WE have a jaquzzi tub, it was here when we bought the house. The brand name
is novi, we have aproblem with the caulk bead retreating from the tub when
filled with water. I can caulk it and it will last for about a month then it
will start to peel away thus allowing water to get behind it then trickle
down to the kitchen ceiling. WE are renovating the kitchen (read toilet
supply rupture thread) and while I have great access to the bottom of the
tub I thought maybe I should look into this fix. As I looked at how the tub
is sitting, first there is the t/g floor boards, then a layer of what looks
like cement then a piece of plywood, a piece of styrofoam another piece of
OSB. All this looks like it is attached to the bottom of the tub with the
same resin that was applied to the underside of the tub. Is this normal or
is only the OSB attached at the factory to the tub as a platform. What I am
thinking is that the styrofoam is compressing causing the cualk to separate.

Any ideas before I hang the new ceiling?

SD