Hello everyone,
I hope this is the right forum for my issue; if not, please move it.
We are building a prefabricated timber frame house on a concrete slab. Initially, it was agreed that the house would be positioned 15cm (6 inches) above ground level, with a gravel bed as splash protection.
Now, the architects’ plans have been technically reviewed, with comments regarding the plinth height.
From my non-professional perspective, the plan does not seem to match this. According to the site plan, the finished floor level is only 13 cm (5 inches) above the pedestrian walkway. The top edge of the concrete slab appears to be level with the surrounding ground.
It seems there is a discrepancy. The architect refers to the 15 cm (6 inches) specification having been communicated to the construction company.
But then, doesn’t that mean all the height dimensions on the building plan are incorrect?
I might be wrong, but in my opinion, the plans need to be corrected. To ensure a slight slope away from the house, I would need a trench between the house and the pedestrian path.
Our architect does not seem willing to properly address this.
If the house is built according to the current plan, I believe we would have to install a significantly more complex recessed splash guard around the house, which is not what we want.
Am I missing something? Is my assessment wrong?
I hope this is the right forum for my issue; if not, please move it.
We are building a prefabricated timber frame house on a concrete slab. Initially, it was agreed that the house would be positioned 15cm (6 inches) above ground level, with a gravel bed as splash protection.
Now, the architects’ plans have been technically reviewed, with comments regarding the plinth height.
From my non-professional perspective, the plan does not seem to match this. According to the site plan, the finished floor level is only 13 cm (5 inches) above the pedestrian walkway. The top edge of the concrete slab appears to be level with the surrounding ground.
It seems there is a discrepancy. The architect refers to the 15 cm (6 inches) specification having been communicated to the construction company.
But then, doesn’t that mean all the height dimensions on the building plan are incorrect?
I might be wrong, but in my opinion, the plans need to be corrected. To ensure a slight slope away from the house, I would need a trench between the house and the pedestrian path.
Our architect does not seem willing to properly address this.
If the house is built according to the current plan, I believe we would have to install a significantly more complex recessed splash guard around the house, which is not what we want.
Am I missing something? Is my assessment wrong?
KingJulien25 Dec 2021 10:20Where do you see the height of the road / sidewalk?
This height plus the increase due to the slope plus 15cm (6 inches) must be the finished floor level / upper edge of the floor slab, as I understand you.
Apparently, the plan is 525.79 absolute, meaning the floor slab at the lowest point of the existing terrain.
Misunderstanding with the survey pole?
This height plus the increase due to the slope plus 15cm (6 inches) must be the finished floor level / upper edge of the floor slab, as I understand you.
Apparently, the plan is 525.79 absolute, meaning the floor slab at the lowest point of the existing terrain.
Misunderstanding with the survey pole?
Kalibri schrieb:
Therefore, the slab would be completely below ground level.
However, it should protrude 15cm (6 inches) above the ground. And it will: the top edge of the base slab is at the planned (and to-be-planned) ground level. The soon-to-be former ground level will only interest history students later, and the finished floor top edge will be positioned as desired above the finished terrain. Allowing the top edge of the base slab to already protrude by the mentioned amount above the ground (– what advantage would you have expected from that? –) would have meant building it (in my opinion technically unwise) on top of fill soil. My impression is that your planners and contractors know what they are doing – which not every homeowner can be sure of.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
KingJulien25 Dec 2021 12:2911ant schrieb:
The top edge of the finished floor will be at the desired height above the finished ground level.As I understand it, the interface between the base floor slab/finished floor should be 15cm (6 inches) above the final level. This is to avoid needing a deep foundation board.KingJulien schrieb:
I understood that the RFB/finished floor interface should be 15cm (6 inches) above the final level.I also understood it that way—that this was how the original poster envisioned it being executed. But if the planner had understood it that way, they probably would have just explained that this would not be the more practical option.https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Kalibri schrieb:
This is how it should actually look. The section view sensibly shows the finished site level – but it does not show the floor construction, only the raw concrete slab, and here the bottom edge of the slab (i.e., the top edge of the insulation under the slab) is level with the terrain.
Kalibri schrieb:
In my opinion, the 15cm (6 inches) is missing?
This step from the planned ground level to the finished floor is actually the floor and insulation. Or am I reading this wrong? While the section drawing shows the top edge of the raw concrete slab 15cm (6 inches) above the ground, the elevation drawing already shows the top edge of the finished floor at that point.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
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