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