Impact Entry Doors: The Most Overlooked Part of Hurricane Protection

When hurricane season conversations turn to protection, windows get most of the attention. But experienced contractors know that entry doors — particularly decorative doors with large glass panels — are often the weakest opening in a Florida home. And when a door fails in a hurricane, the pressure change can be catastrophic.

Why Doors Are a Critical Weak Point

A standard residential entry door is a large, single plane of material held in place by a relatively small number of fasteners and a basic locking mechanism. When wind pressure builds against it, the entire load is concentrated at those attachment points. A door that isn't designed and tested for your wind zone can bow, delaminate, or blow out of the frame entirely.

The failure of a door or window doesn't just let in rain — it creates an immediate and dangerous pressure differential inside the structure that can lift the roof assembly. This is why Florida Building Code treats every door and window opening as a critical structural point.

What Makes a Door "Impact Rated"

Like impact windows, impact-rated entry doors are tested to ASTM E1886 and E1996 standards. The door assembly — frame, door slab, glazing if present, hardware, and threshold — must survive large-missile impact and then withstand 9,000 pressure cycles without water infiltration or structural failure.

This is an assembly test, which means it's not enough to have an impact-rated slab in a standard frame. The entire system must be tested and certified together.

Steel, Fiberglass, and Wood: What's Right for Florida

• Fiberglass — The most popular choice for Florida. Resists denting, doesn't rust, won't warp or swell in humidity, and can be finished to look like wood grain. Excellent thermal performance. Our most commonly installed door type.
• Steel — Strong and typically the most cost-effective option. Vulnerable to denting and rust if the finish is compromised by salt air — requires more maintenance in coastal environments.
• Wood — Beautiful and customizable but requires regular maintenance to resist Florida's humidity. Not commonly used in direct impact applications.

Glass Panels in Entry Doors

Decorative glass panels — sidelights, transoms, door lites — dramatically increase the visual impact of an entry but also increase the engineering challenge. Each glass element must be impact-rated laminated glass, properly installed in an approved frame system. Many homeowners are surprised to learn their existing decorative door glass is not impact-rated even if the door itself is.

Don't Forget the Garage Door

The garage door is typically the largest opening in a home and historically one of the most common failure points in hurricanes. Modern impact-rated garage doors or garage door bracing systems are required in Florida's wind-borne debris region. If yours was installed before 2002 and hasn't been inspected recently, it's worth having it checked.