Can I use dri-deck over a below grade concrete floor and place a isolation membrane over that and then ceramic tile on top. How do I attach the dri-deck? do I need to plce plastic under it all?Do I glue the dri-deck together? Can I use the dri-deck plastic shims to level it ?Quite a large area 200 sq. ft. total. Would it be easier,cheaper to just use treated plywood? Got a better system to offer? Thanks in advance for your help.
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Greetings steve, Welcome to Breaktime.
This post, in response to your question, will bump the thread through the 'recent discussion' listing again.
Perhaps it will catch someones attention that can help you with advice.
Cheers
'Nemo me impune lacesset'
No one will provoke me with impunity
interresting question.
my first thot ... shoot off an email to http://www.schluter.com/english/products/2002/sectionf/ditra/601-index.html
and see what they say. Ditra would be the ideal uncoupling membrane to apply ... if it would work.
What's the need for the DriDeck? I know what it is ... just never worked with the material before so I can't offer an educated opinion one way or the other.
U mention using treated ply as an option ... if Ditra enters the equation ... U can probably skip that step ... again ... depends on any existing problems.
if the floor has no moisture problems ... and is just uneven ... pouring a self leveling compound with ditra on top would be fairly bulletproof.
But I'm thinking there's some moisture Q's with the mention of the drycore.
Not sure how that's gonna figure into the equation.
Jeff
Buck Construction
Artistry In Carpentry
Pittsburgh Pa
I also forgot to mention that there is a lot of glue residue from old tile that I removed. I know what you are thinking about the old tile,asbestos,probably true and a health hazard. I followed basic precautions during removal. Most of it was loose just sitting there under indoor outdoor carpet. The entire floor is completely black and I don't want to scrape or do anything to stir up this mess into the air. I have to make substantial mods to the plumbing and so quite a bit is going to get removed anyway when I cut the floor for new piping. The slope of the floor is aprox 3" but mostly right around 2 drains. I have looked at the floor leveling compounds but they are quite expensive and I think I need quite a bit to do the job. I picked up the product you mentioned and have spoken to the local rep but his knowledge seems limited to just a basic installation. I had planned to use the membrane but I am not sure how much leveling compound I can safely build up and will it stick to the mess I already have there. It is already going to be quite a big job hauling the broken concrete and hand mixing the replacement mat. I was just thinking to cheat a little and cover the whole thing with the drydeck and avoid the leveling mat. your idea to contact the membrane company is good and I will do that for sure. I really don't want to lose any height at all because you already know there is a short ceiling height to work with. Thanks for the reply.