straw walls?

[Just Rizzle]

got a job starting Tuesday the outer walls are plaster board dot and dab on to breeze block which we intend to rip out and replace the internal walls are 75mm thick and are STRAW house built by large national builder in past 15yrs the bath end is against the straw walls and the tiles are bulging off wall due to moisture damage.
our plan is to strip off tiles and fix hardy backer board with addy and mechanical fixings to part of wall and to stud out to make a feature to hide pipes and waste
has any body come over these walls befor?

 

[White Room]

Stramit board I believe Ray...

 

[Just Rizzle]

Stramit board I believe Ray...

I would call it some thing else lol

 

[Chalker]

If they are flat, you can get away with slurry coating, otherwise it might be easier to s re 2 x 1 timbers to the face. You can get a very secure fastening by directly screwing the timbers to the straw, with coarse threaded no12 screws.

 

[Andy Allen]

Who built the house?
Was it the 3 little pig's. ...lol

 

[Dan]

^ I was thinking that!

 

[Just Rizzle]

Who built the house?
Was it the 3 little pig's. ...lol

could of been persimmons I think?

 

[AliGage]

A lot of the houses in social housing developments in the last 30 years used prefabricated straw internal walls. It's fairly strong and economical.
A lot of the township homes around Peterborough have them.
You can get a good fixing to them though. If you're fixing timbers to build a box work on them pilot drill with a 3mm and squire in a little silicone, no nails etc before screwing in. The glue makes a fairly effective rawl plug for you. A bead on the back of the timber too.

Failing that, to board flat, cut out what you can of the bulge and comb on board adhesive with an 8mm notch and fix your board of choice.

 

[Dan]

Sound like you've got a bit of experience with it then @AliGage?

 

[AliGage]

I guess so Dan. I'd say I've probably done a good 20+ bathroom installations over the years where I've come across straw partitions. Most recent was early April this year.

 

[AliGage]

Not as bad as "egg box" ones though! So could be worse @RayTheTiler