I am new to the housebaot world. I have a 1986 58' Jamestowner. Prior owner stated that instead of Gel Coatinging he put on a "good" grade of paint. I have looked at the roof and I do not find any obvious bad places. I do see some area that the gel coat is starting to flake up (it was underneath the hottub). I did see some hairline cracks in the gel coat. My question is - Is there any other type of coating that can be used instead of gel coating? - If there is - can it be applied over the old gel coat? Would appreciate info and advice.