@Paul C. is the man to ask he's an encyclopaedia
Important Changes to Tiling Standards
O
One Day
British standards 12 years ago, when I first started were useful reading.
12 years later, I think they're very outdated and impractical in places.
If the writers really engaged with the industry's leading fixers instead of dictating their own take on best practise, it'd be far more relevant...
Still, if you can, read it and absorb it.
12 years later, I think they're very outdated and impractical in places.
If the writers really engaged with the industry's leading fixers instead of dictating their own take on best practise, it'd be far more relevant...
Still, if you can, read it and absorb it.
T
Tile Shop
If you wanna re-mortgage and buy them, you or you can veiw them for by following this:
British Standards no longer available at Newcastle Library.... But here's another way. - https://www.tilersforums.com/threads/british-standards-no-longer-available-at-newcastle-library-but-heres-another-way.83947/
Newcastle didn't have the funding to keep going. Other libraries have them but going through manchester was by far the easiest way.
British Standards no longer available at Newcastle Library.... But here's another way. - https://www.tilersforums.com/threads/british-standards-no-longer-available-at-newcastle-library-but-heres-another-way.83947/
Newcastle didn't have the funding to keep going. Other libraries have them but going through manchester was by far the easiest way.
T
Tile Shop
Morning all. A while back I posted this thread about how to access british standards after Newcastle Library stopped doing them:
British Standards no longer available at Newcastle Library.... But here's another way. - https://www.tilersforums.com/threads/british-standards-no-longer-available-at-newcastle-library-but-heres-another-way.83947/
Thing is, Manchester have them, but they have now blocked access to anyone not associated with their Intellectual Property Centre. So on the hunt for a new way.
New way to do it here: https://www.tilersforums.com/thread...-british-standards-for-free-these-days.89724/
Thing is, Manchester have them, but they have now blocked access to anyone not associated with their Intellectual Property Centre. So on the hunt for a new way.
New way to do it here: https://www.tilersforums.com/thread...-british-standards-for-free-these-days.89724/
Last edited by a moderator:
O
Old Mod
S
Simon Pinto
This is a real pain in the backside!
T
Time's Ran Out
Simon you could always buy a set!🙄
T
Tile Shop
yeah. only £1168. Bargin! 🙂
W
Waluigi
Just bought two copies, one to keep in the van, the other to keep next to the cloakroom WC
I
Italy
but are not they ashamed?
Here it seems to me costs 90 €, free for members assoposa
T
Tile Shop
I don't think they care. Can get the half price if you are a member of either BSI or the TTA
O
Old Mod
That appears to be a very pointed remark Matt, would you like to elaborate? 🙂
As part of my Job I deal with the standards every day so have full access
T
Time's Ran Out
Not from Devon originally only been here 10 years
O
Old Mod
So Matt.................
T
Time's Ran Out
So Matt.......
What is the British Standard recommendation for joint widths for large format (over 3m) sheets of porcelain.
What is the British Standard recommendation for joint widths for large format (over 3m) sheets of porcelain.
Would be 5mm, however we know that people wont do that for aesthetic reasons
T
Time's Ran Out
Read that in the TSJ and totally agree, 5mm joint in seamless work!
So who accepts responsibility?
Client?
Architect?
Interior designer?
And how does it get signed off?
I’am just a Tiler!
So who accepts responsibility?
Client?
Architect?
Interior designer?
And how does it get signed off?
I’am just a Tiler!
T
Tile Shop
TTA/BSI vs Tilers:
I
Italy
here the minimum allowed is 2mm
Down to Architect or Designer in my opinion to know what the standard is and apply it accordingly in the installation
J
J Sid
at the end of the day must be down to tiler.
whatever the architect or designer say it's the tiler doing the job and has to do it to the BS.
whatever the architect or designer say it's the tiler doing the job and has to do it to the BS.
J
J Sid
must be down to the tiler not the architect or designer or even the Property owner
T
Tile Shop
Nerd alert!!! INCOMING!
Based on the CoLTE of porcelain (4 in general) if a room is 20oC normally and the temp rises to 30oC when the bathroom, underfloor heating or whatever is in use, a 2400x1200 porcelain tile will expand to 2400.096 x 1200.048mm. Would that 0.096 x 0.048 of a millimetre make a difference? 1mm joints might struggle to buffer it, maybe.... but 2-3mm with flexi grout, flexi adhesive and appropriate expansion joints, shouldn't cause much of a problem but that also depends on their deformability.
Also need to bare in mind whether or not the substrate is subject to the same temperature fluctuations and how much they are likely to expand. for the same amount of plaster (2.4m) for example it will expand by 0.408mm.
IMO British standards are a little on the safe side, but not massively. I can see why they thought a need to amend. But the trouble is all the manufactures say their products are only guaranteed if used in line with the current standards. Ultimately if anything goes wrong, the tiler gets the blame, whether they were/weren't aware of the requirements or someone else requested it.
Based on the CoLTE of porcelain (4 in general) if a room is 20oC normally and the temp rises to 30oC when the bathroom, underfloor heating or whatever is in use, a 2400x1200 porcelain tile will expand to 2400.096 x 1200.048mm. Would that 0.096 x 0.048 of a millimetre make a difference? 1mm joints might struggle to buffer it, maybe.... but 2-3mm with flexi grout, flexi adhesive and appropriate expansion joints, shouldn't cause much of a problem but that also depends on their deformability.
Also need to bare in mind whether or not the substrate is subject to the same temperature fluctuations and how much they are likely to expand. for the same amount of plaster (2.4m) for example it will expand by 0.408mm.
IMO British standards are a little on the safe side, but not massively. I can see why they thought a need to amend. But the trouble is all the manufactures say their products are only guaranteed if used in line with the current standards. Ultimately if anything goes wrong, the tiler gets the blame, whether they were/weren't aware of the requirements or someone else requested it.
J
J Sid
that's for 6mm tile?
how much expansion when ufh is on 34 oC which is allowed on an area no bigger than 1m2 (under building regs, I believe)?
BS may not always be liked or look good on joint size but a good safety margin needs to be worked into the calculations
how much expansion when ufh is on 34 oC which is allowed on an area no bigger than 1m2 (under building regs, I believe)?
BS may not always be liked or look good on joint size but a good safety margin needs to be worked into the calculations
W
Waluigi
Coefficient of Linear thermal expansion?
I remember dealing with that for sheet lead. It’s fascinating stuff, kind of 😀
I remember dealing with that for sheet lead. It’s fascinating stuff, kind of 😀
T
Tile Shop
Thickness wouldn't make much of a difference, only to the time it takes to reach its top temperature. It would be on the assumption that the tile at the overall thickness would heat up evenly. I know thats not 100% realistic as one side would heat up quicker than the other, but the difference is neglegable and wouldn't alter the overall maximum possible expansion.
If you had a 1m room, with a single 1m slab, starting at 20oc rising to 34, gives a maximum expansion of 0.056mm. Still a very tiny and almost insignificant amount.
Even if it was divided into smaller porcelain tiles, the expansion % would be at the same but you would have more grout joints to buffer the effect. so if you had 10 98x98 with 2mm grout joints each tile would expand by 0.0056mm...... which is naff all.
There are similar tiling threads here
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