To determine if your windows are impact resistant, start by checking for a permanent mark or label in the corner of the glass. Impact-resistant windows typically have a manufacturer’s marking indicating they meet ASTM standards, such as E1886 or E1996. You can also look for a thicker, laminated glass pane with two layers bonded by a plastic interlayer. These windows often have sturdier, reinforced frames and may feel heavier than standard glass. Another clue is their ability to slightly flex rather than shatter when pressure is applied. If you're still unsure, consult a local expert or window contractor for an inspection. For homeowners considering upgrades, replacement windows Baton Rouge LA, professionals can provide certified impact-resistant options ideal for hurricane-prone regions. Investing in these windows not only boosts safety but also improves energy efficiency and home value. Always verify product specifications before purchase to ensure true impact resistance.