I have about a 8' x 4' skylight with opaque white plastic dome. It has 3
cracks radiating out to about 1'. its intact, just cracked. Probably the
wind blew a pine cone into it.

How can I go about repairing it? The dome is not viewed from inside the
house as there is a colored glass inset in the ceiling. I was thinking
contact cement and laying a flexible membrane over the cracked area that
would withstand the weather and UV. I visited Lowes but saw nothing like
that. It would be great if the membrane was translucent but not critical.
Any hints appreciated on how to go about this repair.
thanks!