Thread: 4.5mm durasheet - ok for wet area tile?

G'day Jim,

The manufacturer of Durasheet, BGC, recommends another of their products, Duraliner, in 6mm thickness for wet areas and tiling.

They recommend Durasheet for external applications.

Hi there Jambo000

Normally 6mm is the go, the 4mm stuff is obviously not as tough, so if you fell agaist the tiled surface it might not stand up so well. Villaboard is anoth 6mm wet area rated product from James Hardie.

Thanks for the reply's - i'm not worried too much about the strength of the board as i'll be fitted on top of plasterboard. I'm more worried about it's waterproofing abilities. When i removed the existing tiles i found them attached to the same 4.5mm board , they has been there a good few years and appeared to be fine as far as waterproofing is concerned.

Hi Jim,
As the others said 6mm is the go for tiling onto. It is recess edged for flush jointing so you can tile without getting deviation in the tiles on the joint area.

Good luck
Bob

Note that you still need the correct plaster behind and a waterproof layer over the top. The CS will withstand water without falling apart but it still seeps through ... it isn't a barrier so to speak.

I have been using Durasheet for the current reno in non critical jobs becuase once the sheet gets wet it has tendancy to shatter and crack. Hardies products are much more durable.

I've replaced the durasheet with the duraliner instead , reading the specs on their website it makes perfect sense and of course , i don't wanna do this job again! Reference the 'waterproof' layer , what would you recommend i use?

I have used http://www.crommelin.com.au/ which you can get from Bunnings. So far it has performed OK.