Quick intro and a couple of qs (primer G and setting out)

[N!ck]

Evening,
Quick intro; Ive been lurking on the forum for a few weeks in prep for a job I am doing on my kitchen tomorrow. Im an engineer by trade but have a couple of tiling projects under my belt ( full bathroom including tiled bath panel, and my mams kitchen). Having gained a lot of info from here I am planning on doing the best job I can tomorrow - 600x600mm porcelain onto a screed/slc floor - and there lies my first problem.

In preparation I have bought some Primer G to use before using keraquick adhesive. Do I need the Primer G? Having looked online on the data sheet http://www.mapei.com/public/COM/products/532_primer g_gb.pdf it makes no mention of using on screed in the application section. However in the Keraquick data sheet http://www.mapei.com/public/GB/products/103_Keraquick_UK.PDF it says anhydrite screeds must be dry etc and treated with primer G.

The second Q is about setting out; if I center the first tile in the doorway I will end up with approx a 120mm cut along a wall to the right. If I center 2 tiles (so the grout is in the center of the doorway) It obviously gives me a much larger cut but I am unsure if that will look unprofessional as you walk through the door. What would a pro do?

My final Q is also about setting out - hopefully the 3 quick diagrams explain my thoughts. Basically the width of X+Y+Z is grater than 1209mm (2x600mm + 3x3mm spacers). Also Y is where the oven is and is not central (there is a bigger gap to the left - X ). I am just after peoples opinions really, particularly myself and the mrs currently dissagree!

Thanks for your time
Nick

 

[N!ck]

 

[jay]

:welcome: what type of screed is it ,and is it just the hallway or does that join with the kitchen

 

[N!ck]

Thats partially my problem - im not sure. The house is about 15 years old and I believe it is the screed that was laid then, but I am unsure of the type. It is the same all the way through the bottom floor.

the doorway is where the tiling finishes - no hallway or anything, there is laminate flooring the otherside.

Cheers

 

[jay]

You will need to find out what type of screed it is (maybe posting pics might help) as for the set out will need a plan of the whole area to be tiled or maybe a pic with some tiles sitting in the set out you think .

 

[N!ck]

Here is some pic of the screed, I will draw up a quick sketch of the whole area. Thanks for your help btw

 

[N!ck]

Quick pic to qive an appreciation of the whole area although not to scale - that will take me a little longer

 

[jay]

Iam guessing its a normal sand and cement screed with slc over it

 

[N!ck]

Would I be right in saying that SLC doesnt need Priming?

 

[jay]

does the kitchen measure 1209 with kick board off or with kick board on and whats the distance from the existing flooring to the kick board on the first cupboard

 

[N!ck]

Its greater than the minimum I need of 1209 with the kickboard on. its actually 1290 with it on, so in theory 81mm too small to have 2 full tiles

 

[jay]

im lost with the kick board on its bigger

 

[The D]

it looks like a power floated floor personally i would prime it it can't hurt. the setting out is personal choice as long as you don't have silly little cuts it is all good.* *

 

[N!ck]

Sorry Jay, I havent been very clear, I also calculated wrong (I included the width of the grout x 3 when I would only need 1 x3mm grout gap). The width is greater than 2 tiles plus grout. This leaves me with the 2 options in post 2. I plan on tiling under the cabinets then placing the facias on top. Just really after opinions on what would look better out of those options.

Thanks deano my next question is how should i dilute it?

Has anyone any idea what I should do with the doorway setting out?

Thanks for this fellas, very much appreciated.

 

[davemul]

Primer G - 3 parts water to 1 Primer

is the screed dusty?

give it a coat as said above, cannot hurt!

 

[N!ck]

decided to go with 2:1 just to be sure. No, not dusty, made sure it was very clean before i started. Just waiting for it to dry now.... what a way to spend friday night.

 

[DHTiling]

Any update and more pics.)

 

[N!ck]

Well I was up until 1am finishing off and I am well happy with the result. Ended up setting them out as in the pic. I also have a new found respect for tilers - lugging them big tiles about all day is not easy on the back, and I only had about 10m2 to do, god knows what its like on a site.
Just one final question, the tiles I used are 600mm x 600mm porcelain from B&Q - "Loft coal floor tile". I can not see or feel any transit wax on them, and did a small water test earlier and after 2 hours, there was no absorption. Will they need sealing?

 

[davemul]

looks great

 

[DHTiling]

Those tiles don't need sealing..

Porcelain bodied but glazed surface..

 

[N!ck]

Fantastic, thanks for that

 

[The D]

nice one m8 looks good.

 

[kilty55]

job looks good

 

[N!ck]

Thanks guys