stupid - and too tired to boot

[alexbartman]

just done some tiling in the bathroom on a new shelf I made fro

plasterboard... the room doesn't get too humid...so I took the risk o using pasterboard whioch I will seal with silicone - and I know tha most people would take issue but I had plasterboard left over and it so easy to use!

So last night at c. 2am SWMBO insisted I tile so the bathroom can b used finally. In my tired state - I plain forgot to seal th plasterboard with PVA. Woke this morning with that horrible feelin that I had forgotten something...and now it is playing on my mind.

Should I be worried? Shall i rip down the (mosaic) tiling (v painful or will a good go with grout and silicone keep the tiles on the shel (horizontal and vertical surface).

Can someone reassure me so I can sleep tonight!!!!

-- alexbartman

[Jeff]

I wouldn't think it will be a problem, when I built a stud wall to make my shower, I used aquaboard on the inside and plasterboard on the outside (bath side) both sides are tiled and there have been no probs for over 2 years

Regards Jeff

[Andrew Gabriel]

I can't think what sealing the plasterboard with PVA would achieve anyway. PVA isn't waterproof, and plasterboard doesn't have any problems with dusty surfaces which need bonding to prevent pulling away. (There are plasterboard tanking sealers which are used in showers.)

I would suggest adding a grout plasticiser/waterproofer to the grout mix (such as BAL Admix GT1), or using a resin grout (which I haven't tried, but is more waterproof and cleanable). This is nothing to do with not having PVA'ed the plasterboard -- I would suggest this anyway.

[srp]

ive got pasterboard on my shower wall and it seems fine ( I used waterproof tile cement i think ), I had to replace it because it was all rotted out.. but that was only because the bath was not sealed in properly.. but that is another story.