Tile weight on various surfaces

[The Legend; Phil Hobson RIP]

I am doing a job at the moment, seven toilet blocks in a college. The builder wanted me to tile over old 150mmx150mm wall tiles, using 600mmx300mm ceramics. The original tiles had been sprayed with Portafleck, then emulsioned.

I voiced my concerns to the builder saying "I can't put my name to this job", builder says "it will be fine". I jump up and down, trying to explain the dangers of this madness. Builder says I'm being paranoid, he has done it loads of times with no probs.

Only when the college engineer tells the builder this is bad practice, the builder realizes, I am right.

They are now mechanically fixing grounds to the existing tiles, then over boarding with plasterboard. The walls are cinder block, so taking off the tiles could destroy the blocks. Why would the builder not believe me:mad2:.

 

[jay]

I am doing a job at the moment, seven toilet blocks in a college. The builder wanted me to tile over old 150mmx150mm wall tiles, using 600mmx300mm ceramics. The original tiles had been sprayed with Portafleck, then emulsioned.

I voiced my concerns to the builder saying "I can't put my name to this job", builder says "it will be fine". I jump up and down, trying to explain the dangers of this madness. Builder says I'm being paranoid, he has done it loads of times with no probs.

Only when the college engineer tells the builder this is bad practice, the builder realizes, I am right.

They are now mechanically fixing grounds to the existing tiles, then over boarding with plasterboard. The walls are cinder block, so taking off the tiles could destroy the blocks. Why would the builder not believe me:mad2:.


Builders know everything

 

[Gazzer]

They are now mechanically fixing grounds to the existing tiles, then over boarding with plasterboard. The walls are cinder block, so taking off the tiles could destroy the blocks. Why would the builder not believe me:mad2:.

??????

The job I mentioned actually listened to me and they are now sorting it out with plasterboards. It took an email to contracts manager who actually agreed with me. He passed it on to the client who gave them the go ahead to sort it out....in my email was many links to this forum and the TTA.

Wonders will never cease...maybe they do actually listen.

 

[Perry]

No Neale it's must of been a bang on the head from a falling tile I am sure that's the only way a builder would listen lol

 

[JLM Tiling]

Started the next job for him today, get there and i discover that it's Plasterboard, layer of skim, painted, spot fixed tiles, another layer of tiles. I messed about for a few hours trying to think how to get round it and in the end I just packed up and went home. Wont be able to get hold of the contracts manager till monday morning to authorise the demolition and confirm that he'll pay me the extra and by then I wont have enough time to complete the job. Feel like I've been messed around a bit and fed up with it. Especially as I was on site yesterday from 7.30 am until 2.30 am to keep them on schedule. I'm a team player but the second I get messed about or lied to then you're on your own pal!!

 

[CBTC]

My advice ; where there are contract managers or engineers involved, point out it's a latent defect. If told to continue put it in writing.

 

[JLM Tiling]

Yeah I thought that originally but I figured that if something were to happen then it could obviously be proved that I knew it wad dangerous and continued anyway. Plus I don't wanna go home at night knowing I've done that. As soon as you start cutting corners and doing gash work it's a slippery slope

 

[aflemi]

I am doing an en-suite, 10mm thick 600x300 ceramic tiles onto partly painted very flat skim plaster on solid walls. Tiles + adh = 30kg psm
Is it ok to mechanically fix 6mm marmox to walls. Part of it will be tanked with Mapeigum.

 

[Rich]

Bang on

Just check what thickness Marmox recommend for walls tho.

 

[davebates]

hi guys , went to quote a job earlier, customer has bought tiles form wickes when they showed me i thought they were heavy after weighing a m2 they come to 18kg what weight would you allow for adhesive and grout ? . Walls are skimmed by the way so its going to be close to the weight limit ??

cheers