Stern solarium seems rotten

[psousa]

Hi there!

After every ride on salt water I like to wash and clean my boat. Since I go out for a ride almost every day, you can imagine how often my boat is flooded for cleaning purposes.... :S

Recently, I found stern bath platform with huge light brown stains when I come back to the marina on the next day. Also, some dark brown wood scabs suddenly appears on bath platform from time to time and I don't know from where (initially I thought it was stuff coming from security gasoline vapors exhaust system). But recently I found the origin: they come from inside stern solarium as you can see on the pictures.
Is this filled up with wood scabs inside or is something getting rotten?

Any tip on how to fix this by myself? Anyone with same issue?

Cheers!

[mmwjr]

The plywood structure is rotting, loose staples and wood chips.

You will have to remove the entire pad at the hinge. Remove all staples then pull off vinyl cover and foam padding to get to the plywood.

Use the old wood as a template to cut a new piece of wood.

Install padding and vinyl over need wood and staple it on. Use SS or monel staples.

[psousa]

Thank you for tips!

I can't imagine there is plywood in a boat :\
I'm a rookie here!

This is another project added to my 'winter todo list'.

Cheers!

[biggerseagar]

Your entire structure of your boat that holds the fiberglass sides and hull from collapsing is done by a wood structure. It is covered by a epoxy skin that keeps the moist and water out. You can buy a marine grade plywood for your project. There is also a water proofing paint, that if you buy regular outside plywood, much cheaper, you can coat to protect from rotting again.

Roger

[mmwjr]

The back bone of most boats is wood laminated into the stringers and transom.

Also common in seats.