Pearson 365 and 367

Pearson 365 and 367 => Pearson General Non-Mechanical System Maintenance and Repair => Topic started by: p424owner on September 18, 2009, 12:52:47 AM

Title: Cabin Roof Bowing In
Post by: p424owner on September 18, 2009, 12:52:47 AM
Strenue, my renamed ketch, is on the hard, and will be for the winter. I have stripped off all her deck hardware to fill every hole in her core with epoxy. It has taken me some time to get to this point, and during the course of this period, my roof has begun to bow in above the galley. NOT GOOD.

Has anyone had a problem with this? I am not especially keen on cluttering up the galley with a supporting pillar, unless I have to.
Title: Re: Cabin Roof Bowing In
Post by: ishmael on September 18, 2009, 07:26:28 AM
Ouch!  Did you notice the condition of the core when you were removing the deck hardware?  My first guess is that you may have de-lamination of the core in your cabin roof.  I hope I'm wrong because repairing this is a major undertaking.  I recently found some small patches of rotted core on Matchmaker.  Luckily the ones I've found so far have been fixable by digging out the rot and injecting thickened epoxy.  There are several good article on repairing deck de-lamination on the web.  Good luck and hopefully I'm completely wrong on this.

Ron
S/V Matchmaker
Saint Marks Florida
Title: Re: Cabin Roof Bowing In
Post by: p424owner on September 18, 2009, 08:39:15 AM
Actually, I have tested the roof with a hammer, and it sounds good.

When I pulled the hand rails, I found only a little rot, around the base of the rails. I am not sure if it is delaminating - but I will check. This all started when I removed the sea hood (and the reinforcing bar) and the portlights, and the hatches, so I think it may be related to that, as opposed to the more significant issue.

I see one of the new photos on the site actually has a post in the galley to support the shelving.

Title: Re: Cabin Roof Bowing In
Post by: Snboard976 on September 18, 2009, 10:45:38 PM
I have some flex in the cabin roof above the ice box.  The flex is only noticeable when I jump up and down in that area.  I pointed it out to my surveyor and he sounded it out and used a moisture meter.  His conclusion was that it flexed because the cabin top was unsupported in that area.  I posted the same concern on this forum a while ago, and somebody said that they noticed the same thing.
Title: Re: Cabin Roof Bowing In
Post by: p424owner on September 28, 2009, 11:05:22 AM
Since my original post, I have added some reinforcement to the portlights in the form of 6mm marine ply to extend the cabin sides. This has reduced the bowing significantly - replacing the brace will likely improve the cabin top strength further.

Ewan