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Unread 12-31-2021, 09:00 PM   #2
cx
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Join Date: Jul 2001
Location: Boerne, Texas
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Welcome back, Christopher.

Reasonably increased dead load on the joist structure is seldom the limiting factor in engineered floor such as you have. And it appears that the joists are not separated over that support beam. Is that the case?

My first recommendation would be that you eliminate the purple material and use plain white (or gray, actually) gypsum drywall if you plan to attach Kerdi membrane.

As to your first question, when you hit about 75 you'll begin to understand.

As to your second question, what is the spacing between your joists?

My opinion; worth price charged.
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