ᐅ Leave existing wooden floor in bathroom without additional layers?
Created on: 8 May 2017 16:17
A
Altbau1930
Hello everyone, I’m new here (please forgive any beginner mistakes).
We are taking over a house from the 1930s from relatives, which is in good condition and has always had any necessary repairs done promptly.
The house has two floors plus a basement. The ceilings on the first and second floors are wooden, so the original floorboards are still in place there. Their condition is good, but of course we need to sand and seal them all again to make them look nice.
On the first floor, we want to build a bathroom in a room that has so far been used “conventionally” (office/children’s room, etc.). The necessary water pipes can be easily routed from the next room, and the entire house’s electrical system will be updated by a professional company anyway.
In some instructional videos, I saw that you can build a bathroom on a wooden floor with various floor build-ups (impact sound insulation, OSB boards, Fermacell boards, sealants, possibly tiles). What concerns me is the height of the entire structure, which would end up about 100mm (4 inches) higher than the original floor. Also, there would be a small step at the transition. Additionally, the extra load on the ceiling should be kept as low as possible.
Is it not possible to sand and treat the original floor (so it looks nice in the end) but also seal it to install the bathroom there? Of course, no moisture should penetrate the floor later, that’s obvious. The walls will be tiled.
Does anyone have tips for my plan, or is this simply not feasible? How have you solved similar issues?
Thanks in advance!
We are taking over a house from the 1930s from relatives, which is in good condition and has always had any necessary repairs done promptly.
The house has two floors plus a basement. The ceilings on the first and second floors are wooden, so the original floorboards are still in place there. Their condition is good, but of course we need to sand and seal them all again to make them look nice.
On the first floor, we want to build a bathroom in a room that has so far been used “conventionally” (office/children’s room, etc.). The necessary water pipes can be easily routed from the next room, and the entire house’s electrical system will be updated by a professional company anyway.
In some instructional videos, I saw that you can build a bathroom on a wooden floor with various floor build-ups (impact sound insulation, OSB boards, Fermacell boards, sealants, possibly tiles). What concerns me is the height of the entire structure, which would end up about 100mm (4 inches) higher than the original floor. Also, there would be a small step at the transition. Additionally, the extra load on the ceiling should be kept as low as possible.
Is it not possible to sand and treat the original floor (so it looks nice in the end) but also seal it to install the bathroom there? Of course, no moisture should penetrate the floor later, that’s obvious. The walls will be tiled.
Does anyone have tips for my plan, or is this simply not feasible? How have you solved similar issues?
Thanks in advance!
Altbau1930 schrieb:
The special aspect of our project is that we want to install a bathroom in a room that previously was not a wet area. I had already gathered that.
Altbau1930 schrieb:
As mentioned, the room has wooden floorboards, on which the new bathroom floor structure is to be built. My suggestions about how this was traditionally done (or how it might have been done in the existing wet rooms of this house) were also meant to encourage considering building the floor either as a substrate in this way or even using such materials as an alternative surface.
Unless the house is to be remodeled in a way that denies its original period, this could add a special character.
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Addendum:
When using a timber floor construction with load-bearing joists, it is always recommended to use a prefabricated shower base (due to the necessary waterproofing).
For bathtubs, a structural engineer or (which is often more effective in practice) a carpenter should be involved. They can, if necessary, install additional load-bearing joists where the load requires it!
This also applies to shower bases. After all, you don’t want to be jumping happily in the nude while showering and fall through to the floor below...
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Regards, KlaRa
When using a timber floor construction with load-bearing joists, it is always recommended to use a prefabricated shower base (due to the necessary waterproofing).
For bathtubs, a structural engineer or (which is often more effective in practice) a carpenter should be involved. They can, if necessary, install additional load-bearing joists where the load requires it!
This also applies to shower bases. After all, you don’t want to be jumping happily in the nude while showering and fall through to the floor below...
-----------
Regards, KlaRa
A
Altbau193015 May 2017 16:46KlaRa schrieb:
You definitely don’t want to be in a good mood and in your birthday suit when you fall through the ceiling into the floor below while showering....
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Regards, KlaRaThat would indeed be very unpleasant... :p