Myths and Misunderstandings: Testing the water resistance of grout

[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