How to tackle this straw board wall?

[vrytir]

Hi everybody,

so I have finally started with destroying my old bathroom and now I have found this straw wall. I was thinking to tear this down and build new stud wall or to "glue" Tile mate backer board on this straw, which would be the easiest way to do it, but would it be the best way? The black spot in the middle is moulding straw which has been attacked by water penetrating through old tiles. What would you do in my place?

 

[vrytir]

And the pictures

 

[Muse2k8]

My thoughts would be to dry the straw and paint on that mould stuff you can get (can't remember the name) then render the straw before attaching backer or another suitable board.

But then this would be new to me so seek further advice and see if anyone else has a better solution.

If the straw can safely come out you might be easier to redo with new stud wall.

 

[steve187]

I would go for a new wall, never came across it before

 

[DHTiling]

Dry the wall and kill the mould. Then dry line it. You cannot just pull that type of wall construction down.

 

[Mike]

as with dave, i done one recently, it was a steel frame house built in the seventies, there was a huge cavity behind, no way of reboarding.

 

[DHTiling]

They are used for insulation and soundproofing. And a very strong wall.

 

[vrytir]

This wall seperate bathroom from bedroom, it is one piece block without cavity. So I should kill the mould(there will be something to buy at b&q or somewhere else) How should I dry line it?

 

[macten]

Also be careful when drilling into it if you have to - go slow and reverse the drill on the way out.

 

[White Room]

As said dry wall but kill the mould before anything else and then tank the shower area...