J/30 Class Association Forums J/30 Forum The Boat, Sails and Equipment Core Thickness

Hi all -

I'm embarking on my first core replacement on hull# 539 after 17 years of ownership, looking forward to it! Looking for guidance on core thickness.

The worst location is near the bow cleat, vent and pump out access. Does anyone know the thickness of the core in that area? Is it consistent everywhere including the transom? I may address that at some point, luckily the problem is limited but there is evidence of moisture near the exhaust tube (as well as anchor locker area and cabin top).

Thanks in advance.

Andy Ware (Mystic)