How Impact Glass Is Tested

Categories // Did You Know

Missiles and Wind Pressure

Miami-Dade County has the strictest code approval requirements in the United States.  In order for impact-resistant windows to be approved by Miami-Dade, the windows must be vigorously tested to ensure they meet all requirements.  Two main tests conducted by manufacturers are the Missile Test and the Cyclical Test.

The Missile Test determines the glass’s ability to withstand impact.  This does NOT mean that impact glass will not break, it simply means the window will remain intact and stay in its frame.  Windows and glass doors that have been proven to resist the hurricane impact testing from large windborne debris are referred to as impact rated products. To test the glass’s strength a 9-pound, 2x4 piece of lumber, traveling 50ft-per-second is launched at the glass – twice.  The lumber is considered a “large missile”.  To test for ratings for “small missiles” ten 2g (gram) steel balls are simultaneously launched at 89mph, three separate times.

The Cyclical Test determines if glass meets pressure requirements for storm-force winds.  Following the Missile Test, the glass is placed in a pressure simulator where positive and negative pressure flexes the glass pane for 4,500+ cycles.  The results determine the pressure rating for the impact glass.  


  • icons-energy-efficiency

    Energy Savings

  • icons-hurricane-protection Hurricane Protection
  • icons-impact-resistant Impact Resistance
  • icons-storm-protection Storm Protection
  • icons-ultraviolet-protection Ultraviolet Protection
  • icons-made-in-the-usa Professional Installation

PGT Windows and Doors

CGI Impact Doors & Windows

Windoor Impact Windows and Doors

Impact Resistant Windows & Doors Broward

Showroom Discount

Impact-Windows-and-Doors-Discount-CouponNew customers, visit our showroom and receive a $50 credit certificate off your first order of $1,000 or more.*

Protecting Your Home

Find out how Atlantic Armor can protect your home, business and family from storms and burglaries.

  • Hurricane and Storm Protection
  • Burglary and Break in Protection

Get Impact Windows & Doors Today

Contact Us Today

Find Window and Door Installer(954) 770-0726  Best Door and Window Installer Florida

Visit Our Showroom
Mon-Fri: 8am-4:30pm

7080 W State Road 84

Suite 4
Davie, FL 33317