Re: NO FOAM PROBLEM?
2MAD, all you need to do is use a 2 inch holesaw, cut holes every 2 feet or so between all stringers (depending on how many voids you are foaming-I am a big fan of leaving center bilge open). Elevate bow as high as possible. Mix and pour 2 cups (1 each part) of 2 part foam, pour into holes closest to transom. As foam rises to the hole, take the plug that was cut out with the holesaw and set it in the hole, place a brick or other weight on it to keep the plug from comeing out. Move on to next hole, repeat. Work your way from transom to bow, one stringer void at a time. Monitor your hull underneath, make sure it is not bulging. Take your time, make sure each mixed batch fully expands before pouring next batch. Raising the bow as high as possible allows the foam to expand while settling to its lowest point yet still expanding towards the bow. This ensure that the entire void ends up full, with no voids, and no bulging or distortion. If you do the pour with the boat level, you will not fill the entire void, you will just end up with foam mountains under the floor with large voids in between. Once you are done, you can 'glass the plugs in with a patch of mat or cloth, lay carpet, be done with it.
The main reason most boats have foam is so they don't sink completely, and can be recovered. It will also keep water from collecting in certain areas that would start to rot, but then again, when the foam gets old it can do the opposite - hold in the moisture and cause more rot.
