[Bill from Indy]

im not going to say you cant.....but i have never got type x board to bend that way without breaking..you have to wet it down because of the fiberglass in the gyp.

if it is indeed spec'd for type x, you got to wet it...I would figure 2x your base rate personally and it would be really nice if it is framed 12" oc..i know your in b.c. and go metric, but my head can't do the conversion right now

if you can get away from it being regular drywall, I would use flex board and stagger your flats on 2nd layer...it will save you a lot of time in labor...both on finish and on hang..thats a lot of board to wet down and not risk breaking handing it up to the guy on the scaffold

 

[Bill from Indy]

Bill,

Where you using 1/2" type x that couldn't bend?

Yes, Joe it was 1/2...but the radius was tighter than 9 or 10ft...i would still wet it down though....the benefit of wetting regular drywall is you can use longer material whereas the flexboard is only 8ft...that ive seen anyways

The downside is that I have found that unless you wet it and tack it till maybe the next day, you have issues with screws popping....10ft radius/20ft diameter isn't a drastic curve though so it may not even need wet down.

the fiber adds strength and heat properties (im guessing).....but answer me this....has anyone ever seen drywall burn?....me, no...because by the time it burns I won't be there to watch it...lol