What is the correct method for repairing a cracked Rib

by Ben

Hi All,

What is the correct method for repairing a cracked rib.

It needs to stand up to a survey.

What we have done so far is to remove the cracked section of the existing rib, (6'' each side) scarfing the ends.

Then laminated marine ply in position gluing with Balcotan Poyleuthene glue.

Fixed in position with copper nails and roves as built day one.

Is this O.K?


Comments for What is the correct method for repairing a cracked Rib

Click here to add your own comments

Apr 17, 2012
Cracked Rib Repair
by: Mike

Hi Ben,

If you have a look at one of the
WoodenBoat Series of Books
"Frame, Stem & Keel Repair" you will find an article on using a similar technique to repair cracked ribs.

You can get a preview on Google books, scroll down to page 59.

In my opinion this method of laminating is much better and neater than sistering.

However, it is normal to laminate thin slats of wood with the grain running along the direction of the rib.

With plywood the grain of all the intermediate piles (layers) runs at right angles to the outer layers.

Whether it will be strong enough will depend on how much stress it has to take and how much of that stress is being transferred to the adjoining frames.

What the surveyor will think of it will depend on how much he knows about wooden boats, these days most only know about plastic variety.

Click here to add your own comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Your Questions and Answers.

While the original system worked quite well as a one-off post, it didn’t allow for updating or posting new photographs etc.

That is why I have introduced the new Your Pages.

This is new ‘Community’ platform is for 2018.

It is designed to put you in control of your content, make it easier to for you to tell us about your Wooden Boat, upload photos etc. and most of all post updates as and when you wish to.

There is also a forum where you can ask any questions you may have about Wooden Boats and join in the conversations.
So, please come on over and join our community of likeminded Wooden Boaters.