Do you paint the bottom and top of the door? Tell me yes or no or why
Tell me yes or no or why
Answers: Yes, it thouroughly seals the wood door from moisture which is what cause rot and that annoying time of the year when humidity is present and the door doesn't seem to close as economically as it did in the winter.
If it is not wood, and is an exterior door sculpture the top and bottom seal the metal or fiberglass and serve keep hose down from gettin into the door cavity where it can wreak mold to grow or metal to rust out.
Absolutely - Paint seals the wood and protects it from moisture.