If you are located in a 120 mph wind zone you are most likely required to have some form of impact protection.*
Typically, if your windows or doors are between ground level and 30 feet in height you will be required to use products that have passed the large missile requirements for wind-borne debris. Anything over 30 feet in height will require products that have passed small missile requirements.
A product that meets the tougher large missile standard can be used where the lesser small missile standard is required, but a small missile product can not be used where a large missile product is required.
* The 120 mph wind zone map is developed by the American Society of Civil Engineers.
Typically, if your windows or doors are between ground level and 30 feet in height you will be required to use products that have passed the large missile requirements for wind-borne debris. Anything over 30 feet in height will require products that have passed small missile requirements.
A product that meets the tougher large missile standard can be used where the lesser small missile standard is required, but a small missile product can not be used where a large missile product is required.
* The 120 mph wind zone map is developed by the American Society of Civil Engineers.