Waterproofing in boiler room, basement level.

[Mazchi]

Hello

I will be renovating the boiler room in the future. Currently, it has untreated aerated concrete walls and an untreated concrete floor. There is a floor drain in the room.
The house is from '73 and has an uninsulated slab on grade. The boiler room is located on the ground level (basement level) in the corner of the house.

Now to my question: Should one have a waterproof membrane on the floor?
I'm not entirely keen on sealing the floors in the basement when it's an uninsulated slab. I don't have any significant moisture migration as far as I can see, but it probably never gets completely dry with this type of construction.

The room borders two other rooms: the bathroom and the laundry room. This means that a fairly large contiguous area will have a moisture-proof floor.

 

[injonil]

No, why is that?

 

[Mazchi]

The idea was that there is a floor drain there, meaning water that can flow on the floor.

 

[injonil]

Concrete withstands water.

 

[Mazchi]

But I know that. However, concrete is not dense. What I wonder is if there are any requirements, or how it's usually done when you have a foundation like mine.

 

[SBH]

you can "oil" or paint (with an "open" paint) the floor, but absolutely do not apply a waterproof layer.

 

[Mazchi]

actually considered tiling the floor. But as I thought then, no waterproofing.
Thanks for the answer.

 

[SBH]

If you are going to lay tile, think about what adhesive and grout you will use. Regular adhesive or grout is not suitable. It should preferably be frost-resistant.