08/26/2026
Product spec sheets reference missile levels and test standards that mean nothing to most property owners. Here's a plain-language breakdown.
Missile levels (often labeled A through E, or referenced by test standard) describe the size and speed of debris a window has been tested to withstand without breaching. Higher missile levels correspond to higher-risk exposure categories — generally, coastal and high-velocity hurricane zones require higher levels than inland properties.
The missile level required for your property isn't optional or a matter of preference — it's set by your location's exposure category under Florida Building Code.
When we recommend a product, the missile level rating is one of the first things we confirm, alongside design pressure. Getting either one wrong means a product that looks impact-rated on paper but doesn't meet your actual code requirement.
If a spec sheet you've been handed doesn't clearly state a missile level, that's worth asking about before you buy.
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