FOAMULAR 400 R-15 XPS Foam Board, 3″ x 4′ x 8′

High-performance extruded polystyrene (XPS) foam board delivering R-15 insulation in a durable 3-inch panel. Designed for high-load applications and exterior sheathing, it resists moisture and is easy to cut and install.

Key Features:

• High Compressive Strength: 400 series XPS rated at 40 PSI for demanding applications
• Moisture Resistant: Low water absorption helps retain R-value over time
• Energy Efficient: R-5 per inch delivers R-15 in a 3-inch board
• Easy to Work With: Lightweight panels cut cleanly with basic tools
• Versatile Use: Suitable for exterior foundation walls, sheathing, cavity walls, and commercial projects

Specifications Table:

Frequently Asked Questions (FAQ):

Q: Can this board be used below grade or under slabs?
A: YesFOAMULAR 400 is intended for high-load applications including exterior foundation walls and under slabs; follow local codes.

Q: Does it come faced or unfaced?
A: Unfaced XPS foam board.

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

Q: Is it mold or mildew resistant?
A: Yes, XPS construction provides mold and mildew resistance.

Q: What is the R-value?
A: R-15 total (R-5 per inch).

Sculpted Strength Meets Sleek Thermal Performance

This streamlined pink panel brings architectural confidence to utility spaces, sealing envelopes with crisp, modern precision. The 3-inch profile and square edges create a clean, continuous plane that elevates foundations and sheathing alike. Pair it with exposed concrete and black hardware for an industrial-chic moment thats as functional as it is refined. Its an essential layer for luxurious comfort and enduring efficiency.

Upgrade your envelope with FOAMULAR 400 and lock in long-lasting R-15 performanceadd to cart today.