A client has a room under the front concrete stairs and entrance to the house, this 8’x8′ cold room has water/moisture entering via the concrete roof. The concrete is covered with a 1″ irregular flag stone that will be removed. ANy proven methods to waterproof with some type of membrane, then install a natural stone or concrete finish.
George
Replies
Go to sanitred.com. I've used their products for lining a masonry fountain. Worked well. It is suitable for your use also.
Rich
Shower pan liner?
Ditra under the new stone?
Mike Hennessy
Pittsburgh, PA
Thank you
I thought of Ditra or Kerdi, I would think that Kerdi as a shower pan liner should work, Exterior?? frost?? If I put Kerdi down first with Thinset, Then Ditra over top with Thinset, Woud I be able to optain both water proof and crack residents??
George
Ditra will be waterproof, except for at the seams, and a better isolation membrane. You could maby use Kerdi strips just under the seams with at least 2" overlap. A call to Schluter may be worth the dime.
Mike HennessyPittsburgh, PA
Are you in a freeze/thaw area? that would affect any applied waterproofing and the finish on top of it.
It is in a Frost zone, Toronto, Ont.,