Tiling onto new plaster

[John the tile]

Hello,

Just wondered how long after new finish plaster has set can you tile onto it.

ta

 

[david campbell]

usually give it 4-6 weeks depending if it is a skim or a new coat!

 

[enduro]

And it will need priming, not with pva use Bal SBR or similar

 

[doug boardley]

is it onto plasterboard or plaster basecoat?

 

[bitter&twisted]

When u need too as long as its dry lol :smilewinkgrin:

 

[John the tile]

either plasterboard OR backing coat,.

6 weeks, why? I thought skim plasters dried out within a week. On domestic properties I cant see customers beeing to happy if you said it cant be done for 4/6 weeks. Thay will be wanting to get their kitchen or bathroom back to normal??

any comments

 

[doug boardley]

either plasterboard OR backing coat,.

6 weeks, why? I thought skim plasters dried out within a week. On domestic properties I cant see customers beeing to happy if you said it cant be done for 4/6 weeks. Thay will be wanting to get their kitchen or bathroom back to normal??

any comments

a gypsum base coat will retain its moisture far longer than a plasterboard,it breathes moisture!, as a rule of thumb I'd tile skimmed plasterboard after 2 weeks, basecoat and skim probably about 5 weeks before tiling. Ideally tho' I wouldn't plaster onto skim because of the weight bearing (20kgm2) issues.:dizzy2:

 

[John the tile]

sorry doug, i didnt understand wat you meant when you said you wudnt plaster onto skim? did you mean tile onto skim?

so can you explain why a backing coat that still has a bit of moisture in it will effect a tile being stuck onto its top coat?

just trying to get me head round the reasons!

 

[david campbell]

either plasterboard OR backing coat,.

6 weeks, why? I thought skim plasters dried out within a week. On domestic properties I cant see customers beeing to happy if you said it cant be done for 4/6 weeks. Thay will be wanting to get their kitchen or bathroom back to normal??

any comments

would you rather wait or do it twice?

 

[doug boardley]

sorry doug, i didnt understand wat you meant when you said you wudnt plaster onto skim? did you mean tile onto skim?

so can you explain why a backing coat that still has a bit of moisture in it will effect a tile being stuck onto its top coat?

just trying to get me head round the reasons!

😳yes, that is what I meant!!😳😳😳