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Bieber081510 Mar 2016 07:53I just learned something new: there are rectified tiles and calibrated tiles (in addition to "normal" tiles). Have you installed either of these? If so, why? Do you have any photos?
[QUOTE=http://WWW.fliesenaktuell.de/Blog/?p=52] ... Tiles produced in a manufacturing process can have slight size variations, typically around 1-2 mm (0.04-0.08 inches). [...] However, when laying these tiles, joints of about 5 mm (0.2 inches) need to be left to compensate for these small differences.
Calibrated tiles, on the other hand, have uniform dimensions. These tiles are measured after production and sorted by size. [...]
Rectification refers to a specific edge treatment for porcelain tiles. After production, the tiles are precisely cut to an exact, consistent size with 90-degree edges. The exact dimensional accuracy of rectified tiles allows them to be installed with very narrow joints, around 2 mm (0.08 inches). [/QUOTE]
[QUOTE=http://WWW.fliesenaktuell.de/Blog/?p=52] ... Tiles produced in a manufacturing process can have slight size variations, typically around 1-2 mm (0.04-0.08 inches). [...] However, when laying these tiles, joints of about 5 mm (0.2 inches) need to be left to compensate for these small differences.
Calibrated tiles, on the other hand, have uniform dimensions. These tiles are measured after production and sorted by size. [...]
Rectification refers to a specific edge treatment for porcelain tiles. After production, the tiles are precisely cut to an exact, consistent size with 90-degree edges. The exact dimensional accuracy of rectified tiles allows them to be installed with very narrow joints, around 2 mm (0.08 inches). [/QUOTE]
A calibrated tile has sharp edges and, due to allowable and technically unavoidable production tolerances, it is nearly impossible to install without height differences on the surface (so-called lippage). Therefore, tiles are often rectified after calibration.
This process involves "breaking" the edges or lightly finishing them, where the top edge is slightly beveled all around.
Rectified tiles naturally show a grinding mark on the top edge, which can vary in intensity depending on the manufacturer.
It is therefore pointless, even unreasonable, to ask for a photo of rectified tiles! Because visually, you cannot see the difference in photos; the distinction from non-rectified tiles can only be perceived in practice by slight height differences at the tile edges and/or a consistent edge bevel, which is noticeable by touch.
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Best regards, KlaRa
This process involves "breaking" the edges or lightly finishing them, where the top edge is slightly beveled all around.
Rectified tiles naturally show a grinding mark on the top edge, which can vary in intensity depending on the manufacturer.
It is therefore pointless, even unreasonable, to ask for a photo of rectified tiles! Because visually, you cannot see the difference in photos; the distinction from non-rectified tiles can only be perceived in practice by slight height differences at the tile edges and/or a consistent edge bevel, which is noticeable by touch.
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Best regards, KlaRa
...yes, Bieber. We also have the rectified tiles. 60cm x 60cm (24 inches x 24 inches). They were not available in any other size.
What was interesting was that the installation was significantly more expensive, and since anhydrite screed was used, the tiler insisted on sealing the floor.
All quite complex but perfectly clean work.
Good luck
Jens
What was interesting was that the installation was significantly more expensive, and since anhydrite screed was used, the tiler insisted on sealing the floor.
All quite complex but perfectly clean work.
Good luck
Jens
Regarding the "impregnation" of a calcium sulfate surface:
This is definitely a misunderstanding!
Neither cement screeds nor calcium sulfate screeds are "impregnated," and according to the definition, impregnation is supposed to provide protection against water [U].
What is correct is that screed surfaces are primed after being cleaned and sanded, and then filled to create a uniformly absorbent surface.
However, this is neither complicated nor special.
It is a necessary and common step before installing floor coverings, including ceramic tiles.
And it has absolutely nothing to do with the type of screed binder (in this case, calcium sulfate binder)!
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Best regards, KlaRa
This is definitely a misunderstanding!
Neither cement screeds nor calcium sulfate screeds are "impregnated," and according to the definition, impregnation is supposed to provide protection against water [U].
What is correct is that screed surfaces are primed after being cleaned and sanded, and then filled to create a uniformly absorbent surface.
However, this is neither complicated nor special.
It is a necessary and common step before installing floor coverings, including ceramic tiles.
And it has absolutely nothing to do with the type of screed binder (in this case, calcium sulfate binder)!
------------------------
Best regards, KlaRa
..thank you KlaRa, those are convincing words.
The tiler said that anhydrite screed absorbs moisture. To create a load-bearing base, the floor had to be sanded and sealed. That was the explanation.
It is a type of primer, OK.
It was complicated because, in this 8-unit building, we were the only ones who had a tiler who did that...
Good luck
The tiler said that anhydrite screed absorbs moisture. To create a load-bearing base, the floor had to be sanded and sealed. That was the explanation.
It is a type of primer, OK.
It was complicated because, in this 8-unit building, we were the only ones who had a tiler who did that...
Good luck
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