Freezing of the storm door when winter cold causes condensation to form as cold air hits trapped hot air.
Heat build up between storm door entry door.
As you mentioned the problem with full view storm doors is the heat buildup.
Depending on the circumstance the heat that is trapped between the low e storm door and entry door can cause a number of problems including.
Warping or bowing the entire entry door.
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.
On colder days the storm panel can be easily slid into its usual position.
Warping the glass trim on the entry door.
They have additional energy benefits as well acting as a buffer from winter temperatures.
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.
But i would highly suggest you get one.
Low e glass will reduce the heat gained.
If your door has a porch or wide overhang and will never get wet then perhaps you would not need a storm door.
With the help of our trickle vent the titan heat vent the hot air is given a path to exit.
Check the door manufacturer s recommendations if this is a concern.