Public Thread!: Poor Tiling Workmanship by DIY and Rogue Traders

[Andy Rhodes]

Obviously went to the ACME college of building with that statement & Elmer Fudd was his tutor

 

[Dumbo]

Again, tiles must be faulty because they have cracked in 5 months of installation.

Few emails later getting the fitters method statement.

No, they have cracks because your "professional bathroom fitter" (turns out he's a general builder) has tiled a shower, without tanking, onto plywood!
View attachment 106794 View attachment 106795 View attachment 106796

Waiting for further images when the tiles are taken down.... or fall off!

EDIT: Exact reply from the builder:
"Your bathroom hasn’t been tanked, nor does it need to be, it’s not a wet room, we have used 18mm marine ply as a base, screwed in every 6 inches with 40mm wood screws, flexible adhesive (Mapai)

Flexible grout (mapai), corners and joints have been sealed with dowsil 791 flexible translucent Silicon before application of adhesive, we used a 6mm notched trowel."

What about the one at the bottom that doesn't want to be attached to wall anymore , is that faulty too because it hasn't stuck .

 

[J Sid]

like to see the receipt for the marine ply

 

[Dumbo]

like to see the receipt for the marine ply

Yes wpb at most or whatever they call it nowadays

 

[Tile Shop]

What about the one at the bottom that doesn't want to be attached to wall anymore , is that faulty too because it hasn't stuck .

I guess it must be. Better get in touch with the factory and tell them to stop making tiles as an issue has been spotted by a builder. She has 5 more like that dotted around the base that she hasn't sent photos of. I've told her it should be condemned on safety grounds and there is no fix other than a full rebuild of the cubicle. Strangely enough, still not had any response from her or the builder yet.

As for marine ply or WPB, these days that don't mean shi....taki mushrooms. Wood + Water = Pop. Plain and simple. They haven't removed it from the standards for no reason.

 

[LM]

 

[Andy Rhodes]

Morning all
remember what was said regarding tiling on plywood.
One of my students was asking about why we use SBR & Acrylic primers instead of PVA so as i always confuse the the wording with SBR they googled it underneath the quote below these were a couple of the questions there.
SBR Bonding Agent. Construction Chemicals SBR is a white styrene butadiene co-polymer used to improve the properties of cement renders, screeds and mortars. Itis also used in conjunction with Construction Chemicals Tanking Slurry as a priming coat or tight render base coat.
Can you tile on plywood wall?
Can I Tile to Plywood on a Wall? While some types of plywood can be used in certain types of tile installations, use of the material has limitations. ... For wall installations, your real concerns are whether you want to use thin set directly on the wood and whether you are using an exterior or interior type of plywood.
Do I need to prime plywood before tiling?
The plywood surface will then be the surface to be tiled. ... So your nice new clean ply floor isn't so clean anymore and if it's not prepared properly prior to tiling, the adhesive will just go onto the dirt on the floor and might not stick! This is why it is better to prime it than not to

 

[Qwerty]

What's the relevance of all the bold words?

 

[One Day]

What's the relevance of all the bold words?

He's a big ogre.
They shout a lot?

 

[Andy Rhodes]

No relevance it's how it cut & pasted off the Google sorry ,& have you been talking to the wife because that's what she says I shout a lot