I have a 1969 16' Glasspar tri hull and I have torn up all the plywood and foam from the hull need to replace the foam but i am unsure if the foam i put back needs to structural or not curious if i could just pour it in place or if block foam would be better? also looking at the stringers they appear to be fiber glass.When i took the floor up there was 1 x 8 boards laying flat not on end on top of the foam tucked under the lip of the fiberglass stringers wondering what they where for? ANY help would be great thanks!
