When you try to replace a screen section, (on a pool enclosure, porch, patio or other) and the outside temperature is below 70 there could be a problem.
In cooler temperatures the spline (black rubber tubing that keeps the screen in place) gets like hard plastic and when the temperature gets below 60 it is very rigid.
Because of the rigidness of the spline (tubing), the spline may tare the screen . The tares may be very small (only a few strands) but that small tare can rip more easily, so in a few months you may have rips and tares along the edge of a fairly new screen.
The screen material also becomes more brittle in cooler weather and may tare easier when you work with it.
So, even though you may want to replace your screens ASAP, it is better to wait until the outside temperature is above 70.
For screen service in Wellington Fl call John at 561-798-3132