Saving time, maintaining product performance, and ensuring all specified products work together: key priorities for architects, and the driving force behind product development for Georgia-Pacific.
With a closed cell polyiso foam core and inorganic coated glass facers, this high-density cover board from Johns Manville has a Grade 1 compressive strength and an R-value of 2.5.
Cover boards have been used with flat roof systems for decades, starting with hot mopped and torch-applied asphalt systems to protect the underlying roof from damage during installation.