greetings, i am going to tile a kitchen island top. i will be using 1/4
inch hardi backer board on top of 3/4 inch plywood. what is the best way
to secure the backer board to the plywood? should i glue it down and use
screws or just screws? what type of screw should i use? should i tape
the backerboard seams? finally, what depth trowel should i use for the
mastic and what profile, pointy or squared.
thanks, cj