load weights

[Daveshadowman]

I am doing a job at the min for a large firm sub contracting, I was worried about load weights at the start of the job and told the site manger, after finding the post on here today I am even more worried, I am fixing 600 x 300 porcelain onto plaster board walls fixed to metal stud work with 12 screws in each board. Can the boards take this weight?

 

[DHTiling]

I suppose the boards are at 900mm centres as well.?

 

[Daveshadowman]

yes 900mm centres

 

[DHTiling]

I would fix up the studs at 300mm intervals and then over board again to take out the flex.. why they build walls like that is beyond me..

 

[Daveshadowman]

Yes I have 20 bathrooms to do within this building did the first two this week and there is a boxing in the corner and in one of the rooms the board was boncing the site manger said to just get and do it but I am really worried about this (sorry if the spelling is wrong)

 

[Daveshadowman]

thier is 30m2 in each room

 

[jay]

Might need more screws for starters http://www.knaufplasterboard.com.au...4.1.4 Wet Areas using Plasterboard.pdf#page=8


and as Dave said

 

[DHTiling]

I know it is hard and against what you know is right,, but that is how they build some houses... just don't lean against them once tiled.. lol..

 

[White Room]

Probably 50mm stud and it needs more screws...I've seen 15mm boards used to make it more rigid.

 

[Daveshadowman]

I will post some pics after monday when i am back on site

 

[DHTiling]

Probably 50mm stud and it needs more screws...I seen 15mm boards used to make it more rigid.

we have over boarded before.. 2 x layers of 12.5mm , gives an inch of support.. usually works.

 

[jay]

Tiled Walls
Position fasteners between 10mm and 16mm from the
edge of the sheets at the correct spacing to carry the
loads of the tiles.
For walls with tiles 6.5mm thick or 12.5 kg/m2 or less,
space fasteners at 200mm maximum centres on the
intermediate studs and at 150mm on internal and
external corners, butt joints and around openings.
Where tiles are greater than 6.5mm thick or 32 kg/m2,
space all fasteners at 100mm maximum spacing, in the
centre of sheets, on internal and external corners, butt
joints and around openings
Tile adhesive should be compatible with the
waterproofing membrane.


http://www.google.com.au/url?sa=t&r...v73LDQ&usg=AFQjCNHAloXRBqLJ55Cxq6nknjXky-7lIw

 

[DHTiling]

UK standards are different....

 

[Daveshadowman]

forgot i have a couple of pics from my phone

 

[jay]

UK standards are different....

funny world same product going on the same substrate yet fixed different UK standards have a long way to go

 

[DHTiling]

funny world same product going on the same substrate yet fixed different UK standards have a long way to go

This metal stud walls have sole plate/ceiling plate and then vertical studs at 900mm centres.. no intermittent noggings.. so how can one fix other than to the studs..?

The walls are really springy and over boarding is sometimes the only way to make them rigid.. but again not always possible... maybe on a private domestic job the boarding can be removed and the walls structure strengthened but on a site like the OP has, he just has to tile it..

it isn't a case of standards have a long way to go, it is the building practices that need to be when fully tiling is to be installed and these are again different world wide..

 

[widler]

900 centres,jesus,i thought 600 centres were bad enough


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[jay]

This metal stud walls have sole plate/ceiling plate and then vertical studs at 900mm centres.. no intermittent noggings.. so how can one fix other than to the studs..?

The walls are really springy and over boarding is sometimes the only way to make them rigid.. but again not always possible... maybe on a private domestic job the boarding can be removed and the walls structure strengthened but on a site like the OP has, he just has to tile it..

it isn't a case of standards have a long way to go, it is the building practices that need to be when fully tiling is to be installed and these are again different world wide..

Was meaning that the screws should be in the tiled areas at max 200 centers up the studs (metal or timber) not like norm one at the top one at the bottom and maybe one in the center.900 centers is stupid

 

[DHTiling]

Sure is, proper springy walls.

 

[White Room]

On the 50mm metal stud work it should be 600mm centres...

 

[Daveshadowman]

took some advice on this today (whilst at the golf club lots of lawyers there today) if it all comes crashing down and i have put it in writing that i think the loads wieghts are wrong i am ok. going to talk to the site manger agian in the morning and have allready e-mailed there head office .