[Rhodes22-list] New Joint of Deck and Hull from originator

[The Rhodes 22 Email List]

Hi Chuy:

The postings opposed to the idea of fixing the hull-deck join with
fibreglass lay-up were making me increasingly doubt the approach I
suggested. However, your reference to Don Casey's article in Sail magazine
prompted me to check the subject of hull-deck repairs in Casey's  book
Sailboat Hull and Deck Repairs that I had read about 4 years ago and had
forgotten about. I knew that I had not just dreamt up the idea of joining
the hull and deck with fibreglass layup but I could not remember where the
idea originated. Casey gives detailed instructions for sealing with 5200 and
re-fastening where access to the joint is not feasible. That said, he states
the following: 

"FIBERGLASSING
THE BEST SOLUTION FOR A LEAKING HULL-to-deck joint is to join the two parts
permanently with fibreglass lay-up. This can be done either inside or
outside, depending on access and the design of the joint." (Emphasis is in
the original text.)

In discussing types of joints, Casey says: "The best joints are fibreglasses
together into a single strong and leak-free unit, but few are built this
way. Most are joined mechanically with rivets, screws, or bolts and depend
on sealant to keep water out."

In my case, getting access to the joint involved removing the covering pads
(a few screws), cutting back the lip of the liner, and removing the wooden
strip below the joint -all tasks that are much easier than removing and
replacing the rub rail and all of the hull-deck fasteners. I removed my rub
rail because I also had major deck core replacement to do but had that not
been the case I would have stayed with the inside glassing alone.

At least now I can sleep knowing that I had not lost my mind or ruined the
boat.


Graham 



-----Original Message-----
From: rhodes22-list-bounces at rhodes22.org
[mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of The Rhodes 22 Email
List
Sent: February-06-15 1:14 AM
To: The Rhodes 22 Email List
Subject: [Rhodes22-list] New Joint of Deck and Hull from originator

Hi ALL ,
   I received my special anniversary issue of Sail Magazine early in the
week but did not have time to read it., Volume 46 Number 2 February 2015.
Tonight I open it to the table of contents and guess what one of the
articles was about?   Page 60, "Sealed up Tight When is comes to securing
the hull to deck, which method is best?" by Don Casey.

The author states "Boat builders are increasingly relying on high-strength
methacrylate adhesives to fuse the hull to the deck into a single, leak
proof component, in some cases omitting mechanical fasteners all together".
Further he states that this process is expansive so some builders use
flexible adhesives to bond the deck and hull, like 5200.  He goes on and
states that repairs on the joint are not treated as two halves, since there
is no reason to.  In most cases the deck to hull repair is done without a
joint in the damaged area. 

The article is very well written and easy to follow.  He explains the
different hull to deck joints used.  Their strengths and weaknesses and the
reason to for their use.  

After reading the article, I think that I most of my ideas with a few minor
adjustments. 

Thanks for all your input.

Chuy
AfterMath  1987
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