kaskade wet room tray. 2mm out!!!!

[cone]

I'm installing a kaskade wet room tray and I'm 2mm out. The cascade tray is 28mm thick with a 6mm rebate for waterproof board to sit on but when I take out the floorboards so tray sits on joist, the floorboards are 20mm thick. This means if I sit tray on joist and put boards on top of floorboards, there'll be a 2mm slope away from the tray where tray meets board. I know Its possible to router 2mm out of joists but there full of broken nails and screws! So routering isn't an option. What I want to run by yous is I'm thinking of taking 2mm of the corners of underside of waterproof boards so it slips in nicely, wouldn't this be my best option because as of now, I can't think of anything else.

As for the kaskade, its my first time using this tray so hopefully everything goes to plan. Have worked with tilers before on other type wetrooms but never the kaskade. Another thing I'd like to know is where tray meets board, do I seal with ranking tape and tank this joint? Going to run a bead of sealer in the joint but thinking the tanking tape will give extra sealing. Reason why I'm asking is anything on the net about this tray isn't showing any tape along this joint.

All advice will be greatly appreciated.

 

[White Room]

I take it this is the tray your going to fit..http://www.kaskadewetroom.co.uk/howtotimber.html

 

[lizzardtong]

Set you saw at 2 mm cut groves 10mm apart and between screws nails etc than take chisel an hammer and notch out wood then take hammer and sort out metal bits.

 

[cone]

I take it this is the tray your going to fit..http://www.kaskadewetroom.co.uk/howtotimber.html

Yes thats the one whitebeam.

 

[cone]

Set you saw at 2 mm cut groves 10mm apart and between screws nails etc than take chisel an hammer and notch out wood then take hammer and sort out metal bits.

in theroy that sounds ok but in reality itll be a mess i would think.

 

[lizzardtong]

You can get multi purpose blade as i seen it in rage saws that cuts nailes ets

 

[cam_low]

Ive got a rage saw and would do exactly as described above. get on with it !

 

[White Room]

The tray looks similar to a Tuff2, I tanked the tray with a fleece membrane into the trap...did notice there is a mega adhesive for that purpose I would think it would need the same or is the trap water tight connecting to the tray.

Just re-read the instructions and the mega glue is for sticking the tray down and using for the extra noggins where required, I would tape between the tray and floor and perhaps extend any tanking further out where the shower may be open at one end, if thats how it's going to work.

 

[si.cleary]

I would make the extra effort to go around and cut 2mm groves and chisel out so it sits right.
Maybe use a multi tool in addition to the chisel. If you don't, then your compromising on what you want and it'll bug you!

 

[Perry]

The tray looks similar to a Tuff2, I tanked the tray with a fleece membrane into the trap...did notice there is a mega adhesive for that purpose I would think it would need the same or is the trap water tight connecting to the tray.

Just re-read the instructions and the mega glue is for sticking the tray down and using for the extra noggins where required, I would tape between the tray and floor and perhaps extend any tanking further out where the shower may be open at one end, if thats how it's going to work.

Mark never used no more ply. They say that two diluted coats of SBR makes it waterproof ?