R-5 (15 PSI) 1" x 4' x 8' Tongue and Groove Polystyrene Foam 047563722499

Discover the exceptional insulation solution with R-5 (15 PSI) 1" x 4' x 8' Tongue and Groove Polystyrene Foam, available at MC Lumber & Hardware. This energy-saving and moisture-resistant XPS foam board features a tongue and groove edge for an exceptional fit, ensuring seamless installation. The strong, lightweight pink foam panels require no special tools, offering convenience for both professional builders and DIY enthusiasts. Ideal for both above and below grade applications, these panels provide a continuous layer of insulation, effectively sealing buildings from air and moisture intrusion.