Corrugated or smooth outer finish?
I'm planning to replace my current TT. Looking at older ones, it seems that the corrugated aluminum finish holds up better to the weather. Also, it doesn't seem to get those ugly black streaks on it. ...
Forum Discussion
Fiberglass units can get black streaks too. Fiberglass will hold up to the weather fine if you take the time to keep it waxed and protected from the elements. I looked at stick & tin, but went with fiberglass.
