Join Date: Jul 2007
Location: Windy Wyoming
Thanked 37 Times in 36 Posts
Rep Power: 9
Re: Recore Entire Deck
Neat-looking boat. The flush deck makes it resemble the SJ21 Mk2, Cal25, and Ensenada 20, with a little Dovekie tossed in. Personally, I ain't a fan of plywood as a core material. Neither flesh nor fowl. It's heavier than balsa without much more compressive strength. If water gets in -- even a drop -- it wicks sideways far worse than end-grain balsa. If you want pure compression resistance (like under the mast plate), I'd advise G10 or phenolic. You can make your own, if needed. Otherwise, balsa everywhere with properly over-filled penetrations.
Wet balsa can be dried, if it hasn't rotted; it takes a very long time. Foam is much quicker and easier to dry out & usually stays sound unless freeze-thaw has caused it to delaminate. Wet plywood is a total loss, always.
Have you pulled a portlight to see if the core runs down the coachroof sides? Often on these smaller boats, only the deck itself was cored, out to maybe 1" from the turn of the roof. That hull-to-deck joint looks in the photo like yer basic shoebox overlap, covered with a rubrail. Often the joint was just riveted or screwed together -- no putty, no glue, no nuffin. It is not unheard of for people to remove the entire deck for recoring, flipping it over in the yard.
Albin Ballad 30, Fionn