Hi everyone,
To visually separate our living room from the dining area, I’m currently planning to build a raised platform. Since I’m a carpenter, my idea is to construct a subframe using KVH (timber beams), cover it with OSB boards, and then apply a standard screed layer on top. The main reason for this is that the underfloor heating needs to work there as well; otherwise, we won’t be able to heat the room properly! (The house is still in the shell stage, so all options are open.)
The cavity between the KVH beams, which will be arranged at a 90° angle to each other, will be filled with Rockwool to help absorb some sound.
Does anyone have any constructive suggestions for improvement? Critical feedback is also very welcome!
Best regards
Schnail
To visually separate our living room from the dining area, I’m currently planning to build a raised platform. Since I’m a carpenter, my idea is to construct a subframe using KVH (timber beams), cover it with OSB boards, and then apply a standard screed layer on top. The main reason for this is that the underfloor heating needs to work there as well; otherwise, we won’t be able to heat the room properly! (The house is still in the shell stage, so all options are open.)
The cavity between the KVH beams, which will be arranged at a 90° angle to each other, will be filled with Rockwool to help absorb some sound.
Does anyone have any constructive suggestions for improvement? Critical feedback is also very welcome!
Best regards
Schnail
Schnail schrieb:
I don't want to offend anyone,You are quite funny... You asked for critical opinions among other things! Otherwise, I wouldn't have responded to a carpenter at all.
@Schnail .. if you had asked in one of the technical forum sections (Heating or Carpentry inquiries), our question regarding the usefulness of the platform might not have been appropriate. However, since you are in the planning/idea development phase, I also find the question about space division and the purpose of the platform interesting. Essentially, with large rooms, you are creating a room within a room.
Hello,
I assume you have enough ceiling height to build a raised platform like that.
I would definitely separate the heating circuits for the platform and the regular living room floor. Maybe someday you, or a future buyer of the house, will want to remove the platform again.
I see the transition from the “normal floor construction” to the platform as critical. There you have a major thermal bridge from the warm screed to the substructure of the platform. I would install a vertical separation layer with standard screed insulation there — at least one layer of 60mm (2.4 inches) insulation. A vapor barrier will also be necessary.
Do you have a basement?
Or is the KVH (timber frame) platform built directly on an uninsulated slab? In the latter case, I would be concerned that the KVH might start absorbing moisture and eventually rot. An energy consultant should definitely take a look at that. You don’t want to have the dew point inside the wood as you would in a poorly insulated wall. That won’t hold up in the long run.
If necessary, I might recommend using aerated concrete blocks as the substructure instead, even if that hurts your professional pride. They also provide additional thermal insulation and eliminate the thermal bridge from the “normal floor construction” into the KVH area.
I wouldn’t worry too much about sound insulation. Since you plan to add a regular screed layer on top, that should be sufficient.
Best regards,
Andreas
I assume you have enough ceiling height to build a raised platform like that.
I would definitely separate the heating circuits for the platform and the regular living room floor. Maybe someday you, or a future buyer of the house, will want to remove the platform again.
I see the transition from the “normal floor construction” to the platform as critical. There you have a major thermal bridge from the warm screed to the substructure of the platform. I would install a vertical separation layer with standard screed insulation there — at least one layer of 60mm (2.4 inches) insulation. A vapor barrier will also be necessary.
Do you have a basement?
Or is the KVH (timber frame) platform built directly on an uninsulated slab? In the latter case, I would be concerned that the KVH might start absorbing moisture and eventually rot. An energy consultant should definitely take a look at that. You don’t want to have the dew point inside the wood as you would in a poorly insulated wall. That won’t hold up in the long run.
If necessary, I might recommend using aerated concrete blocks as the substructure instead, even if that hurts your professional pride. They also provide additional thermal insulation and eliminate the thermal bridge from the “normal floor construction” into the KVH area.
I wouldn’t worry too much about sound insulation. Since you plan to add a regular screed layer on top, that should be sufficient.
Best regards,
Andreas
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