opus pattern problem - TilersForums.com

[nosamekul]

got a job coming up , a four size opus pattern style porcelain floor i have done several of these over the years but have always laid them level to avoid any lippage etc due to the differing grout joints direction etc , however the screed on this job is laid to a massive fall due to levels of opposing doors being out in house i was just wonderiong do these patterns work laid on a drastic fall over 40m2 with kichen islands etc to tile around . and one other point i would like some help with is does anyone know the minimum thickness of screed that should go over cellotex and piped u.f.h as it looks on the lowest point on this job its only an inch , inch and a half max (very worrying ) any help would be appreciated not sure weather to walk away or not

 

[charlie1]

Prep it or walk away! You worry is understandable, its the same with any floor or wall though regardless of pattern, imagine your flat bed sheets, it you pull them up in the middle what happens? The sides come in!! Same thing will happen to grout joints depending on several factors. ... Don't laugh at my example lol, all i could think of

 

[nosamekul]

it is a fall from one end of the room to the other which worrys me but the thickness of the screed is a big concern aswell having seen how much the cellotex sheets move and flex it cant be structually very good surely ?

 

[White Room]

The screed should be 70mm....

 

[Colour Republic]

The screed should be 70mm....

i don't do these myself but I was reading somewhere just the other day that 50mm is the optimum and 75mm is starting to push it. To be honest I always thought it was 75mm myself so was surprised to read it. Just need to remember what system they were talking about now

 

[Diamond Pool Finishers]

i though a floating floor was 65mm traditional S&C, and modified was 35mm, should look-it -up or check with ajax !!.....

 

[Aston]

my take on a floating screed is below [FONT=&quot] [/FONT]
[FONT=&quot] [/FONT][FONT=&quot]Minimum depth 65mm – maximum depth 90mm[/FONT][FONT=&quot] (domesticsituations) [/FONT][FONT=&quot]houses, flats etc[/FONT]
[FONT=&quot] Minimum depth 75mm – maximum depth 100mm (commercial situations) [/FONT][FONT=&quot]offices, factories etc[/FONT]

 

[nosamekul]

thanks for replys on screed thickness any thoughts on laying opus pattern on a fall ?

 

[AliGage]

thanks for replys on screed thickness any thoughts on laying opus pattern on a fall ?

Depends on the fall(s). If it falls in only one direction and is relatively flat. Are you intending on levelling/eliminating the floor with the tiles?

 

[swanman]

Walk away