Jura limestone appears to be rusting over time

[mreeves]

Looks like it is in the stone. Do you have more pics ?

More photos here (I did post these extra pic earlier but the post seems to have got stuck in moderation or something as it never appeared)

 

[mreeves]

How high is the humidity level in the house? Has the heat in the home been turned on? It appears to be iron in the stone rusting from moisture. It may be possible that the stone had not dried out enough before applying sealer. Some of the rust may be removed with Iron Out but as long as the home is humid it will return unless well sealed with a good penetrating sealer but after the surface rust is removed and the stone has dried out well.

Not sure about the humidity level in the house to be honest. Underfloor heating was on for a long period before tiling and has I believe been on at times since.

 

[The D]

You've lost me - did you mean to post this to a different thread?

No it is to you. You have a problem in your bathrooms I think you need to get the marmox rep out and show him the installation pictures and see what he thinks

 

[mreeves]

No it is to you. You have a problem in your bathrooms I think you need to get the marmox rep out and show him the installation pictures and see what he thinks

None of the photos are of bathroom wall tiles - all of those photos are of floor tiles (ground floor of house) that should be fixed as per the spec in my first post.

 

[The D]

Have a look at your pics and find the ones of the bathrooms before they are tiled there is one with the boards half done post that one

 

[The D]

Picture 149 and 150 from the start

 

[mreeves]

Picture 149 and 150 from the start

Now i'm with you - you've looked at other photos in my flickr photo stream and spotted something else that is not right unconnected with the rust issue. Those pictures were taken a good 6 weeks before the bathrooms were tiled so I can't be sure they did not remedy that prior to tiling. Nethertheless I will mention it to my architect - thanks.

 

[The D]

sorry for going of topic with this and confusing you.

 

[The D]

Picture 18 has tiling on the wall and a section of exposed marmox with no washers on the screws if they did not use the washers the boards will not hold the stone to the wall so you will need to make absolutely sure this was done IMO they should be glued and screwed with washers.

 

[The D]

Untitled | Flickr - Photo Sharing!
http://www.flickr.com/photos/reeves/6441590083/

 

[Ajax123]

Could easily be rust. jurassic limestone is often accompanied by iron oolite (oolitic limestone) which is yonger. If your limestone come from the top part of the limestone layer it could contain varying degrees of iron content which will over a period oxidise forming "rust" spots. It does depend n whereit came from and the local geologyat the source.

 

[mreeves]

Picture 18 has tiling on the wall and a section of exposed marmox with no washers on the screws if they did not use the washers the boards will not hold the stone to the wall so you will need to make absolutely sure this was done IMO they should be glued and screwed with washers.

It would not surprise me one bit if the problem you have raised is prevalent throughout the bathrooms but that exposed section is not tiled - there is piece of back painted glass on there now. Can't seem to find any photos of half tiled walls at the moment.

 

[Mike Mike]

Untitled | Flickr - Photo Sharing!
Untitled | Flickr - Photo Sharing!

Deano, your nickname is going to have to be Hawkeye from now on.

I can't see the word Marmox on those boards by the way...

Out of interest, you use Marmox a lot, do you not ever just affix it to the wall with flexible adhesive, do you always screw it as well? Secondly, do you tank it in wet areas, and if so, what with (I'm especially curious about how you go over the screws and those GIGANTIC washers).

 

[The D]

start a new thread m8 on tanking

 

[Tony73]

its in the stone (rusty spots), and i think 2 coats of stain stop is more than enough . Jura does not take in much stain stop