Where does the most water damage in
the bathroom floor happen? Look at the arrows. This area seems to
suffer the most as water leaks over time from the top of the shower dam
on to the floor. The water also comes from the seal on the bottom of the
door becoming damaged over time which in turn starts to let water leak
out of the shower on to the floor in this area.
How do I solve this problem? By putting a piece of water proofing not
water resistant paper or membrane in front of the shower dam.