Using Tyvek on a bathroom remodel

[alwayssomething]

I'm remodeling my bathroom which included taking the walls down to the studs. One of the walls in the bathroom area is an exterior wall of cinder block covered by brick. On the cinderblock there are 1x3 slats that the wall board is was screwed into and on top of that a thin foil like wrapping. I'm at the putting back together stage and was planning on putting tyvek on the slats before putting the wall board on for at least a little barrier. I know this isn't the usual way to use tyvek, basically on the inside of the wall, but it help to have the vapor barrier? would it hurt anything by doing it this way? i'm assuming vapor barrier was the intent of the original foil wrapping.

I'm including a drawing to try to illustrate what I'm talking about if it doesn't make sense.

Thanks in advance!

[flickit]

I'm remodeling my bathroom which included taking the walls down to the studs. One of the walls in the bathroom area is an exterior wall of cinder block covered by brick. On the cinderblock there are 1x3 slats that the wall board is was screwed into and on top of that a thin foil like wrapping. I'm at the putting back together stage and was planning on putting tyvek on the slats before putting the wall board on for at least a little barrier. I know this isn't the usual way to use tyvek, basically on the inside of the wall, but it help to have the vapor barrier? would it hurt anything by doing it this way? i'm assuming vapor barrier was the intent of the original foil wrapping.

I'm including a drawing to try to illustrate what I'm talking about if it doesn't make sense.

Thanks in advance!
...you ought to check with the Tyvek folks first as this is used on exteriors and may be a health hazard if used on an interior wall. Why not use visquine?

[alwayssomething]

What's visquine?

[Unregistered]

TYVEK is NOT A VAPOR BARRIER. It is an air barrier that will allow moisture (water vapor) to go through.

Visqueen is just poly sheet plastic, I think 6 mils are heavier.

Another option if you can stand to loose an inch or 2 is to install extruded foam sheets. You will need to seal all of the gaps and edges so that there are no gaps.

But that is not only a vapor barrier, but will add R10 (2" EXP) insulation. Don't know what climate you are in.

[flickit]

What's visquine?
...buy at most hardware and builder stores. Comes in rolls and various thicknesses (in mils). 4 and 6 mils are popular thicknesses.