GlasRoc® high-performance exterior sheathing with EGRG technology is designed for long term protection to weather exposure and has a superior water resistant surface that does not inhibit water vapor permeance. Excellent fire resistance properties, and mold and moisture resistance. Compatible with most exterior wall systems and applications. Conformity to design and code requirements. Strength - with enough flexibility to bend to curved surfaces. A lightweight sheathing that cuts like regular gypsum board and is easy to handle and install - with minimal skin irritation due to fully-embedded glass mat.