Flexible adhesive over ufh - full contact needed?

[g cambrensis]

Laying sandstone slabs over wet ufh and wanted to know whether or not full contact is needed between screed, adhesive and slab. Is it enough to dab adhesive at centre and corners and lay slabs.

My understanding is that ufh needs full and continuous contact to finished floor in order to work at its most efficient. Would dabbing therefore be counterproductive?

Thanks
Cambrensis

 

[Gazzer]

No to dot and dab. Apart from being wrong it would lead to hot spots !

 

[Prem Tiler]

Take a few mins to look through posts about dot and dab. You will then realise that cowboy practice is a big no no.

good on you for checking 1st though buddy.

 

[White Room]

You answered your own question.

Hi and welcome

 

[faithhealer]

Do it right, do it once Cambrensis