Ask Experts Questions for FREE Help !
Ask

Applying Redgard (waterproofing) to cement backer board

Asked Jan 29, 2008, 05:58 AM — 2 Answers
I have two questions. (1) Do I need to tape the seems on the cement backer board or should I use caulking? (2) If the seems need to be taped, do I apply the Redgard before or after I tape the seems on the cement backer board?

I will be applying slate over the top of the board to create a waterfall.

Thanks

Gregg

Search this Thread
Share |
2 Answers
glavine's Avatar
glavine Posts: 895, Reputation: 458
Senior Member
  
#2

Jan 29, 2008, 05:27 PM
You tape and mud over it. Let dry then apply redgard. Becarefull using that if there is an inspection. It won't be in the code book for a while and it may not pass. We've ran into it once before. We now use detra. But the redgard works well
Helpful
Schmidtler's Avatar
Schmidtler Posts: 26, Reputation: 1
New Member
  
#3

Jan 30, 2008, 05:44 AM
Thanks for the help.

Schmidt
Helpful
Not your question? Ask your question View similar questions
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Add your answer here.

Remove Text Formatting
 

Undo
Redo
  
Decrease Size
Increase Size
Bold
Italic
Underline
Align Left
Align Center
Align Right
Ordered List
Unordered List
Decrease Indent
Increase Indent
Insert Email Link
Wrap [QUOTE] tags around selected text
Wrap [CODE] tags around selected text
Wrap [HTML] tags around selected text
Wrap [PHP] tags around selected text
Wrap [YOUTUBE] tags around selected text
Notification Type:



Check out some similar questions!

Green board sheet rock VS cement board for show wall backing [ 2 Answers ]

I was wondering if the green sheet rock will do just as well as cement board for installing in a show that I'm planning on tiling?

Laying Backer Board [ 1 Answers ]

I am tiling my bathroom floor and there are some uneven areas. I had planned on laying a bed of thinset over the plywood subfloor and then lay down the backer board. Would it be feasible to put a little extra thinset in the uneven (low) area and then level out the backer board when I set it? ...

Is backer board needed under porcelain tile [ 1 Answers ]

I am installing porcelain tile in a 30 sq ftbathroom. Presently there is carpet on new plywood. No damage to the plywood. Do I need to install backerboard first or will the good plywood be OK without the backerboard?

Cement board [ 1 Answers ]

I plan on installing cement board behind a wood burning open stove on an outside deck. Do I need backing behing the cement board and can it be colored using high temp paint?

Can I Paint over Cement Board? [ 2 Answers ]

My husband and I are installing (or reinstalling, actually) a shower in the basement. I am tiling the walls and floor, but I don't want to tile the ceiling. Can we use some of the left-over cement backerboard for the ceiling and paint it? I'd rather use the cement board because of it's water...

View more Construction questions Search