I've searched this form for the last year on the subject matter of vapor barriers & cement board installation for a 3 wall alcove tub installation & still can not find answers to the following questions:
1) It is stated to run the vapor barrier over the tub flange (meaning tub side, not wall side). What about the wall surface that the height of the tub covers? No vapor barrier there?
2) Use either felt or plastic. If you use plastic, what mil thickness? BTW, which is better, felt or plastic?
3) Shim studs to be plumb. How exactly? A continous shim, the length of the stud, unless tapered is going to follow the stud. So, how is this done & with what?
4) What cement board thickness should be used, if you are going to eventually meet with 1/2" drywall & you want a flush cementboard to drywall joint?
5) Does it matter if the last column or row of tiles slightly canaliver off the cementboard onto the drywall?
Specific guidance would be appreciated.
Thanks, FJK
1) It is stated to run the vapor barrier over the tub flange (meaning tub side, not wall side). What about the wall surface that the height of the tub covers? No vapor barrier there?
2) Use either felt or plastic. If you use plastic, what mil thickness? BTW, which is better, felt or plastic?
3) Shim studs to be plumb. How exactly? A continous shim, the length of the stud, unless tapered is going to follow the stud. So, how is this done & with what?
4) What cement board thickness should be used, if you are going to eventually meet with 1/2" drywall & you want a flush cementboard to drywall joint?
5) Does it matter if the last column or row of tiles slightly canaliver off the cementboard onto the drywall?
Specific guidance would be appreciated.
Thanks, FJK