d&d board onto old painted plaster - and then tile

[White Room]

hi andy those hammer fixings wont hold the board up unless washers are used is that correct mate? as once you nock the plug thrugh the board it will create a whole as big as the screw head am I rite? cheers

If your just using screws to hold plasterboard and if the head of the screw goes through the paper face then it's next to useless....

 

[Mr Tiler]

cheers havnt had the chance to do any dot n dabbing boards up yet.... mark what about when using drywall screws to attatch p.b to timber is that a no? ive done that a few times seems fine

 

[White Room]

cheers havnt had the chance to do any dot n dabbing boards up yet.... mark what about when using drywall screws to attatch p.b to timber is that a no? ive done that a few times seems fine

Thats fine Ash but use course threaded screws which hold better to timber and again don't let the the screw head break through the paper face of the board...to add the screws should be 32mm.

 

[Guitardedleon]

sorry just read the last few posts, now I'm slightly confused..

once d&d to the wall and dry, i would use the fixings.

Andy, I take it you've used them before, how do you do it?

as my knowledge of PB is to have the screws just below surface to prevent trowel snagging
obviously with tiling its not quite the same as skimming
so are you able to leave the screw heads proud (as far in without breaking the paper)
and just apply your addy over the heads as normal?

 

[White Room]

The fixings should be flush to the paper face but not breaking through the paper surface with the screw head....

 

[Andy Tiler]

sorry just read the last few posts, now I'm slightly confused..

once d&d to the wall and dry, i would use the fixings.

Andy, I take it you've used them before, how do you do it?

as my knowledge of PB is to have the screws just below surface to prevent trowel snagging
obviously with tiling its not quite the same as skimming
so are you able to leave the screw heads proud (as far in without breaking the paper)
and just apply your addy over the heads as normal?

As whitebeam
I use them all the time!! Whenever I dot n dab

 

[Guitardedleon]

thanks for clarifying that guys.

so just flush but not so deep that it breaks the paper face.. got it!

 

[N A T]

Hi , I may be to late on this thread . The best thing for dot and dabbing on very bad walls is a product called THISTLE BOND IT made by british gypson . It's a heavy duty sealer with a grit finish , either blue or green . great gear sticks like REMOVED to a blanket . Also great to tile straight over .