Kerdi over mortar bed?

[bunt]

I have an irregular shower and was wondering if anyone has ever floated a mortar bed, then used kerdi over it for water proofing? If so, Did you integrate the kerdi drain. I would like to float the bed an use the kerdi, but would like to hear from someone who has done it.

[jgleason]

Hi Larry, It's done all the time. Check out the link in my signature, my shower thread has a few pics of the mud pan and Kerdi Drain. It's pretty easy to do.

[trecile]

Before they came out with the Kerdi tray that is how all Kerdi shower were done.

[bunt]

thanks........... a picture is worth a thousand words

[John Bridge]

Hi Larry,

Trust me, the sale will not set me free, but I think you need The Kerdi Shower Book.

[bunt]

Actually I bought the kerdi book about a year ago when I did the last shower.
Great book! This particular shower I will not be using a presloped pan, but will be doing a mud bed myself. I just found the book last nite and started going thru it. I planned on using a kerdi drain, but my plumber already installed a standard drain. (this is new construction.) The drain is circular and it looks like the hgt can be adjusted by turning it in and out of the threads. Should I take out this drain and use the kerdi drain instead? I did not see anything in the kerdi book about using kerdi with a standard type of drain. Also seems like it would be more work cutting the tiles for a circular drain

[jgleason]

Hi Larry,

There is a method where you can use a standard drain with Kerdi but I would recommend against it. Use the Kerdi Drain, it's pretty easy to cut the old drain off and install the Kerdi one in its place. Look in the Liberry for a picture showing typical dimensions/heights for the riser pipe. the square drain is a breeze to tile around too, especially if you go with 2x2 tiles.

[jgleason]

Here's a link that will help with the Kerdi Drain - http://www.johnbridge.com/vbulletin/...ad.php?t=28637

[John Bridge]

Amen, amen. Get the Kerdi-drain.