Repairing a leaking En-suite

naughtysmurf

I posted about my situation in the Plumbing & heating section but posting here too in the hope of some advice

So en-suite leaked due to little or no sealing of the shower tray & poor tiling, the ceiling downstairs is also stained

I’ve removed all the tiles as I found that 20cm of the plasterboard above the shower tray has been damaged by water ingress, there was no classic seal on the shower tray & all the tiles came off very easily

So my plan is as follows, if anything wrong with the following let me know, all advice is welcome, thanks

Cut out the damaged/stained portion of ceiling to allow access to the shower trap & remove the shower tray, I’d rather not cause any damage to to floor tiles that meet the shower tray if possible

Remove shower tray & completely clean & remove any silicone residue etc

Remove & replace all damaged plasterboard in en-suite, I’ll come well above the damaged section

Buy & apply a tanking kit to en-suite drywall’s & the one block wall side

Reinstall the shower tray with classic seal attached

Reconnect a new trap & waste from below & verify that the trap & waste is not leaking

Re tile

Repair ceiling downstairs

I have a good tiler lined up but the general guntering I’ll do myself but I’ve no knowledge of plasterboard, will maybe need a hand with this, or what if anything I should do as regards joints or where the plasterboard meets the block wall

Thank again

youtheman

I had a similar problem. Forget about the Classic Seal, not as the main barrier anyway. You need to 'tank' your shower by putting a waterproof membrane under the shower and as far up the walls as you can go. System I used was basically fiberglass (done by specialist contractor). Then you never have to worry about grout, seal etc.

hesker

+1 to the above. There are other types of tanking systems also, membranes etc

Have you checked your timber studs. Should make sure there is no rot before closing all up. Maybe get a dehumidifier in there also

luckypenguin

Good tips. found an answer for myself. thank you.

listermint

youtheman wrote: »

I had a similar problem. Forget about the Classic Seal, not as the main barrier anyway. You need to 'tank' your shower by putting a waterproof membrane under the shower and as far up the walls as you can go. System I used was basically fiberglass (done by specialist contractor). Then you never have to worry about grout, seal etc.

Not true unless theyve firmly checked the joists beneath shifting or compression in joints can crack any tanking system .

Addition noggins under the shower area before tanking its the most foolproof method .

randombar

I had a very similar issue myself, went with fibreglass too that's actually moulded into the shower tray. Rock solid the last couple of years. Two showers done, one more to do.