LifeGuard Insulated Glass windows meet ASTM E 1996 and ASTM E 1886 Missile Level D rating. The windows feature one pane of impact-resistant laminated glass on the interior and a pane of non-laminated annealed Low-E2 glass on the exterior, with argon or krypton in between. Weather Shield. 800.477.6808. www.weathershield.com.Circle 166
