ᐅ New Single-Family House Construction (KFW70) / Aerated Concrete vs. Sand-Lime Brick / Which Material to Choose?
Created on: 31 Jan 2014 08:27
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Lacos
Hi everyone,
We are planning to build with a general contractor and have collected some offers. Some use aerated concrete, others use calcium silicate bricks. Some combine the two, using aerated concrete for the exterior walls and calcium silicate bricks on the inside.
What would you recommend? Is this combination of aerated concrete on the outside and calcium silicate bricks on the inside common and preferable?
Should we be concerned about cracks due to the different expansion properties of the two materials, or is this not an issue with proper construction?
What would you currently choose to build with or have built—what is your preferred building material?
Thank you in advance,
Lacos
We are planning to build with a general contractor and have collected some offers. Some use aerated concrete, others use calcium silicate bricks. Some combine the two, using aerated concrete for the exterior walls and calcium silicate bricks on the inside.
What would you recommend? Is this combination of aerated concrete on the outside and calcium silicate bricks on the inside common and preferable?
Should we be concerned about cracks due to the different expansion properties of the two materials, or is this not an issue with proper construction?
What would you currently choose to build with or have built—what is your preferred building material?
Thank you in advance,
Lacos
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perlenmann3 Feb 2014 13:18@€: What is your graphic supposed to show us? That you picked a very large or poorly insulated house as an "extreme" example with 15 MWh/year (megawatt-hours per year) to highlight huge differences?
Also, I don’t understand why a gas condensing boiler would show such a big difference due to poor planning. Gas condensing boilers are much more tolerant to planning errors. How do you explain that?
Also, I don’t understand why a gas condensing boiler would show such a big difference due to poor planning. Gas condensing boilers are much more tolerant to planning errors. How do you explain that?
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Bauexperte3 Feb 2014 14:30Hello €uro,
I have to work sometimes as well...
It has recently become clear that Alice Schwarzer didn’t understand the analogy of the glass house.
In my post, it clearly states:
Since when is external expertise dependent? Once again, for you, this time clearly formulated: the vast majority of our clients bring the expert(s) they trust; mostly unknown to us and always welcome.
I cannot do that because I have no insight into the expert’s reports => the contractual relationship exists between our clients and their expert, as I have no knowledge either of our clients or internally about any lasting disputes between the external expert and our site managers, I do not make any consumption guarantees and consequently do not have to engage in these discussions.
The PHPP files that interest you and that I have on hand are usually around 4 MB in size — starting with the quick guide and ending with the energy certificate, but I cannot upload the Excel file.
One sentence is sufficient, extending the house rights to the externally involved expert. For any further possible dissatisfaction, either the client or the MEP planner would raise issues; I am pleased to say I cannot provide this.
Regards, Bauexperte
I have to work sometimes as well...
€uro schrieb:
So what? Guttenberg and company even have doctorates, the ADAC, TÜV etc., various graduates in their dependent followings!
It has recently become clear that Alice Schwarzer didn’t understand the analogy of the glass house.
In my post, it clearly states:
Bauexperte schrieb:
You would certainly be surprised how many of our building projects are accompanied by external, qualified experts
Since when is external expertise dependent? Once again, for you, this time clearly formulated: the vast majority of our clients bring the expert(s) they trust; mostly unknown to us and always welcome.
Bauexperte schrieb:
Now finally provide the contract example from Schenk building consultancy, where homeowners could expect legally binding corrections based on the accompanying qualified expertise!
I cannot do that because I have no insight into the expert’s reports => the contractual relationship exists between our clients and their expert, as I have no knowledge either of our clients or internally about any lasting disputes between the external expert and our site managers, I do not make any consumption guarantees and consequently do not have to engage in these discussions.
The PHPP files that interest you and that I have on hand are usually around 4 MB in size — starting with the quick guide and ending with the energy certificate, but I cannot upload the Excel file.
Bauexperte schrieb:
If the qualified accompaniment is so solid, it should actually be a piece of cake to reflect this accordingly in the contract design
One sentence is sufficient, extending the house rights to the externally involved expert. For any further possible dissatisfaction, either the client or the MEP planner would raise issues; I am pleased to say I cannot provide this.
Regards, Bauexperte
Perlenmann schrieb:
..... Especially gas condensing boilers are much more forgiving when it comes to incorrect planning.... Why?Best regards
D
DerBjoern4 Feb 2014 10:03€uro schrieb:
Why?
Best regards.Because with modern condensing gas boilers, installation costs and consumption do not get as out of control with incorrect sizing as they do with heat pumps.
D
DerBjoern4 Feb 2014 11:38Perlenmann schrieb:
Björn, you really did something, you’re not supposed to die ignorant.? – I’m having trouble understanding your post...