Sealing layer?

[memike]

Hello.

A quick question. I have a small guest toilet that includes a toilet and a sink.
I'm thinking of renovating it and wonder if a waterproof layer is required on the floor because of the floor drain for the toilet?

Best regards

 

[lazy rick]

The floor is wet zone 1 so sealing layer yes

 

[Stefan1972]

Otherwise, it's entirely up to you. It all depends on the expected lifespan and how you want the insurance to apply and how you stand if there is damage.

 

[memike]

The floor is wet zone 1 so waterproofing yes

Ok great, then subfloor, plasterboard and waterproofing. Should I also go up 50cm on the walls?

/Mike

 

[lazy rick]

I had driven with a 10-15 cm uppvik

 

[hempularen]

Formally, I think 5cm up the wall is enough.