What is the best approach to board joints when using resilient bars in ceiling construction.

[MikeSharp01]

I am just putting the ceilings up where we are using resilient bars and wondered what the best approach would be A or B below.  The joints will be tapped but in A are you likely to get movement between the boards? In B you have only a very narrow space to place the screws.

 

[JamesP]

I did B, no movement or cracking. Taped and skimmed.

Lets ask the boss @nod

Edited Thursday at 09:07 by JamesP

[nod]

B

[MikeSharp01]

@JamesP & @nod thanks both.

 

 

[Dreadnaught]

Late to the game and after the boss has spoken… 😄 

 

"B" here too. 

 

Got it down to a fine art now. A few tips…

1. RB1, even not from BG, is a standard width. But I did notice some companies selling narrower resilient bar, which I avoid.
2. I mount the RB1 such that the first board going up is on the lefthand side as in your "B" image. This minimises the risk of the RB1 pushing away as you fix.
3. On that first board going up, the screws can be close to the board edge, risking cracking. To avoid this, I pilot drill those holes as I go (pilot drill in one hand, driver in the other). Got it down to a fine art now.

[alfaTom]

Also a late reply but we did B too. There's actually a decent amount of space to get a fix still, but you can always increase the number of screws for fixing if you're nervous.

The biggest recommendation I can make is to get your 2400mm distance from the first bar spot on even if it means moving that bar slightly so there is no faffing with board edges and cutting; caught me out the first time.