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Discussion Starter · #1 ·
I'm putting 2 layers of 5/8 drywall on genie clips with hat channel.

My question is about the second layer that uses Green Glue:

I cannot find a clear answer for this but where do you put the screws on the second layer? Do they go on the hat channel again or do you just go for the first layer. Some (on the internet) say that putting them on the hat channel short-circuits the Green glue because it makes contact with the hat channel directly. From what I see in the few instructional videos around they do use the hat channel for the second layer.

Also:

If layers of drywall don't meet up on the hat channel (as was pointed out on another AVS thread on mounting drywall on hat channel ) then are there any tips or tricks to keeping them together (without backing board which isn't feasible in all situations)??

Thank you all.
 

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I asked the same question a while back and got the same answer.... Pretty sure I hit the hat channel with the majority of my second layer's screws. ceiling hasn't fallen down yet anyway:D
 
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