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Unread 01-11-2020, 11:48 AM   #14
cx
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Join Date: Jul 2001
Location: Boerne, Texas
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Welcome, Rick.

You are correct about "a store" giving you incorrect information. The orange vest commonly knows nothing at all about the orange membranes.
Quote:
Originally Posted by Dan
Unmodified under Ditra is Schluter's guidance...
What Schluter actually recommends is a thinset mortar appropriate to the substrate, Dan. For installation over a wood framed floor, that would require a modified mortar meeting ANSI A118.11 as Jim points out in post #2. Over a concrete SOG floor, the unmodified mortar would be appropriate according to Herr Schluter.

My opinion; worth price charged.
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