2003 Catalina 36 MK11 moisture in the stringers

[Steve V]

Looking for feedback on any common issues with moisture in the stringers of a 2003 Catalina MK11 - readings range from low moderate to lower end of high on an electrophysics meter. In addition, there are small cracks in the stringer gel where the hull curves down to the keel bolts. Thoughts?

 

[dlochner]

What is in the core of the stringers, wood or foam? The strength of the stringer is in the fiberglass skin not the core.

Are there limber holes in the stringers? Are they sealed?

 

[Steve V]

The core of the stringers are wood. I have drilled one out in the center upper area of the stringer. The wood is moist, firm with no rot. The glass appears to ~ 3/8 thick or so. The limber holes are present but the gel has cracked around each . I will attach some pictures on the weekend to better demonstrate what I've described. Thanks

 

[dlochner]

The glass is providing the strength, at ⅜" per side that is ¾" of glass for each stringer. At this point I wouldn't worry too much. Sealing the cracks around the limber holes won't hurt. Keeping the bilge as dry as possible will also help.