Temporary support nails in beef up strips??

Hello All, I have a very simple, and I'm afraid silly question... :oops: In Rod's book on page 67 there is a picture of 1, 2 and 3 layers of sheetrock as beef-up strips between floor (studio ceiling) joists. On the bottom of page 66, he says to "hold it (the sheetrock) in place temporarily with some finish 4d nails, and caulk all the edges." I am planning to use 2 layers of sheetrock for beef-up. Initially I was assuming that after the caulk dried, I could remove the nails prior to installing the second layer, but the picture on page 67 makes me wonder if I should leave the nails in place, maybe tapping them flat against the sheetrock before installing the second layer. It's a little hard for me to believe that acoustic caulk will hold the first layer of sheetrock in place, while I get the next layer in place, without the nails to help. On the other hand, I certainly don't want the nails to provide some type of flanking path that I don't understand. The caulk likely has more gripping power than I give it credit for. By the way, I hope to be WAY better at caulking by the time I get done with this project then I am now! As I said, a simple question, do I remove the nails or sheetrock over them? Thanks for your help, and after I get the final word from the structural engineer on how many total layers of sheetrock I can do on the ceiling I'll try to start journaling my progress on a construction thread.

Use the finishing nails to temporarily hold each strip of drywall "beef" in place, but use "cleats" (I believe Rod referred to them as "ledgers") -- strips of wood, maybe 5/8" x 1" or 5/8" x 1 1/2", firmly against the drywall strips and screwed to the joists. There is no need to remove the finishing nails. That's how I understand it. I did my beef-up work differently, but that's in part due to the fact that Rod's book hadn't been published by the time I did that part of my project. --Keith :mrgreen:

Thanks a bunch Keith. I'll feel much better proceeding that way having heard that from you. Better to ask a stupid question than make a stupid mistake. I'll likely have more stupid questions as I proceed. Thanks so much.