Products / RetroPlus Roof Board

RetroPlus Roof Board is a high-density, expanded perlite-based roof cover board. The data sheet (RS-5046, 09-20) says it meets ASTM C728 Type 3, prints 4 by 4 and 4 by 8 foot sizes and a nominal compressive strength of 60 psi at 5 percent consolidation, and lists production in Rockdale, Illinois.