Storm doors for patio doors are hard to find but they are available.
Heat build up between storm door entry door.
Warping or bowing the entire entry door.
Warping the glass trim on the entry door.
But i would highly suggest you get one.
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.
If your door has a porch or wide overhang and will never get wet then perhaps you would not need a storm door.
They have additional energy benefits as well acting as a buffer from winter temperatures.
On hot or sunny days the storm panel can be partially opened to vent some of the heat that builds up between the doors.
Low e glass will reduce the heat gained.
On colder days the storm panel can be easily slid into its usual position.
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.
Check the door manufacturer s recommendations if this is a concern.
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.
With the help of our trickle vent the titan heat vent the hot air is given a path to exit.