1980 26' bayliner flybridge flooring questions

DJ87

Seaman
Joined
Dec 20, 2010
Messages
65
Hi Guys,


i need some help with my flybridge bayliner. i bought if from a breast cancer auction fund raiser and didnt really get to do a full inspection on her until after i won. I had noticed the floor was soft when you walk into the kitchen by the main hatch so after doing some investigation i found the caulk around the rear door and kitchen window had failed allowing water in directly behind the stairs. This boat had been in storage in ventura, ca out doors for like 10 years, so you can imagine when i pulled up the carpet i had some wood rot and some plywood delamentation. I have removed the entire interor, kitchen, helm, sleeping quaters, head etc and have started removing decking. When i fixed up my 20 foot bayliner ski boat i had no rot and just sealed the floor and put down carpeting. But on this all the floor has to come up as the rot had spread into the boat twords the nose and some years ago a termite was snacking on the deck. As i pull up the floor i noticed the flooring itself is not secured to the "floor joists" but instead floats on top with fiberglass at the joints where the flooring meets as well as where the flooring meets the hull. Is this normal? On my ski boat they screwed the decking down and fiberglassed over it. So thats the first question, second is in regards to floation foam ,mine is dry all the way through and isnt breaking up but my, "floor joists"for lack of the proper word, are a little loose and one appears to be cracked slightly. Would it make sense to replace this foam and be able to secure these joists or just screw the new floor into the joists to tighten them up? from what i see so far floation foam is expensive on iboats .com and says it only does like 1 square foot for $100.00, yikes.
 

DJ87

Seaman
Joined
Dec 20, 2010
Messages
65
Re: 1980 26' bayliner flybridge flooring questions

i have attached pics, what do you guys think?
 

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Luhrs28

Chief Petty Officer
Joined
Jul 14, 2010
Messages
423
Re: 1980 26' bayliner flybridge flooring questions

My 28' (vintage 1977) doesn't have any foam, and I didn't think any big boats ever did. I wonder given the large interior volume of that boat if the foam would prevent it from sinking. Maybe it was added by some previous owner without calculating the displacement volume.
 

sqbtr

Senior Chief Petty Officer
Joined
Feb 23, 2010
Messages
716
Re: 1980 26' bayliner flybridge flooring questions

That is a big cabin for a 26' boat. The foam is probably more for structure than flotation. Have you dug down and checked for water at the bottom of the foam? It is a sweet boat and I wouldn't hesitate to dig deeper as I'm sure there is some more rot lurking there. Good luck with the project.
 

DJ87

Seaman
Joined
Dec 20, 2010
Messages
65
Re: 1980 26' bayliner flybridge flooring questions

i have dug down to the hull in 2 places and the foam was dry but i did notice that the floor joists were really wet at first and kinda soft. but after having the floor off the wood dried and got pretty hard. i did notice one of the joist had a crack half way through. thanks for that comment , i think its a cool boat too, figured this one would be a good one to learn on. do you think it would make more sense to remove the foam and reglass the wood joists to make them tight to each other? since they dried and got firm again am i ok or am i better to jsut rip out foam and tired wood joist?
 

DJ87

Seaman
Joined
Dec 20, 2010
Messages
65
Re: 1980 26' bayliner flybridge flooring questions

i looked at your flybridge restore, very nice and those pics helped me learn a little more
 
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