Ok I have gutted my 9x8 bathroom months ago and have the old tub area walls down to the studs. Removed and disposed of the old tub surround and the molded sheetrock.
I recently bought several sheets of the Permabase cement board for the new tub/shower area and the mold-resistant drywall for the remaining walls. What I plan to do is:
I have a roll of 15lb. roofing felt that I can attach to the studs before putting on the cement board. I have the special cement board screws to screw it in to the studs. My question is, my tub I believe is a cast iron tub which is virtually impossible to move due to the weight. Would the cementboard be overlapped over the front of the flange and raised about 1/4" from the tub surface? From what I have been reading so far, this area will be caulked once the tile is in place.
Since the CB's come in 3x5 sheets, will I have to cut custom sizes to fill in the leftover wall space what isn't completely covered?
And since I do plan to put in ceramic tile on the CB, would it be best to install the tile up to the ceiling?
I know I will need some fiberglass tape and thinset (?) to fill in the joints between the CB.
I have recently installed a new tub/shower faucet and redid the plumbing myself for it (my area does not require permits nor inspections). I know I will have to score the holes out for the handles and showerhead, but what is the best way to accurately cut these holes out to ensure that it fits properly when the CB is put in place? I have one pic showing what I mean. The handles on the faucet was put on temporarily to test the faucet/shower for leaks.
Thanks for any help!