Roof terrace

[batiling]

Hi All,
I have been to look at a job where a roof terrace(30m2) has been tiled in 40x40 slate just before xmas.Last week the garage underneath had a sizeable leak in it coming through the roof.Customer has asked for tiles to be ripped up then go from there.My question is does anyone know of any membrane that is suitable for outside that i can tile on?The roofers i know dont recommend i tile on the flat roof membrane they use.Any info would be appreciated as i dont want to get the price wrong

[Dave]

A terrace tiled outside just before Xmas..

Well i can tell you this.. the whole of the uk was far to cold for outside tiling then..

[Dave]

Ok.. there are membranes that can be used but what is the substrate of this balcony..?

[batiling]

Its a normal flat roof asphalt i think,i could be wrong though it was raining at the time,im a bit wary of taking this on i dont want to have the same prob in a few months

[Dave]

If it is not floor grade Apshalt then it cannot be tiled on as it is.. You really need to investigate a lot further before you commit..

[garythetiler]

There are low temperature additives for outside work when its cold, kerakol antigelo additive allows work down to -10c

[Dave]

Maybe but do adhesive manufactures allow this and guarantee it with their products..?


I think only Kerkol will Gaz..

Just to add without hijacking the thread.. it might stop frost attack but how will it help the chemical hydration that virtually stops when below 5dgs cel/?

[garythetiler]

reading the info on the pdf you would need to mix all the ingredients at normal temperatures but it allows the mortar once mixed to be used in cold weather and does allow it to set at temperatures down to -10c hers is a link http://products.kerakoll.com/gestion...ntigelo_en.pdf

[Dave]

Looks ok.. but would the likes of say Mapei let you use it..

And after my last use of a Kerakol product.. personally i would have no faith in it..and kerakol know what i mean.


Ok thread back on track..

[batiling]

Thanks for replies i have given the job a swerve it could of been a nice earner but im honest enough to hold my hands up and say i dont know enough about it.The last thing i need is a phone call later down the line about a leaky roof!