Trowel notch size for 305x305 travertine & calculating adhesive depth

[davemul]

Good afternoon,

I need to calculate the thickness of adhesive once wall tiles are laid (for corner basin mounting)

Tiles are 305 x 305 trav, 10mm thick.

I have these trowels from my bathroom job. the square notch is 10mm and i think the slanted notch is 12

EDIT, i also have a 6mm notched trowel.

If 8mm is reccomended, ill go out and get one when i pick up the bag of adhesive

Question 1 - Which one should I use for the trav wall tiles? 6, 10 or slanted

Question 2 - What would the thickness of adhesive be once tiles are on the wall using the correct trowel? (I will be back buttering the trav too)

Thanks all
Dave

 

[cam_low]

Re: Trowel notch size for 305x305 travertine & calculating adhesive de

Dependant on the state of your walls it could vary. I use a selection of trowels sometimes.

Personally id be using a 10mm for stone on the walls.

The finished depth wil sink to 4/5mm imo.

How many m2 are you tiling?

 

[DHTiling]

Re: Trowel notch size for 305x305 travertine & calculating adhesive de

If the walls are flat , then an 8mm is good to go and a light back skim for contact , bed will be around 2mm to 3mm if you bed in tight.

 

[davemul]

Re: Trowel notch size for 305x305 travertine & calculating adhesive de

Hi gents, its only a 4m2 job. (half a cloakroom WC)

might stick with the 10mm. Nothings ever been straight in this house

thank you
Dave

 

[AliGage]

Re: Trowel notch size for 305x305 travertine & calculating adhesive de

I'm with Dave (not literally )

I use 8mm for trav that size. Youll be ok with your 10 though. Set in well and if you butt the stone together before adding your spacing you can mop up any excess as it squeezes through.
Im sure you know to back skim the stone and use a white adhesive.

 

[davemul]

Re: Trowel notch size for 305x305 travertine & calculating adhesive de

Thanks very much gents :hurray:

Hi Allister, yes white flexible cement based adhesive (BAL or mapei), back butter and i will seal the stone before grouting (its filled trav already)


Oh, forgot...

I need to drill a few holes, i have some porsadrills left. I assume these will be ok.

I also assume cutting will be with a wet cutter or angel grinder? I'll prob need a new blade. any rec's?

thank you

 

[Sean SML Tiling]

Re: Trowel notch size for 305x305 travertine & calculating adhesive de

Try alan at ats diamond tools hes on ebay. Great products at brilliant prices :thumbup:

 

[Protilers]

Re: Trowel notch size for 305x305 travertine & calculating adhesive de

I use a 10x10 sq notch "almost" all the time these days.....

back butter the trav (white addy) and the finished bed after rubbing in will be 4-5mm IMO

all the best

Lee

 

[tilerbarry]

Re: Trowel notch size for 305x305 travertine & calculating adhesive de

Diatech Scotland have got some cracking 115mm porcelain dry cut blades