Over boarding ceiling, yay or nay?

I'm boarding out my mum's loft, it's the first job in a long list as she's renovating the whole house. Before I start I'd like to suss out what to do with the bedroom ceilings.

The bedroom ceilings are plasterboard but there's cracks on virtually every single joint (they're wallpapered as well). The loft joists are 4" deep and are spaced at 400mm centres. There's a lot of movement where boards meet and there's no noggins behind them to prevent movement.

So my options....

- Strip wallpaper on ceiling, fix a noggin behind every plasterboard join, secure with screws, then tape then cracks before skimming.

or

- Overboard the ceiling

Which would you say is the best option?, and when overboarding, should I use 9.5 and 12mm pb?

cheers

lids reboard tyhem best way use 12.5mm boards
running the ufer way from the rest 7" centers on the joists (screw points)
skrim and skim
as for the flex in the lids yer put in some nogging

Is he speaking Gaelic?

הלוח הלוח מכסים אותו פועל בכיוון ההפוך
קלטת המפרקים מכן הטיח בו שימוש לסיים טיח מכן
כן לשים כמה עצים בלופט
לך הזין

markwm said:

I'm boarding out my mum's loft,

Click to expand...

when you say boarding the loft, do you mean converting it into a room, or for light storage of christmas trees and things?

yea, just for storage, not a room.