StoTherm storm systems from STO
StoTherm storm systemsSTOwww.stocorp.com High-impact cladding system for new and existing structures ASTM Level-E protection Protects building envelope from wind and windborne debris Two hours' water penetration resistance when tested per ASTM E 331 at 6.24 psf (approximately 50 mph sustained wind with 8 inches per hour of rainfall)
