Hello everyone,
I wish you a Merry Christmas and have a question right away.
We started building this month. It’s a single-family house with a concrete slab foundation and a garage, which we are having constructed by a local general contractor.
The concrete slab was poured on Thursday, and we inspected it today.
I’m wondering if there might be a mistake because I interpret the plans differently.
Maybe I’m completely wrong with my amateur observations, and I will speak with the general contractor in the new year. But at the moment, I’m pondering it, and maybe you can help put my concerns to rest.
Here’s the situation:
Our solid brick house is being built using a cavity wall construction and will be plastered on the outside (wall structure from inside to outside: 17.5cm (7 inches) Poroton brick, 18cm (7 inches) mineral wool insulation, 11.5cm (4.5 inches) Poroton brick). On the street side, the garage is set back by 25cm (10 inches).
However, the garage’s concrete slab extends slightly further forward than the house’s slab. To me, it looks like the slab is aligned with the load-bearing walls. That would make sense, but the facing wall also has to be built on the slab and cannot be “floating” in the air, right?!
Am I missing something here?
I’ve attached a drawing and a photo of the construction.
I’m very curious to hear your opinions.
By the way, our general contractor is responsible for the shell construction and the foundation slab.
Thank you ✌️
I wish you a Merry Christmas and have a question right away.
We started building this month. It’s a single-family house with a concrete slab foundation and a garage, which we are having constructed by a local general contractor.
The concrete slab was poured on Thursday, and we inspected it today.
I’m wondering if there might be a mistake because I interpret the plans differently.
Maybe I’m completely wrong with my amateur observations, and I will speak with the general contractor in the new year. But at the moment, I’m pondering it, and maybe you can help put my concerns to rest.
Here’s the situation:
Our solid brick house is being built using a cavity wall construction and will be plastered on the outside (wall structure from inside to outside: 17.5cm (7 inches) Poroton brick, 18cm (7 inches) mineral wool insulation, 11.5cm (4.5 inches) Poroton brick). On the street side, the garage is set back by 25cm (10 inches).
However, the garage’s concrete slab extends slightly further forward than the house’s slab. To me, it looks like the slab is aligned with the load-bearing walls. That would make sense, but the facing wall also has to be built on the slab and cannot be “floating” in the air, right?!
Am I missing something here?
I’ve attached a drawing and a photo of the construction.
I’m very curious to hear your opinions.
By the way, our general contractor is responsible for the shell construction and the foundation slab.
Thank you ✌️
F
fm-united25 Dec 2022 06:58Zubi123 schrieb:
The Poroton block is placed on the outer edge of the concrete slab.
Insulation and the external brick layer are only applied on the foundation. So in principle, that’s correct.
I’m just wondering how the garage exterior will be finished? Just plaster applied directly onto the Poroton wall?Okay – so you mean that an additional foundation will be constructed around the concrete slab, on which the outer shell will then be built?The garage exterior will only be plastered. Directly onto the 17.5cm (7 inch) block.
Zubi123 schrieb:
The Poroton brick is placed on the outer edge of the slab foundation.
Insulation and the external lining brick are only applied on the foundation. Which foundation? The slab foundation rests on the footing; otherwise, I don’t see anything here.
fm-united schrieb:
This is the official floor plan on which the implementation will be based. Everything that happens on site follows the construction drawings. What is outlined in your contract doesn’t initially concern the craftsmen. Therefore, first check the shell construction to see how it is described. Currently, it looks to me as if thermal insulation is assumed rather than a cavity wall. Or the setback may have been ignored for some reason. I would first measure the slab foundation to verify whether the external dimensions are correct.
F
fm-united25 Dec 2022 08:02K a t j a schrieb:
Which foundation? The slab rests on the foundation; otherwise, I don’t see anything.
Everything happening on the construction site follows the execution plans. What is outlined in your contract is initially not of concern to the tradespeople. So the first step is to look at the shell construction to see how it is described. At the moment, it looks to me as if thermal insulation is assumed rather than a cavity wall. Or perhaps the recess was ignored for some reason. I would first measure the slab to check if the exterior dimensions are correct.Yes, measuring it is definitely a good idea. Let’s see when I can get to it; the plot is not exactly nearby.
W
WilderSueden25 Dec 2022 10:40That doesn’t look right to me either. I suspect that something was simply done incorrectly with your wall construction. Contact the site manager, ask for clarification, and wait to see what response you get.
K a t j a schrieb:
Which foundation? The slab rests on the foundation, otherwise I don’t see anything.I can’t clearly see it in the photo, but the strip footing usually extends above the slab in this type of construction. The facing brick is then placed directly on the strip footing.
F
fm-united25 Dec 2022 11:21Zubi123 schrieb:
I can't see clearly from the photo, but the strip foundation usually extends beyond the slab in this type of construction. The facing brick is then placed directly on the strip foundation. If that were the case, shouldn’t the offset to the garage be visible?
Here are a few more photos showing the layout: you can see an offset in the strip foundations that could fit, but not anymore from the wall section that serves as a shield against the access point.
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