Join Date: May 2012
Location: North Vancouver, BC
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Re: Tanzer 26 spider cracks
Fine cracks in the gelcoat are not uncommon on old boats, and more often than not are purely cosmetic. They do tend to show up around stress points, and areas that flex, like Genoa tracks and stanchion bases.
Having said that, they CAN be a sign of an underlying structural failure, such as rotten core in the decks. At the very least you should sound the suspect areas by gently tapping with a small hammer. Delaminated areas will have a different sound than solid areas.
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2011 Jeanneau 39i Azura