Tile weight on various surfaces

[White Room]

Plaster is 20kg m2 and plasterboard is 32kg m2...

 

[Bubblecraft]

32kg for bare plasterboard & 20kg for skim on board

 

[kilty55]

hi brad 20 k per sq m for skim finish and 32 k per sq metre for boards

 

[Bradma9]

Thank you all that's great!

 

[Wishiwasatoptiler]

Hi lads and lasses, just wanted to check on weights,
Been asked to fix these, 600x300x10mm porcelain, these are the largest ill have fixed by far so want to make sure the weights ok for the board, to be fixed to moisture board, tanked with ardex tanking. so I've a 32kg weight per m2 both with board and also same with the tanking. Correct? I know the boards fixed sound as I've re boarded it.
So anyone know what weight these tiles will be per m2 and also am I right in thinking adhesive will be around 4kg /m2? cheers d

 

[Old Mod]

About 24kgm2
But you should check to be sure.

 

[Wishiwasatoptiler]

Young stone @ctd are the tiles.

 

[Italy]

14 kg for mq
start lottery 🙂

 

[Wishiwasatoptiler]

Hi marc, cheers, Would you recommend an addy? Thinking weber set rapid spf? Grey.

 

[Wishiwasatoptiler]

I'll check with ctd tomorrow but it looks well within tolerance. Just picked the board up at the customers house and thought bloody hell that's a weight. Lol.

 

[Old Mod]

Why would u use a rapid adhesive on the wall mate?
There's no need. And it'll make hard work of it.

 

[macten]

Yeah make it easy on yourself! - weber standard set plus or standard set SPF (if there's chance of movement) and weight limits will be fine.

 

[J Sid]

Shouldn't be any need for SPF, make sure to butter the back of the tiles 😉

 

[Wishiwasatoptiler]

Why would u use a rapid adhesive on the wall mate?
There's no need. And it'll make hard work of it.

Wanted to push the job on as had left myself short on time for another job, who's rang a number of times to check I'm still coming. So wanted to push on, but did think I might struggle, so second opinion and its off the purchase list. 😳
Then the customers who's been ringing calls today to postpone as she needs to get a sparkie in as her DIY husband has replaced the socket fronts wrong in the hall I was to skim... lol... so I can chill and tackle these first for me porcelain tiles with time pressure.
Cheers for your input fellas, much appreciated.
D

 

[Wishiwasatoptiler]

Also Spoke with CTD and they come in at 22kg m2 give or take a few grams so not for off Marc, @JulianSidney , @macten. thanks for the that to.

 

[Italy]

I did not win the lottery ?. Marc and just lucky. because in italy heavy air. tiles read more 🙁

 

[Old Mod]

I did not win the lottery ?. Marc and just lucky. because in italy heavy air. tiles read more 🙁

Just lucky! Hahaha
It was a carefully constructed educated stab in the dark
I'll have you know! Haha

 

[Italy]

Just lucky! Hahaha
It was a carefully constructed educated stab in the dark
I'll have you know! Haha

capito una BEATA M.Nchia .....

 

[Italy]

capito una BEATA M.Nchia .....

simon 70 compry?

 

[Tommcd]

Evening all,

I understand the weight limits for plasterboard, backer board etc, but....

I was wondering what is a reasonable weight limit for the actual stud partition wall? (As in, what's the limit before the framework starts crashing down) Is this something I should be considering on jobs? and what about gypframe? Stronger, weaker?

Sorry if these are stupid questions! Cheers

 

[Qwerty]

I haven't actually thought about it that much. Ive always built my own stud walls where heavy weights are involved and made them rock solid. I dare say that an architect or surveyor may have facts and figures

 

[Glynn]

I don't know the wieght limits for studding and Gypframe but all trades have standards for doing their trade correctly and will have a standard that a stud wall should meet and we would expect it to be built to the standards required. We in the tiling industry have done years of product testing on all the backgrounds and substrates in regards to weight suitability but these weight limits are based on things like stud walls being done well. We have to rely on others to do there work correctly, and it is hard to know sometimes if their work is to (the satndards) required. One thing we cannot control is the quality of other tradesmens work so if you have doubts about the stud walls suitability to take the weight of the tiling installation bring it to someones attention who may be able to address your concern or better still, if you have the skills do it yourself to a standard that you are satisfied with do it. These forums are full of threads that start with "can anyone tell me if this substrate is good enough to tile to". Fortunately these same threads do have good advice and tricks of the trade that have been used and proved over many years experience. Long winded but hopefully helps.

 

[mark01]

I have ordered some porcelain tiles 600 x 300 8mm thick, I am now thinking I have to send them back due to weight. Its for an ensuite shower and the actual shower is moisture resistant plasterboard which is being tanked, this I know is ok with the weight.
The issue is the rest of the bathroom is skimmed plasterboard - well to be specific its old skimmed board with tiles removed and the old cement knocked off and some patching in places to make the wall flat to tile on.

I know good quality skimmed walls can take 20kg m2. The tiles weigh in at 3.5kg each and at 5.5 per m2 it comes to 19.25kg per m2 (excluding cement/grout so with this its likely to be nearer 23kg.)

The wall mentioned to tile on is 1.7m wide and will be tiled to a height of 1.2m so not very high. I know I could rip it out and re-board not something I want to do ideally, I cant add a layer of board over what's there as the shower tray wouldn't fit in. - So I could do with some advice please on if 23kgm2 is pushing my luck? or if the wall height can be factored in and the fact its just 1.2m high make it possible. (full ceiling height is only on the new tanked board)

Image attached - can see far right - new board (to be tanked) far left I had to patch a board missing after some boxing being removed rest of the wall is the previous Pb after tile removal and some places filled to level it out.

 

[DC Ceramic and stone]

Could you cut the old board out and put tile backer board in instead? Sometimes it is worth the extra hassle for piece of mind. As you say you are 3kg over, which to be blunt is still over. Hardiebacker or aquapanel would suffice.

 

[mark01]

Could you cut the old board out and put tile backer board in instead? Sometimes it is worth the extra hassle for piece of mind. As you say you are 3kg over, which to be blunt is still over. Hardiebacker or aquapanel would suffice.

It would be possible on one wall, but the hardiebacker wouldn't have much to secure it as the wall as the wall is paramount partition wall (stupid egg box stuff -house is only 16yrs old but typical house builders skimping on materials and time) so little in the way of structural stud work to secure the board to. The wood between the partition is just 3/4cm in width and depth, around 80cm apart, and no horizontal supports. The shower area I had to remove the top layer of plasterboard and replaced this with MR plasterboard which was screwed into the wood (only two vertical supports to screw through to,but also a lot of adhesive. The other issue is the opposite side would not be so easily as that's single skin pb paramount as well, by removing the last skin it also means pulling away all the cardboard egg box inside to get the board away.

I spoke to three tile shops yesterday and a couple of tilers and they said it should be ok they've put up heavier tiles on skimmed walls with no issues. They suggested just putting a row up and letting the adhesive go off hard before starting the next row, and said as the wall is only being tiled up 1.2m it shouldn't be an issue.

Don't know what advice to take to be honest, never seen any physical testing of tile weights on plasterboard to see the real fail point, I expect its higher and that figure of 20kk sqm is the very cautious figure. Either that or the industry is trying to push sales of tile backer board. Tiles seem to be getting bigger but most housebuilders still use PB.

 

[Waluigi]

The best way to sort out paramount board is to take the single sheet of plasterboard down, hack the cardboard squares off with the back edge of a handsaw- this sounds demented but it really works.

Then use building adhesive (gripfill, pink grip etc, solvent based) to bond CLS timber on its side to the plasterboard you are left with. Then the following day screw your board onto the CLS.

This also give you the opportunity to get the wall flat by bonding the CLS on perfectly Plumb and flat.

Prep work like this is fairly time consuming but it means you are starting the job on the perfect wall. Starting a job on a compromise often means the finished product is also a compromise.

 

[mark01]

The best way to sort out paramount board is to take the single sheet of plasterboard down, hack the cardboard squares off with the back edge of a handsaw- this sounds demented but it really works.

Then use building adhesive (gripfill, pink grip etc, solvent based) to bond CLS timber on its side to the plasterboard you are left with. Then the following day screw your board onto the CLS.

This also give you the opportunity to get the wall flat by bonding the CLS on perfectly Plumb and flat.

Prep work like this is fairly time consuming but it means you are starting the job on the perfect wall. Starting a job on a compromise often means the finished product is also a compromise.

Yeah I appreciate this, I had to tear down the egg boxing and glue cls to the back shower wall, insulated it and then boarded. In hindsight I should have done all the walls like this at the time!