Thinnest drylining solution

[sam101]

Hi, I'm wondering how to achieve a good finish on a block work internal wall in the thinnest way possible. So here's my question...

I have a narrow doorway leading into a narrow vestibule to a bedroom and I want the door to open inwards. The walls of the vestibule are currently a very thick, distressed and crumbling plaster. So I want to take off the plaster and make the vestibule as wide as possible. Is there any reason I could not knock all the plaster off and then dot and dab 6mm glassroc multiboard on? Then tape the corners and finish with compound? Also...if dot and dab is too thick/unstable is there any reason not to use a tiling trowel to comb on the plasterboard adhesive, thereby achieving more suction and a more even finish? I know 6mm multiboard is usually used for stud work, has anybody used it for dry lining? And can anybody forsee any problems with this?!!!

 

[stevethespreader]

For this to work your blockwork will have to be nice and straight as 6mm glass rock will bend dip or bulge to the shape of the wall its not made for dot and dabbing and is used a lot for curved work ,this is my oppinion I've never seen it used in this type of application and am saying how I think it will react as such

 

[clive12345]

You could plaster it with bonding coat , then skim it .
If the existing block , brick ,is any good ,total thickness of plaster would be about 6 mm .