marine ply in the bathroom???

[raeman]

We are modernizing our bathroom, the floorboards are not up for it. With it being a bathroom and hope avoiding water damage in the kitchen below, i would like to completely seal the floor. One of the ways I hope is to lay 8x4 ft marine ply sheets down 22mm. My question is :-

Is this overkill?
could i use thinner ply?
What would the right thing to do?

 

[masona]

Is this overkill?

No providing you remove the floorboards

could i use thinner ply?

You can go down to 19mm exterior or WPB plywood if you want to.

 

[raeman]

thank you for your comments....

obivousley this my first time ito the fold, would it be wise to use protection under this layer, such as a vapour screen ?

below is the kitchen where I have installed sunken haleogen 240 lights, not quite sure of the depth but i think its about 7inches, theres also central heating pipes.
is there a web site that provides picture or more info?


raeman

 

[masona]

obivousley this my first time ito the fold, would it be wise to use protection under this layer, such as a vapour screen ?

I can't really see the point because water will always find way through anything if you're careless! A ceramic floor tiles will make the floor more waterproof.

below is the kitchen where I have installed sunken haleogen 240 lights, not quite sure of the depth but i think its about 7inches, theres also central heating pipes.
is there a web site that provides picture or more info?

Not sure what the question is?

 

[mike004]

>We are modernizing our bathroom, the floorboards are not up for it. With it being a bathroom and hope avoiding water damage in the kitchen below<

Could you clarify? Are the existing floorboards rotten? Is water getting through to the kitchen below?

I would imagine the first step is to look at bath/shower/hand basin/WC seals.
Then surely a bath mat for when you step out of the bath would be OK?

Mike

 

[raeman]

Some of the floorboards are split down their lengths; some of them were taking water damage until I'd exposed them and removed the cause, I found it expensive to replace because the thickness of the boards are below regulation. I was trying to give some backgroud info on the construction barrier between the bathroom and the kitchen.