FOAMULAR 250 XPS insulation board is great for many residential and commercial construction applications such as wall furring, perimeter/foundation, cavity wall, pre-cast concrete, under a slab, crawl spaces, sheathing, and other applications. Thickness Sq Ft Per Board R-Value 3/4 ...FOAMULAR 250 XPS insulation board is great for many residential and commercial construction applications such as wall furring, perimeter/foundation, cavity wall, pre-cast concrete, under a slab, crawl spaces, sheathing, and other applications. Thickness Sq Ft Per Board R-Value 3/4" 32 Sq Ft R4 1" 32 Sq Ft R5 1.5" 32 Sq Ft R7.5 2" 32 Sq Ft R10 2.5" 32 Sq Ft R12.5 3" 32 Sq Ft R15 4" 32 Sq Ft R20 Features Excellent long-term stable insulating performance at R-5 per inch Exceptional moisture resistance, long-term durability Lightweight, durable rigid foam panels are easy to handle and install Easy to saw, cut or score Scored Square Edge Applications - Slows the transmission of water vapor and moisture in masonry walls - Provides continuous insulation over wood or steel stud framing, in insulated concrete sandwich panel walls, in masonry unit cavity walls, or when used with non-penetrating, surface mounted furring systems over masonry or concrete walls - Insulates and retains its properties in below-grade perimeter and foundation applications, or directly beneath the concrete slab to complement the insulating sheathing envelope around the building framing - FOAMULAR 250 XPS insulation is great for below-grade applications.
FOAMULAR XPS insulation is resistant to degradation from the components of common soils and will retain its insulating performance characteristics even after prolonged exposure to moisture - Extruded Polystyrene Provides a weather-resistant barrier (when joints are sealed) to enhance the building’s resistance to air and moisture penetration Product Data Table Property Test Method2 Value Thermal Resistance3, R-Value (180 days) minimum, hr·ft2·°F/Btu (RSI, °C·m2/W) @ 75°F (24°C) mean temperature ASTM C518 ¾" Thickness 4.0 (0.70) 1" Thickness 5.0 (0.88) 1½" Thickness 7.5 (1.32) 2" Thickness 10 (1.76) 2½" Thickness 12.5 (2.20) 3" Thickness 15 (2.64) 4" Thickness 20 (3.52) @ 40°F (4.4°C) mean temperature ¾" Thickness 4.3 (0.76)