Porcelain Is this acceptable?

Discuss Is this acceptable? in the Tiling Forum | Tile Advice area at TilersForums.com

TileFix Direct
This official sponsor may provide discounts for members
Joined
Nov 14, 2019
Messages
16
Reactions
1
Location
Uk
What member type are you?
DIY Wall and Floor Tiler
We are in the process of tiling our kitchen. The kitchen is half floor boards which have been overboarded with 6mm cement boards

The tiles are 120x20 rectified plank tiles

The other half is a concrete floor

Total area 3.35m width by 6.87m length

Electric underfloor heating is also being installed throughout.

We've noticed the tiler in some areas of the floor primarily on the concrete side has used up to 30mm of tile adhesive!

We questioned this and were advised it is due to the floor not being level hence why less adhesive has been used on the cement board section but more adhesive is required to bring it level on the concrete side

Is this acceptable? If not what would be the correct method to address an uneven floor?

Our concern is that given 30mm adhesive has been used will the underfloor heating still heat the floor?
 
Mapei Tile Adhesive - Official forum sponsor
This official sponsor may provide discounts for members
Joined
Nov 15, 2007
Messages
57
Reactions
7
Location
Derby
Is the adhesive direct onto the wires.? usually would bring both floors
up to the same level then ufh fitted then a thin layer of levelling compound to cover wires then tile
Post automatically merged:

An even floor would usually be levelled with levelling compound before electr underfloor heating going down.
 

JulianSidney

TF
Esteemed
Arms
Joined
Apr 1, 2008
Messages
5,417
Reactions
8,513 63 3
Location
on a yacht somewhere on the essex coast
What member type are you?
Professional Wall and Floor Tiler
Not normally practice or something I would do but something a lot of respectable companies do.
What adhesive was used and was an expansion joint put in at the intersection of two sub floors?
 
Joined
Nov 14, 2019
Messages
16
Reactions
1
Location
Uk
What member type are you?
DIY Wall and Floor Tiler
  • Thread Starter Thread Starter
  • #4
Is the adhesive direct onto the wires.? usually would bring both floors
up to the same level then ufh fitted then a thin layer of levelling compound to cover wires then tile
Post automatically merged:

An even floor would usually be levelled with levelling compound before electr underfloor heating going down.
The underfloor heating mat has been laid directly on the floor with adhesive on top using a 12mm notched trowel and he has also used adhesive directly on the tile using the trowel
Post automatically merged:

Not normally practice or something I would do but something a lot of respectable companies do.
What adhesive was used and was an expansion joint put in at the intersection of two sub floors?
Bal rapid flex one tile adhesive

The tiling started today, not much progress has been made as he was getting the levels right.

He hasn't mentioned anything with regards to an expansion joint
Post automatically merged:

Given the depth of the adhesive being 30mm will this affect the performance of the electric underfloor heating in any way?
 
Last edited:
Joined
May 13, 2017
Messages
82
Reactions
66
Location
Cornwall
30mm does seem to be one hell of a bed depth. Surely the tiler will be making more work for themselves trying to bed up to this level, doubt BAL would recommend it either. Would have been far better to have made up most of the difference with self levelling compound.
 
Joined
Nov 14, 2019
Messages
16
Reactions
1
Location
Uk
What member type are you?
DIY Wall and Floor Tiler
  • Thread Starter Thread Starter
  • #7
We've got another tiler in who has started to level the floor. However we have some serious concerns with the appearance of the screend after 24 hours in some areas the floor has not dried and the fibres of the product have come up above the surface!

I have contacted Mapei and sent them over the pics attached who have advised it appears to that too much water has been added to the mix!

They cannot advise whether this has compromised the integrity of the screed

The product used was mapei renovation screed 3240

Does the screed look ok or does it need to be removed and started again?
 

Attachments

Reply to Is this acceptable? in the Tiling Forum | Tile Advice area at TilersForums.com

Tiling Forum

Get free wall and floor tiling advice from TilersForums.com's Tiling Forum. Both DIY and professional wall and floor tilers use this forum to make sure their tiling is spot on.



Click here to support the forum/remove ads
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

Use TilersForums.com to find Tiling Jobs or your Local Tilers for free. Get tiling tools at the best prices via the forum.