Protect your homes and home owners from wind-borne debris and UV rays with the Impact-Resistant LifeGuard windows and patio doors. Durability and protection are derived from a highly resilient laminate of polyvinyl butyral (PVB) that is fused between two panes of glass. This heavy-gauge PVB interlayer resists wind-borne debris. The laminated glass also minimizes sound transmittance and UV fading. LifeGuard IG products, including those with Zo-e-shield Coastal, have been tested in accordance with ASTM E1886 and E1996 as referenced in the International Building Code and the International Residential Code.