Hello,
we are currently planning a single-family house on a plot with a south-facing slope. The design includes a partially underground basement that is fully below ground level on the north side and completely above ground on the south side.
However, we are quite uncertain whether to choose a masonry basement (brickwork with bitumen thick-layer membrane) or a concrete basement.
A geotechnical survey is not yet available, but for nearby plots, the load case temporarily accumulating seepage water has been identified.
Bricks would be advantageous due to the lower cost, better thermal insulation, and potentially improved indoor climate. Concrete primarily offers more reliable waterproofing. A compromise solution has also been suggested—concrete in the north and brick in the south. I am concerned about possible differential settlement in this case. Are these concerns justified?
The garage is directly adjacent to the house. We might also cellar the garage, which would be used for pellet storage and as a tool shed. Both the garage and its basement should be outside the thermal envelope of the house. What is the general opinion on this? Is it practically possible to avoid thermal bridges in such a configuration?
I would appreciate any suggestions you could offer.
we are currently planning a single-family house on a plot with a south-facing slope. The design includes a partially underground basement that is fully below ground level on the north side and completely above ground on the south side.
However, we are quite uncertain whether to choose a masonry basement (brickwork with bitumen thick-layer membrane) or a concrete basement.
A geotechnical survey is not yet available, but for nearby plots, the load case temporarily accumulating seepage water has been identified.
Bricks would be advantageous due to the lower cost, better thermal insulation, and potentially improved indoor climate. Concrete primarily offers more reliable waterproofing. A compromise solution has also been suggested—concrete in the north and brick in the south. I am concerned about possible differential settlement in this case. Are these concerns justified?
The garage is directly adjacent to the house. We might also cellar the garage, which would be used for pellet storage and as a tool shed. Both the garage and its basement should be outside the thermal envelope of the house. What is the general opinion on this? Is it practically possible to avoid thermal bridges in such a configuration?
I would appreciate any suggestions you could offer.
mibe2500 schrieb:
@11ant:
I disagree with you. The moisture barrier you "proposed"That was not a proposal from me, but merely a simulation—putting the thinking out loud—about what might be going through the minds of different professional groups. Simply to understand why one says this and another says that—everyone considers their approach "correct." I belong to the concrete basement camp.
mibe2500 schrieb:
@11ant:
and secondly, I have never seen anyone install a moisture barrier in every bed joint.That is why I said "possibility"—potentially, after each course, there is the opportunity to install one. Using a moisture barrier between every course at the same time would, of course, fall into the category of "too much doesn't help anymore, it is simply more well-intentioned (rather than well done)." That would, of course, be a foolish idea.
Unfortunately, among contractors, the mindset is often "how do I botch the work so that the incubation period of the damage is longer than the warranty period"—that is their definition of a Pareto optimum. Perfect quality is a naive expectation from clients that only some contractors aim for, but probably not the majority.
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