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Unread 12-28-2021, 05:27 PM   #1
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Ditra before drywall

I have a curbless Kerdi shower I built and would like to waterproof test up to the ditra before I drywall the room below. The only issue is, I also cannot drywall/tile the whole room for a while. New siding is being installed and it may puncture pipes in the walls due to the nail lengths required for our wind zone. How can I protect the ditra so it doesn't get damaged and can have people use ladders and walk on it over the next few months? Can I cover it with ram board? Can I Prefill it and leave it for months? Does schluter allow this?
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Unread 12-28-2021, 06:12 PM   #2
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I would strongly recommend you not install the Ditra until the drywall work in the room is finished, Spencer.

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Unread 12-28-2021, 06:31 PM   #3
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I would have to agree. It has to do with point loads on Ditra. While filled and covered with tile, point loads are spread out over whatever the tile size is. When unfilled and not covered with something rigid, those little channels that are dovetailed and only 1/8" high will be crushed underneath say, the feet of a ladder.

If you had something really good and flat, and rigid, it might work. But do you really want to go to the trouble and expense just to cover the floor and save maybe a day's work down the road?

The top ten reasons to procrastinate:

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Unread 12-28-2021, 09:55 PM   #4
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Thanks everyone. You confirmed what I thought.
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