Pietra Serena Sandstone 800x800mm help

[Stuart_AC]

Don't know why I didn't do this earlier but I just checked back on some images I took prior to grouting (about 2 or 3 hrs after fixing the tiles) and see that the dark blotches are there so I can assume that it's not a grout stain. The blotches don't look as dark as they are now but that could be due to the dust on the tile or it could be that the stain has got worse.

I'm about 90% sure that the tiles weren't marked prior to them going down - I have about 25 left so will have a look to see if any are marked. Nearly all of the marked tiles have the streak pattern diagonally across them like on the image which is strange.

About half way through the job BAL changed their adhesive product - I was using BAL Stone PTB in grey and they stopped making it. I finished the job with BAL Pourable one in white and still have a selection of marked tiles on that area of floor too.

I worried that perhaps I applied the pre-grout seal too early after laying and have sealed in moisture - some parts of the house were sealed within 2 days after they went down but the kitchen which is shown in the image wasn't pre-grout sealed for 2 weeks after laying. In any case you can get the tiles pre-sealed in a factory prior to delivery so I assume that pre-grout sealing isn't an issue.

I'll contact BAL technical to see if they have any comment but I assume that they'll say it's not their product.

Bob gave some useful advice earlier so I'll drop him a msg in the meantime to see if he's seen anything like this.

Cheers

 

[NJoy]

As interesting as I have found this thread, the original poster is not an architect so shouldn’t be promoting himself as such. Tut tut.

Architects Register Search - Find an Architect - http://architects-register.org.uk/

 

[Dumbo]

As interesting as I have found this thread, the original poster is not an architect so shouldn’t be promoting himself as such. Tut tut.

Architects Register Search - Find an Architect - http://architects-register.org.uk/

Interesting point maybe we should have to pass qualifications before we can call ourselves tilers .

 

[NJoy]

The title is protected by law and legislation.

Interesting point maybe we should have to pass qualifications before we can call ourselves tilers .

 

[Stuart_AC]

Hi NJoy,

Glad you found the thread interesting.

You’re right I’m not currently registered with the ARB therefore you’ll not find me on the register. I still work in Architecture through a Chartered Architectural Practice and also a sole trader ship (I suppose as an architectural designer if you need a definition), have all of the relevant insurances and clients are fully aware of my qualifications and skill level - but you’re of course right to pick up on the protected title. Sometimes it’s just easier to roll that off the tongue rather than explain the intricacies of the registration process.

In terms of the tiles we never managed to figure out the dark mark problems in terms of cause or resolution– if I were to guess the MVHR (mechanical ventilation) in the house created rather low humidity conditions which pulled moisture and minerals through the tile from the adhesive. It was winter and the ventilation system was heating the air with an electric element so it was very dry. Because the room air was so dry there was in effect pressure differential where moisture is drawn towards dry.

If I were to do it again I’d apply an additional dmp on the top of the slab (even the slab moisture level was less than 5%) and also turn off the ventilation for a couple of weeks after install to ensure a standard internal humidity level. I spoke to a contractor who worked on Apple stores and that’s what they suggested.

 

[Dumbo]

The title is protected by law and legislation.

Exactly maybe that is what we should do protect it by law .
Mind I don't see how riba should be able to own a job title .
I mean all these architects put letters after their name anyway .

 

[NJoy]

RIBA has nothing to do with it, as it’s policed by ARB. Requires an Act of Parliament to provide protection of title. Perhaps you should lobby your own trade body if you feel that strongly?

And by letters you mean qualifications?

 

[Dumbo]

RIBA has nothing to do with it, as it’s policed by ARB. Requires an Act of Parliament to provide protection of title. Perhaps you should lobby your own trade body if you feel that strongly?

And by letters you mean qualifications?

Now they just make them up .

 

[Stuart_AC]

It’s an interesting debate…

The easiest way to explain it is that RIBA oversee the educational requirements on route to ARB registration. You must register with RIBA when training as they prescribe the examinations. After you get to a certain stage and register with ARB you can use the Architect title. You don’t need to be a member of RIBA to call yourself an architect.

You can finish the educational requirements with RIBA and not register with the ARB. You can also be registered with the ARB (it’s an annual membership) then chose not to renew thus ceasing to be a registered architect. Non-registered (architectural designers or whatever you want to call them) commonly own chartered architectural practices with ARB registered partners and employ architects. Registering as an architect is one way to demonstrate competence in building design + associated skills, but that’s not to say that a registered architect is any better than someone who isn’t registered and has worked in practice for years. Ultimately, I’d advise that you check the person’s body of work and ensure that all relevant insurances are in place. NJoy was right about how I termed my title. I’m usually more careful but even after you explain the specifics clients, press, planners, and building control officers they will still refer to you as the architect as that’s essentially what you’re doing.

Was it not once the case with trades that you had to be time served before calling yourself a tiler or joiner? Do young tilers still predominantly go to college on day release or is that a thing of the past?

 

[Bill]

It’s an interesting debate…


Was it not once the case with trades that you had to be time served before calling yourself a tiler or joiner? Do young tilers still predominantly go to college on day release or is that a thing of the past?

No, you could have once completed an apprenticeship via college and earned a City & Guilds certificate too. Probably the best way considering today's rules on site work.

Time served means not going to college.

 

[Lou]

Don't mind me while I bump up some older but good threads. If you can contribute to the thread, go ahead. But if it's nothing for you then don't reply and it'll soon drop off the What's New page etc.
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