deezey
2022-07-26 14:15:08
- #1
Hello everyone,
I have been a silent reader for a while now. I was able to answer some questions and read helpful information from this great forum.
But now it has come to the point where I have a few questions.
Long story short – I will try to describe my problem as briefly as possible.
Since we built our house with a prefab house provider, the architect’s services only included the house itself and the preparation of the building application.
What we were still missing were the structural calculations and plans for the garage.
Unfortunately, as it turned out during the construction of the garage, we commissioned these externally with the wrong party.
Due to a misunderstanding/difficult communication with the structural engineer, it was no longer possible for us to create the recess for the connection to the driveway/the adjacent paving when pouring the base slab.
To avoid making this post too long, I’ll leave this part out for now. I can add it later if relevant. *
On site, it might have been possible to “cut out” the already embedded baskets* at the corresponding point, but the shell builder did not agree to this.
So the base slab was made without a recess.
Exactly the connection/transition to the paving/driveway is now the problem. As I have read here already, there are others with a similar problem.
The driveway itself is already paved. A drainage channel is located a few centimeters away from the base slab. For the height of the driveway/channel at this point, a floor buildup in the garage of 6 cm screed (bonded screed without slope) was assumed. The driveway already has a slope towards the garage due to height specifications. The channel is positioned so that there is also a slight slope in the transition from the garage (whatever the solution) to it.
Here is a list of the options I have found so far (some partly from this forum):
Let the screed run to the outer edge of the garage / lay granite slabs / halve paving stones in height and lay them in mortar (high effort) / fill with epoxy resin mortar / cover with sheet metal (of course filling the gap) / break out the base slab in this area (including reinforcement, very high effort)
Our favorite (if possible, therefore I’m going into a bit more detail here):
Now some questions arise regarding this variant
Sorry for the long text. We would now only solve this as best as possible.
Is this solution even possible considering some things and the proper execution?
For better understanding, I have attached a rough sketch.
[ATTACH alt="Skizze1.jpg" type="full"]73534[/ATTACH]
I do not want to make this already very long text even longer – but there will definitely be further questions. Also regarding screed, stainless steel angle bracket & co.
I look forward to your answers.
Many thanks in advance.
Best regards
Paddy
I have been a silent reader for a while now. I was able to answer some questions and read helpful information from this great forum.
But now it has come to the point where I have a few questions.
Long story short – I will try to describe my problem as briefly as possible.
Since we built our house with a prefab house provider, the architect’s services only included the house itself and the preparation of the building application.
What we were still missing were the structural calculations and plans for the garage.
Unfortunately, as it turned out during the construction of the garage, we commissioned these externally with the wrong party.
Due to a misunderstanding/difficult communication with the structural engineer, it was no longer possible for us to create the recess for the connection to the driveway/the adjacent paving when pouring the base slab.
To avoid making this post too long, I’ll leave this part out for now. I can add it later if relevant. *
On site, it might have been possible to “cut out” the already embedded baskets* at the corresponding point, but the shell builder did not agree to this.
So the base slab was made without a recess.
Exactly the connection/transition to the paving/driveway is now the problem. As I have read here already, there are others with a similar problem.
The driveway itself is already paved. A drainage channel is located a few centimeters away from the base slab. For the height of the driveway/channel at this point, a floor buildup in the garage of 6 cm screed (bonded screed without slope) was assumed. The driveway already has a slope towards the garage due to height specifications. The channel is positioned so that there is also a slight slope in the transition from the garage (whatever the solution) to it.
Here is a list of the options I have found so far (some partly from this forum):
Let the screed run to the outer edge of the garage / lay granite slabs / halve paving stones in height and lay them in mortar (high effort) / fill with epoxy resin mortar / cover with sheet metal (of course filling the gap) / break out the base slab in this area (including reinforcement, very high effort)
Our favorite (if possible, therefore I’m going into a bit more detail here):
[*]We still have concrete slabs (60x40x4) left from our terrace, these have the same color tone as our block steps and would therefore fit well color-wise (a matter of taste) with the rest of the design.
[*]These would then be laid firmly bonded in mortar, like the paving (only without the complicated halving here), with appropriate joints (to each other, channel and angle bracket)
Now some questions arise regarding this variant
[*]If you lay them firmly bonded on frost-resistant mortar or flexible adhesive (approx. 1–1.5 cm) you would have air under the slabs to the base slab, do they then have a chance (durability, etc.)?
[*]Our mason friend says you would have to create a “tray” beforehand, meaning waterproof the area from the channel to the angle bracket (mineral waterproofing) and then lay the slabs on this waterproofing. So that the slabs don’t loosen due to water penetration. Does this waterproofing bring anything? Or what does it achieve? I mean, if I don’t grout the slabs waterproof (which would be possible since there is a slight slope to the channel), water penetrates to the waterproofing and presumably remains “rather” under the slabs?
[*]Do I have to waterproof the angle bracket at all? Is water not “irrelevant” to cement screed? Does water even penetrate in the composite between base slab and screed? It is clear that the edge areas must be sealed and the screed sealed (epoxy, concrete paint, tiles, …).
Sorry for the long text. We would now only solve this as best as possible.
Is this solution even possible considering some things and the proper execution?
For better understanding, I have attached a rough sketch.
[ATTACH alt="Skizze1.jpg" type="full"]73534[/ATTACH]
I do not want to make this already very long text even longer – but there will definitely be further questions. Also regarding screed, stainless steel angle bracket & co.
I look forward to your answers.
Many thanks in advance.
Best regards
Paddy