Replies

1. 
   JeffBuck | Jan 29, 2006 10:10am | #1

   if U got enough water up there to cause problems ...

   U got bigger problems!

    

   but ... I'd use either durobond, easy sand ... or thinset, and then skim coat the TSet with durobond or easy sand.

   That said ... CBU walls ... drywall ceiling.

   tile on the walls all the way up to the ceiling, right?

   me ... I'd simply caulk the top of the CBU to the ceiling. Nice fat bead ... then .. tile will cover it ... and another bead of grout caulk will seal the top of the tile to said drywall ceiling.

    

   no taping.

   Jeff

    

       Buck Construction

    Artistry In Carpentry

        Pittsburgh Pa

2. 
   EricPaulson | Jan 29, 2006 04:14pm | #2

   ............what Jeff Buck said.

   [email protected]

    

    

   It's Never Too Late To Become What You Might Have Been

    

    

    

3. 
   greggo | Jan 30, 2006 02:44am | #3

   Thanks Jeff,thanks Eric

   I thought it should be something better than regular compound

   Greg

   Lead,Follow,or Get the Hell Out of the Way!

1. 
   greggo | Jan 30, 2006 06:18pm | #8

   Thanks guys I appreciate all the replys

   GregLead,Follow,or Get the Hell Out of the Way!

4. 
   grayhawk | Jan 30, 2006 03:22am | #4

   Greg, I will tend to use my thinset mastic for all taping when using Durarock or a cement board.

1. 
   greggo | Jan 30, 2006 03:31am | #5

   Grayhawk:can it  still be used on the drywall to durock transition joint.

   Thanks GregLead,Follow,or Get the Hell Out of the Way!

1. 
   grayhawk | Jan 30, 2006 03:43am | #6

   Greggo, you can use the thinset mastic to transition to drywall.  Just feather it our, let it dry and if need be you can use drywall mud over the part that transitions to the drywall.

1. 
   bbqjason | Jan 30, 2006 04:16am | #7

   related to this topic, is it generally acceptable to use finished cbu for the ceiling?

   I did, was hardi with 2 coats oil primer, Lasco Siliconizer skim coat and then another application of same as knockdown, another coat primer, then two coats oil paint.  Corners got silicone.

   Seems to be holding up very well after two years. 

   Picking your brains, how would some of you finish cbu for a shower ceiling?  Would you even do it?

    

5. 
   DanH | Jan 30, 2006 06:26pm | #9

   I'd use some sort of setting-type compound everywhere within splash range of the shower. The drywall (ceiling) should be moisture-resistant. Humidity/splashing will soften ordinary premixed compound.

   Also, mix a fungicide in the paint for the ceiling, or use paint specifically designed for bathrooms.

   If ignorance is bliss why aren't more people

   happy?

1. 
   greggo | Jan 31, 2006 12:00am | #10

   Thanks DanLead,Follow,or Get the Hell Out of the Way!