dot n dab boarding....

[Mr Tiler]

what is the correct method of dot n dab boarding onto plasterd wall... Currently in the process of doing me moms bathroom. Ive moved the bath over and there is a gap either end and a 12.5 mm board either end will sort all my problems... I plan to prime the plaster, board and then tile.... But can I use the adhesive I plan to use for the tiles or do I need drywall adhesive? and if my method is incorrect please let me know cheers.

 

[Qwerty]

Tile adhesive can be used depending on what it is. Not all are suitable

 

[Qwerty]

What are you using?

 

[cam_low]

You could always strap the wall out with 2x1 then board

 

[Mr Tiler]

What would be prefferable then mate? I havnt brought any materials yet so all comments are welcome. Cheers

 

[AliGage]

What is the gap and what is the wall made of?

 

[andy8758]

Hi Mr Tea Bag - I would recommend screwing the board right into a secure background - e.g. brick/block wall or if drywalled onto a framework find the 4x2 timber supporting the existing board and drill through onto that. Consider - existing drywall (plasterboard) may be nailed not screwed - you are adding weight to the existing wall - once tiled will it take the weight? You can still dob and dab to space the board to fill the gap - but screwing the board securely is always safest bet. Good luck Andy C

 

[Mr Tiler]

Hi Ali the walls are plasterd and hollow so my untrained guess is stud wall with boards and then skimmed the work was done by the council a few months back and the grouts already going mouldy and im guessing its because they tiled and grouted same day... The gap each end is 11 mm so 12.5 mm board will let me tile straight off the bath cheers

 

[Mr Tiler]

Thanks Andy is there any info on here about finding those studs as I doubt one of me moms fridge magnets would be any good lol.. And what size screws roughly would be used cheers mate

 

[andy8758]

drill pilot holes - use tape to locate stud either side. keep going until you find all the studs. Alternatively a battery operated stud detector device.

 

[prceramics]

Plasterboard adhesive is a lot cheaper

 

[taffy]

screws can pull out... dot and dab it with drywall adhesive, this way you can plumb it up spot-on where as screwing your just following what's already there, if there is already plasterboard there and if it's not solid you can always rip out them out and sort that with drywall adhesive

 

[Martyn Leeds]

Have we found out yet if the existing plasterboard wall is stud framed or dot & dabbed??

 

[widler]

Andy,what's up with 'nailed' plasterboard ?
Just curious like,as nails have been used for a lot lot longer than screws with no problems !'

 

[andy8758]

screws can pull out... dot and dab it with drywall adhesive, this way you can plumb it up spot-on where as screwing your just following what's already there, if there is already plasterboard there and if it's not solid you can always rip out them out and sort that with drywall adhesive

Screws don't pull out if they are properly fixed and plugged into solid block work or brick work and they are always more secure than dob and dab. Anything fixed to a D & D wall must be adequately screwed into the substrata beneath the drywall and D & D.