swimming pool

[breton]

hello to all fixers
Just been asked to tile a 150mtr swimming pool, the client says he doesnt need any expansion joint in the structure the architect says he does. job is starting next week. should i put the joint/s in. Will be fixing 300x300 porcelain not sure as yet what to charge per mtr

[smurf21]

Not sure on swimming pools but if the architect says it does then it does if it was a 150m2 floor i would defo be putting them in. im sure a swimming pool tiler will be along shortly to advise.....

[breton]

exactly my thoughts

[LM Ceramics]

shows what i client knows if the archietect specifies it then it would be best to put an expansion joint in

[Daz]

Are you doing the rendering and tanking too?
If the architect has specified expansion joints then these will need to be incorporated in the substrate and brought to the surface through the tiling.

How come the customer thinks he knows more than the experts?

[whitebeam]

Take the architects advise, if it goes belly up you may not have a leg to stand on

[breton]

ahh well, he used to build them for other people years ago, he says the render is smooth and flat incorporatng a waterproofer the structure is reinforced concrete. he is supplying all materials. i didnt recall tanking mentioned on the verbal spec he gave me over the phone . am going to site this week, thanks for the info

[breton]

thats true,been there in my early fixing days ol chum .thanks!

[obobsmith]

Don't know much about swimming pools though I have spent many hours at the bottom of full ones ( the gills help), but there are some really massive 30-40k gallons and over Koi ponds which are way over engineered using hollow block backfilled and steel etc etc and then tanked using fiberglass, none of which incorporate expansion joints. They don't leak in general and if they do its usually because of pipework in the filterhouse
Given the pressure excerted by the water ( 1 bar per 10m depth + 1 bar surface/atmospheric) I would think an expansion joint may well be a very considerable weak point.
But then I'm not an expert

[simplythebest]

My advise is follow what is given to you on the writen spec sheet , then you are just following the given specification. Then any comebacks and your rear is covered. If you really feel it needs an EJ then get a written instruction from the archetect( if its not in his spec already).

[breton]

bloody pool,complete change of spec now to 400 x400 slate,job been put back now till second week in august,oh no expansion joints now

[Prem Tiler]

slate? in a pool?

how bazar!

[Ajax123]

My advise is follow what is given to you on the writen spec sheet , then you are just following the given specification. Then any comebacks and your rear is covered. If you really feel it needs an EJ then get a written instruction from the archetect( if its not in his spec already).

Not so. If you follow a spec that you know to be defficient or questionable then you will be considered negligent as you have failed to apply Due Dilligence. No court would uphold your case if your only defence was that you were just following orders under those curcumstances.

[Sir Ramic]

Not so. If you follow a spec that you know to be defficient or questionable then you will be considered negligent as you have failed to apply Due Dilligence. No court would uphold your case if your only defence was that you were just following orders under those curcumstances.

Very true

[Sir Ramic]

bloody pool,complete change of spec now to 400 x400 slate,job been put back now till second week in august,oh no expansion joints now

No expansion joints is crazy especially more so with a fragile tile such as slate. I can hear trouble coming already.

[Ajax123]

hello to all fixers
Just been asked to tile a 150mtr swimming pool, the client says he doesnt need any expansion joint in the structure the architect says he does. job is starting next week. should i put the joint/s in. Will be fixing 300x300 porcelain not sure as yet what to charge per mtr

I suppose the need for structural joints depends on the nauture of the structure. E.G 150mtr square traditional concrete base requires joints in all curcumstances. The number and configuartion depends on the depth of concrete. Maximum bay dimension should be no more than 40 times the depth so if 100mm deep joints every 4m. Aspect ratio for bays should not exceed 2:1. These sizes can be extended if suitable reinforcement is placed e.g steel fibres or A142 steel mesh. These joints are not for expansion but contraction joint to control cracking of the concrete due to shrinkage. Expansion joints as such are rarely needed in temperate climates such as the UK unless the concrete or screed is to be heated.

Brick walls should have a joint every 5 linear meters etc etc.

I guess the obvious question then is what is the subsrate because that will determine the need for joints.

[Gazebo]

if it goes belly up

Thats me doing the back stroke.