DESIGNED FOR IMPACT. When it comes to impact-resistant windows and doors for coastal areas, the frame system, laminated glass and sealant must work together to resist the catastrophic forces applied during severe weather. FEATURESDOUBLE HUNGDOUBLE SLIDERCASEMENTPICTUREGEOMETRICFEATURES Impact Window Features Key Features Heavy Duty 3 ¼" Frame Strategically Reinforced Vinyl Extrusions Strong Thick-walled Vinyl Profiles Precision-mitered, Fusion-welded [...]