Adding a storm door particularly a non vented variety to your fiberglass door may actually heighten the chance of damage in particularly hot climates as trapped heat between the two doors.
Heat build up between storm door entry door.
Low e glass will reduce the heat gained.
A glass storm door could trap heat against an entry door and cause damage if the exterior door gets more than a few hours of direct sun each day.
On hot or sunny days the storm panel can be partially opened to vent some of the heat that builds up between the doors.
Hot air that is trapped in between the storm door and entry door leading to condensation build up damage to the entry door s paint finish or glazing bead especially visible on inexpensive entry door brands.
Check the door manufacturer s recommendations if this is a concern.
But i would highly suggest you get one.
Freezing of the storm door when winter cold causes condensation to form as cold air hits trapped hot air.
On colder days the storm panel can be easily slid into its usual position.
As you mentioned the problem with full view storm doors is the heat buildup.
Warping or bowing the entire entry door.
Storm doors for patio doors are hard to find but they are available.
With the help of our trickle vent the titan heat vent the hot air is given a path to exit.
Warping the glass trim on the entry door.