I've got a builder we do a fair amount of work for who has let his client purchase his own tile and we are quoting the labour to install it. The issue is that the tile is 18" x 18" Carrara Marble.
We typically use Ditra on most of our tile jobs but in this case we are trying to end up with a height similar to 3/4" hardwood and Schluter techs would like us to use 3/8" plywood over 1/2" plywood over the sub-floor (which puts it out of the picture.)
The home owner wants us to use a product called Densshield. I've had some customers in the past complain that the Densshield had rotted out/broken down in wet areas and of course this job includes a laundry room, shower enclosure, and a few bathrooms.
I've spoken to Denshield Tech Support and they suggest that the product is definitely appropriate for these applications with the tile specified above. My question, to the other pros on here, is have you worked with Densshield and what have those experiences been during and post installation?