Lath and plaster walls

li-marie

Hi guys, I am starting to renovate my teeny tiny (135 X 220cm) bathroom, which had 2 layers of tiles over lath and plaster walls, as the tiles come off unsurprisingly so does the plaster. So far the laths seem relatively ok with just the odd loose ones. I need to know the best way to proceed - do I just get it replastered, then retile or should I replace the laths with plasterboard, and if I do will I gain any much needed centimetres. The gap behind the laths is 8.5 cm and I would like to reclaim as much as possible as even 5cm in a bathroom this small really counts.
Thanks in advance for any help and advice.

Doozergirl

Replace the lathes.

You can use plaster board and skim but if it's being tiled, I'd use 6mm Hardiebacker board. Not cheap, but it will give you a few mm and you'll save on skimming as you tile straight to it.

andyhop

Unless your going for stone then 12mm SE plasterboard is more than ample. Tank with membrane or a paint on kit and you will still have change over using hardibacker. 6mm hardi is for floors and on a 400mm timber span for walls isn't sufficient

Don't skim the plasterboard if your tiling your just reducing its weight limit and costing yourself money

kinger101

I'd use aquaboard or a similar cement-based boardd. Much better than standard plasterboard for tiling.

andyhop

kinger101 wrote: »

I'd use aquaboard or a similar cement-based boardd. Much better than standard plasterboard for tiling.

You still have to tape the joints to seal.... A homeluxe membrane is in my opinion more fail safe and cheaper than cement board ....that and your lungs aren't breathing in cancer causing silica when your cutting it

Smiley_Dan

Any external walls? If so, make sure they are sealed with a parge coat before putting any board on. Worst case, use continuous ribbons of adhesive. Brick/block work is not air tight.