded polystyrene (XPS) insulation board delivering 25 psi compressive strength and R-12.5 thermal performance at 2-1/2 in. thickness. Scored square edges snap cleanly for fast sizing; ideal for exterior sheathing, foundations, and under slab applications.
Key Features:
High R-Value per Inch: R-12.5 at 2-1/2 in. thickness for strong thermal resistance
Durable Strength: 25 psi compressive strength stands up to jobsite and backfill loads
Moisture Resistant: XPS resists water absorption to help maintain R-value
Easy to Size: Factory-scored square edge breaks into 24 in. or 16 in. widths for quick installs
Versatile Applications: Use on walls, exterior sheathing, and under slab areas
Exterior sheathing, cavity walls, foundation/exterior wall, under slab, attics/garages
Certifications
GREENGUARD certified (low chemical emissions) per referenced materials
Warranty
Lifetime Limited (see manufacturer for details)
Frequently Asked Questions (FAQ):
Q: What are the board dimensions and R-value? A: Each board measures 2-1/2 in. thick by 4 ft. wide by 8 ft. long and provides R-12.5.
Q: Can I cut the board to fit studs? A: Yes. The scored square edges allow snapping into 24-in. or 16-in.-wide pieces; it can also be easily scored and cut with a utility knife.
Q: Where can this insulation be used? A: Suitable for exterior sheathing, cavity walls, foundation/exterior wall, and under slab applications.
Q: Is it faced or unfaced? A: Unfaced XPS rigid foam.
Q: Does it resist moisture? A: Yes, XPS has low water absorption to help retain thermal performance.
Sculpted Pink Performance for Modern Envelopes
This FOAMULAR panel is a crisp, architectural layer that streamlines the building envelope with a chic pink edge. Its scored profile is the standout—snap it into elegant, perfectly proportioned modules for bays and panels. Pair it with clean plywood sheathing and matte black cladding for a tailored, high-performance facade. It’s the quiet luxury of comfort—discreet, durable, and decidedly refined.
Upgrade your envelope with FOAMULAR 250 today for faster installs, lasting R‑value, and dependable moisture resistance.
All third party trademarks, including logos and icons, referenced on our website and product pages remain the property of their respective owners. Unless specifically identified as such, Arbor's use of third party trademarks does not indicate any relationship, affiliation, sponsorship, or endorsement between Arbor Home and the owners of these trademarks. Any references by Arbor Home to third party trademarks are to identify the corresponding third party goods.
Why choose us
The Arbor Way
• Lowest Prices. Easy Online Shopping. Fast Delivery.
• No lines. No holds. No Hassles.
• America's Largest Inventory Network for All Home Improvement Supplies Nationwide.