why do stringers and the foam get water logged and rotten

Boatist

Rear Admiral
Joined
Apr 22, 2002
Messages
4,552
Re: why do stringers and the foam get water logged and rotten

It does not matter how it gets in.
If there water on the stringer and foam it will do damage over time.
Seal all leaks and cover the boat.
Raise the bow and pull the plug and put with the spare in the boat.

Or

Get a welded all aluminum Boat.
 

5150abf

Vice Admiral
Joined
Aug 12, 2007
Messages
5,808
Re: why do stringers and the foam get water logged and rotten

Fiberglass is really good at holding water out but the inside of it not so much, over time water will seep in and get the wood wet and it rots.

The only way around this woudl be to gel coat the inside of the boat too which woudl drive the cost of the boat way up.

As stated, get an aluminum boat, you will still have issues with foam but the hull itself will never rot.
 

ajgraz

Lieutenant Commander
Joined
Mar 1, 2010
Messages
1,858
Re: why do stringers and the foam get water logged and rotten

Water gets under the deck from holes drilled into the deck for mounting seats, from cracks in the glass covering the deck, cracks in the hull exterior, etc.

You can slow this process by using sealer when mounting seats, making sure there are no places on the deck where water pools or collects, making sure you make deck and hull repairs while it's still just a small crack, covering the boat to keep rain out (and tilting a trailer boat with the plug out while stored), etc.; but you'll never keep the water out forever. Damn you entropy!!!
 

erie_guy

Petty Officer 1st Class
Joined
Jan 16, 2007
Messages
269
Re: why do stringers and the foam get water logged and rotten

Shane,

The water logging problem in the coring can be caused by either manufacturer and/or user misuse problems. Some of the more common are:

1. Holes drilled in or through the transom to mount fishfinder transducers, stern platforms, trim tabs, and a mulitude of other stern attachments. Improper sealing of these penetrations will provide a path for water (usually under pressure to enter the core) Solution is to get the proper drilling method and sealant for the job.

2. Stringers that are not sealed (encapsulated) with fiberglass and resin. Weep holes through the stringers that allow water to drain into the bilge not being internally sealed with epoxy. Holes drilled into or through stringers - and not correctly sealed. This can include the engine mounts but often is just carelessness in putting screws into the wooden stringer to simply hold wires and cables neatly.

3. Rub rail (hull to liner) installation and sealing by factory allowing water to enter this seam with each splashing wave.

4. Rain water/splash entering deck fittings (cleets, railing stantions) that are not correctly bedded. (i.e. sealed). This includes windows, port holes, and deck access openings that need to be correctly sealed can be a problem with many boats.

One possible solution is to get a boat that has solid fiberglass construction (i.e. no core used). This results in a heavier boat than one with coring, but the hull will not absorb water during its life. However, problems with protecting the wooden stern, stringers, and decking still remain.

So be careful when you decide to mount something on your boat, you may be opening a "can of worms" resulting in a water logged core, stringers or stern.

erie_guy
Port Clinton, OH
 

NSBCraig

Lieutenant Commander
Joined
Aug 21, 2007
Messages
1,907
Re: why do stringers and the foam get water logged and rotten

^ I was gonna post but that last one was quite good.
 
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