Myths and Misunderstandings: Testing the water resistance of grout

[AliGage]

I'll take some pictures of the "luxury" shower in the house we rent. I'm damn sure there's no tanking and I have access under the block and beam floor, tiled directly on the blocks, and it's bone dry

What grout?

 

[The D]

I put it in the arms so we could debate and chat freely

 

[Dan]

Not sure I'll be around I'm on a course then.

 

[The D]

its ok the grout has to dry for seven days

 

[Spare Tool]

You could take the 2 week spread out course Dan, results should be in by then

 

[The D]

box is tiled and grouted corners are siliconed and it’s all ready to go i will fill it with water next saturday and the fun can begin


can we have a pole set up so people can say how long they think it will take starting at 30 minutes then within 24 hours then maybe two days then over a week

 

[Rizzle from the Portizzle]

its ok the grout has to dry for seven days

i cant think of one client in 35 years who has waited 7 days to use there shower after i have finished can any one in the real world .24 hours is the norm .

 

[The D]

only on domestic work. on site work it has weeks and weeks to dry but if you want me to do it after 24 hours i will

 

[Qwerty]

Added the pole @deanotile

May the voting commence

 

[Rizzle from the Portizzle]

only on domestic work. on site work it has weeks and weeks to dry but if you want me to do it after 24 hours i will

hi dean no offence ment. on site work i would agree all day long but with b&q being the biggest tile retailer in the uk with tops next tile giant and so on i think you will get the picture .95% of tile failure in the uk has nohink to do with real tilers.

 

[Rizzle from the Portizzle]

box is tiled and grouted corners are siliconed and it’s all ready to go i will fill it with water next saturday and the fun can begin


can we have a pole set up so people can say how long they think it will take starting at 30 minutes then within 24 hours then maybe two days then over a week

hi dean how big is the box L X D X H each litre of water weighs 1kg what size are the tiles used grout joints .what grout have you used .looking forward to your finding the best tilers will all ways question and look for there own answers .well done for showing others how to back up what they are told and say

 

[Spare Tool]

Omgood god the guys just tiled a card board box Ray...real tilers can tile a box but are intrigued by the results, get a grip mate this is just a grout and sealing experiment..

 

[Dan]

Tickles me these "experiments", I love 'em.

 

[The D]

Your

Tickles me these "experiments", I love 'em.[

hi dean how big is the box L X D X H each litre of water weighs 1kg what size are the tiles used grout joints .what grout have you used .looking forward to your finding the best tilers will all ways question and look for there own answers .well done for showing others how to back up what they are told and say

 

[Dan]

Must be honest, I was expecting more grout. Just one grout line? Sure the water that will get through is going to dissipate and probably never even get chance to touch the cardboard?

I was hoping 6x6 or mosaics or something?

 

[The D]

the water will not have a chance to dissipate there is only one way for the water to go and that will be the path of least resistance the rest of the box is impervious.

 

[WetSaw]

What grout?

Absolutely no idea but I'd bet my left testicle that it was either some he ( my landlord) had laying around or the cheapest he could find.
I've made an album which also shows underneath but I'm too thick to be able to link to it..

 

[andy8758]

A big vote of personal thanks from me to Dean for this thread.

I am a die hard tanker! But with a mere 8 years in the trade my thinking has been formed by an awful lot of "industry" instruction. I like to see conventional thinking challenged and real time testing is the best way of doing this.

Remember reading tests done by someone on here to challenge the convention of always using insulation board with underfloor heating. That was an excellent thread too - first time I could fully se the practice supporting the theory.

Dean is also right to keep this discussion in the Arms. I don't mind how the test pans out, I welcome seeing the evidence of how water "proof" grout really is. There are an awful lot of unwaterproof walls supporting tiles in showers, and repairing rotten walls in untanked showers has made me a lot of money in the last few years.

I think posts like this make it worth being a member of this Forum.

 

[Dan]

the water will not have a chance to dissipate there is only one way for the water to go and that will be the path of least resistance the rest of the box is impervious.

Yeah I just can see how one grout line is going to allow enough water through to penetrate the cardboard.

It'll end up evaporating out before its managed to soak through the grout. And what does soak through the grout will disperse amongst the adhesive and not really effect the cardboard.

I've been diddled.

Do one with mosaics.

 

[Dan]

Remember reading tests done by someone on here to challenge the convention of always using insulation board with underfloor heating. That was an excellent thread too - first time I could fully se the practice supporting the theory.

Can you find me that thread by any chance? We have a new tests forum category I'd like to move it to.

 

[The D]

You

Yeah I just can see how one grout line is going to allow enough water through to penetrate the cardboard.

It'll end up evaporating out before its managed to soak through the grout. And what does soak through the grout will disperse amongst the adhesive and not really effect the cardboard.

I've been diddled.

Do one with mosaics.

your talking rubbish again dan lol

 

[Dan]

You

your talking rubbish again dan lol

Come on do a good test with more grout.

 

[The D]

If

Come on do a good test with more grout.

the results don't go in your favour I will do the same test with a mosaic base to it

 

[Dan]

If

the results don't go in your favour I will do the same test with a mosaic base to it

Could do with one replicating an actual wet room shower. Albeit on a small scale. So mosaic floor with a more course floor grout. 20 or so joints. Then wall grout on the sides with mosaics.

It's what I was expecting to be fair. Thought you'd have done something akin to that from the off.

Fair play for doing it though pal. Most people wouldn't give such a toss.

 

[Dan]

Note I've voted 2 weeks to a month.

Can't see the water ever touching the cardboard with that setup.

 

[Dan]

Want see some water penetrating floor grout?

Help! Tiled wetroom floor looks perfect but grout doesn't dry out! | Page 4

 

[The D]

ok water is in and timer is on


dan you will have to like it or lump it m8 when the water passes through the grout it will show on the box this is about how long the grout will resist the water it does not matter if there is one joint or one hundred joints

 

[The D]

ok water is in and timer is on


dan you will have to like it or lump it m8 when the water passes through the grout it will show on the box this is about how long the grout will resist the water it does not matter if there is one joint or one hundred joints

 

[Dan]

I'm ******** a brick now in case the world implodes and I'm not right in a thread on a forum about tiles.

Might need to nip back the pub to deal with this like a man.

 

[The D]

I'm ******** a brick now in case the world implodes and I'm not right in a thread on a forum about tiles.

Might need to nip back the pub to deal with this like a man.

wow what a good post makes you look sooooooo cool