straw wall prep

[merit]

any one had experience of trying to prep with these walls of the devil
basically its compressed straw with a paper front much like plaster board
it had been skimmed when installed which i have scrapped off, leaving this paper face
the walls are made to suit dimensions of the house , so no timbers are used in their construction
options
prime with apd or other, test a tile on paper face, see if paper is adhered like plaster board
6mm hardi or other over the wall and plug and screw washers ect with full bed of adhesive,ive tryed with a plug and screw and you can get a fix
its above a bath with porcelain tiles
taking the wall down is not an option, landing and bedroom ajoin
thanks in advance

 

[White Room]

I would'nt trust the paper after stripping the plaster off, do you have enough space for plasterboard....

 

[bluesky]

nightmare and bloody heavy !
i was refitting a bathroom where it had got wet and ended up completely removing the straw wall and rebuilding it with studwork ,hardi on wet side and plasterboard on bedroom side , replastered bedroom -tanked bathroom wall where bath was . quite a lot of extra work involved on mine !
hard work getting wall out as so heavy - cut in 1/4 s in situ .
good luck