Foam Question

[Phan000]

I am in the process of rebulilding my deck, and have grinded, chisled and scraped out all of the old balsa core.

I left the bottom layer of glass mostly intact so that the new wood has something to bond to. Most of the bottom glass is well supported by stringer and foam underneath, but in a couple of spots the foam is several inches below the glass causing it to flex.

[image]ttp://i3.photobucket.com/albums/y54/Phan000/P1010027.jpg[/image] Should I cut all of these spots out and pour in new foam, or just drill holes and pour foam in that way?

[Chaos]

if you install the new plywood by using an epoxy/ cabosil mix to bond it to the existing glass and then glass over the plywood to the existing deck you should be fine

[joseeli8797]

Also remember the foam is for safety the stringer is actualy hollow dont worry about it.

[strick]

Your sig says you have a master angler but the boat in the pic's is a 20sf. Was your fuel tank above or below the deck? There is a reason I'm asking. You asked about pouring foam under the thin glass skin that you have now. If your fuel tank is under the deck then make sure you dont pour foam in that area or it may raise the tank. If you decide to pour foam make sure you drill lots of 2 inch holes for the foam to expand upward so it does not buckle the skin upward.

Now that I've said all that I'm going to tell you that the best way to fix your rotten deck is to completely remove everything exposing the stringers. Leave a 2 inch lip of your existing deck around the perimeter for the new deck to sit on top of. You will have to raise the stringers slightly as well. Go to Hermco's web site and see how he did his boat.

Here is a pic of what my boat looked like under the removed deck. The foam was sparse and randomly poured. Good luck.



strick