Can a fibreglass boat skin be too thick so affecting buoyancy?

Discussion in 'Fiberglass and Composite Boat Building' started by Tallulah, Jun 10, 2011.

  1. Tallulah
    Joined: Jun 2011
    Posts: 2
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: lincolnshire. UK

    Tallulah Tallulah

    Hi, My dad had been building a 22ft cabin cruiser. The hull is complete as far as fibreglassing and one side is sanded. The other side isn't sanded due to inaccessibility (he built it in a garage) My dad has now passed away and it is my job to find a new home for the boat. If my dad had added too many layers of fibreglass and resin, could this affect how low the boat will sit once she's fitted out etc. He once mentioned (to my brother) that this is what he had done apparently to make the hull stronger)
     
  2. Herman
    Joined: Oct 2004
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    Location: The Netherlands

    Herman Senior Member

    More weight = deeper in water. That is simple.

    How much weight and how deep in the water, and if that can be called "wrong" is totally upon the user.
     
  3. PAR
    Joined: Nov 2003
    Posts: 19,133
    Likes: 494, Points: 93, Legacy Rep: 3967
    Location: Eustis, FL

    PAR Yacht Designer/Builder

    The thickness of the hull shell will effect the displacement of the boat, but not my much. If you have a hull that's suppose to be a 1/4" thick and you made it twice as thick, the extra 1/4" of laminate will make the boat sink down a little, but we're talking fractions of an inch here.
     

  4. Tallulah
    Joined: Jun 2011
    Posts: 2
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: lincolnshire. UK

    Tallulah Tallulah

    Thanks very much for the info. I feel happier about rehoming the boat now. I didn't want to pass on a pig in a poke and thought I may have it cut up.
     
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