waterproof a flagstone deck

by Michael
(Greer, South Carolina)

I have a flagstone deck that was installed over a a concrete floor base which was coated with a waterproof membrane.

The deck leaks out weep holes which emit a white chalky substance which cannot be removed.

Is there a product that will "waterproof" the deck?

Comments for
waterproof a flagstone deck

Click here to add your own comments

flagstone roof / patio with walking traffic NEW
by: Anonymous

Hi

I have flagstone in my back yard mainly walkways. I have a deck that has storage below whch is actually an extension of my basement. I would like to finish the top of the deck with flagstone but I'm not sure what to use as a underlayment to water proof the deck and not get leakage below in the storage area (extension of basement). Currently the deck has nothing but 3/4 inch plywood. What should go on top of the the bare 3/4 inch plywood, before I finish with flagstone and motar.

efflorescence
by: Michael

Dear Michael,

Efflorescence is coming out from the concrete. You can remove it using a product called SureKlean from Prosoco. You should call them for details at 1-800-255-4255. They can also recommend a good sealer for your deck.

Great luck!

David

Click here to add your own comments

Join in and write your own page! It's easy to do. How?
Simply click here to return to Flagstone Question

Click the Google Button
Below if You like this Site!

[?] Subscribe To This Site

Click the picture below to see examples of people laying their own stone. Sign up for my free newsletter to the left and I'll put your flagstone creation in my newsletter.

Pictures of Projects