porcelain floor tile movement

[bugs183]

Oh no, it sounds like you're having a nightmare, but at least you know your joists are safe now, no thanks to the guys that didn't inform you.
Well i've never heard of condensation due to electric underfloor heating, i wonder if anyone else has heard that one before?

 

[AliGage]

For there to be condensation there needs to be air and a difference in temperature. Im sure dot and dabbing the tiles won't have helped.
All those pockets under the tiles getting warned up and then cooling each time you're UFH is used.

 

[kaide]

I can't understand why the floor wasn't sorted before any installation has taken place. The fitter as obviously aware because the panel is far off the floor.
I fear some of your kitchen may have to be removed to rectify the floor.
How's the general attitude of your builder to it all?

Thank you so much for reading my post.
Our builder works for a building company and he's title is Contracts Manager. His attitude has been really good and he wants to rectify the situation. I just hope he will make sure his tiler will properly prep the floor according to BS 5385-3 Codes of Practice. The tiler did not prep the floor last time, it was a builder that the Contracts Manager employed to do. They are not going to remove the kitchen but work round it.

 

[AliGage]

I don't come across floors in your sort of condition too often. Most houses i work in around my area are less than 50 years old. Some of the guys on here will be able to help you make sure your on the right track. One thing i will pay though that large dip i high lighted really needs to be made good or as near as before UFH and SLC. You don't want to be heating 30-40mm of SLC Came adhesive before you get to the tile.

 

[kaide]

I don't come across floors in your sort of condition too often. Most houses i work in around my area are less than 50 years old. Some of the guys on here will be able to help you make sure your on the right track. One thing i will pay though that large dip i high lighted really needs to be made good or as near as before UFH and SLC. You don't want to be heating 30-40mm of SLC Came adhesive before you get to the tile.

Thanks AliGage,
My husband and I, are of the same opinion as you about the large dip.
We have learnt so much from all of you and want to thank you all for all the positive feedback. Our house is a terrace house and was built in 1904. The concrete area at the back of the kitchen would have been the outhouses; hence the difference in substates - concrete and wooden floors.

 

[AliGage]

More than welcome.
Not too long ago i did a bathroom install in a little cottage that had not long had there kitchen done by one of these company's that advertise on the tv
They had Lino put down in there kitchen because they were told that's all they can have. There kitchen was extended in to out buildings and had a similar mismatch of substrates like yours.