British Standards Query

[One Day]

Nah, red packers are 3mm

 

[bsc ceramics]

Nice one Paul

 

[AOS TIling]

Well done Paul for helping the chap out

 

[Rookery]

Well done Paul for helping the chap out

Paul is a Topps chap isn't he? Very comprehensive help, it must have taken you ages.

 

[Tile Shop]

Paul is a Topps chap isn't he? Very comprehensive help, it must have taken you ages.

Topps?????? I've never been so insulted and didn't take that long. Just had to find it and type it out.

 

[Rookery]

My apologies. I thought I'd read that some time way back when. Must've been another Paul, like Ron or Dave.

 

[Dumbo]

Nah, red packers are 3mm

So now I've got to persuade him he has a 6mm grout joint

 

[Soso]

Paul, Are you still free to offer more advise? We have had major issue with our builder regarding tile association and British standards. He used dot and dab but is now stating he "back buttered" which we know he didn't do and didnt say originally. He also didn't waterproof the shower areas before tiling. Loads of issues. I see you are in ********* area too...

Indeed. Correct you are.

Codes of practice recommend sound good practice as currently undertaken by competent and conscientious practitioners. They are drafted to incorporate a degree of flexibility in application, whilst offering reliable indicative benchmarks. They are commonly used in the construction and civil engineering industries.

At the beginning of the standards there is a disclaimer:

Use of this document

As a code of practice, this part of BS 5385 takes the form of guidance and recommendations. It should not be quoted as if it were a specification and particular care should be taken to ensure that claims of compliance are not misleading.

Any user claiming compliance with this part of BS 5385 is expected to be able to justify any course of action that deviates from its recommendations.

Users seeking assistance in identifying appropriate conformity assessment bodies or schemes may ask BSI to forward their enquiries to the relevant association.

 

[Soso]

BS5385-1:2009 Wall and floor tiling. Design and installation of ceramic, natural stone and mosaic wall tiling in normal internal conditions. Code of practice

7.1.9.1 Finished tile surfaces
The surface should be true such that, when checked with a 2m straightedge with 3mm thick feet at each end, the straightedge should not be obstructed by the tiles and no gap should be greater than 6mm

There are permissible manufacturing tolerances for ceramic tiles defined in BS EN 14411; certain types of tiles, e.g. extruded or large format, might have permissible surface flatness irregularities that cannot satisfactorily be accommodated within the surface flatness tolerance permitted to the tile installer; this should be taken into account when evaluating the achievable flatness of a wall or floor tiling installation.

Note: In my professional opinion, based on your images, the last paragraph should not apply to your tiles, but get written advise from your supplier to clarify. Paul C.... more to follow....

Sorry if this is dumb question but what does it mean when it says 3mm feet at each end of 2m straight edge? Does it mean that if the feet weren't there, at no point should the edge of the straight edge and tile surface dip 3mm below the straight edge or rise 3mm above edge of straight edge?

 

[Simon Dale]

I had a guy once complining about lippage on a floor because when he slid his chair back it caught the tile edge . He was demonstrating to me with a piece of square ended wood . I then took his piece of wood place it on the high tile then took one mm packer out of my pocket and tried to get it under his piece of wood. . It wouldn't go. I then told him about British standards and it was put to bed.
Red packers are 1mm arent they

5

 

[Tile Shop]

Sorry if this is dumb question but what does it mean when it says 3mm feet at each end of 2m straight edge? Does it mean that if the feet weren't there, at no point should the edge of the straight edge and tile surface dip 3mm below the straight edge or rise 3mm above edge of straight edge?

Kind of, yes. But when you have a flat straight edge sitting over tiles, you will be able to see the dips but there is nothing to say your straight edge is sitting on a peak, which could distort your findings.

Easier to put the feet on (3mm packers or a couple of broken of arms from a spacer, glued or cellotaped on will be fine). Then run the straight edge all over the wall/floor in all directions. You will be looking for the straight edge either being impeded by peaks or a 6mm or greater gap over troughs. If you see a 6mm gap, ensure that where the feet of the straight edge are sitting is not a high spot.

 

[Soso]

Kind of, yes. But when you have a flat straight edge sitting over tiles, you will be able to see the dips but there is nothing to say your straight edge is sitting on a peak, which could distort your findings.

Easier to put the feet on (3mm packers or a couple of broken of arms from a spacer, glued or cellotaped on will be fine). Then run the straight edge all over the wall/floor in all directions. You will be looking for the straight edge either being impeded by peaks or a 6mm or greater gap over troughs. If you see a 6mm gap, ensure that where the feet of the straight edge are sitting is not a high spot.

Ahhh, now I get it. I'll give it a go. I already can see bigger than 6 MM gaps but will try this method before replying to our tile fixer. Much appreciated !

 

[Dan]

Hello,

I recently received some great advice from you all regarding an ongoing dispute (Is this an acceptable edge cut? - https://www.tilersforums.com/threads/is-this-an-acceptable-edge-cut.84202/), and I wondered if I might impose on you one more time for some information regarding BS 5385.
I cannot afford to purchase a copy, and we are now going to mediation over the dispute in a couple of days, so don't have time to locate a copy in a library.
I just wondered if anyone who owns a copy could possibly relate what it says with regard to quality of finish. In particular, lining up of tiles, quality of cuts and tiles being flush.
These are the three main issues we have with the work, and three things we feel are a fundamental expectation of any tiling job (something which you all kindly confirmed in the above thread) and it would greatly help if we were able to provide some information on this in our defence from a respected organisation like British Standards.
This issue has been going on for 4 months now. We have offered to pay half for the tiling despite being completely unsatisfied, but they still demand full payment.
Any information on this matter any of you are able to help with would be appreciated enormously.
Thanks in advance.

https://www.tilersforums.com/thread...-british-standards-for-free-these-days.89724/ - New way to access british standards