Expanded clay: advantages and disadvantages, thickness, suppliers

  • Erstellt am 2023-01-17 10:29:08

WilderSueden

2023-01-18 10:38:24
  • #1
Decentralized fans can also be retrofitted with relatively little effort. Well, manually ventilating 3 times a day with complete air exchange means 3 air changes. A minimum air change rate of 0.5/h is recommended, which amounts to 12 air changes or 1.2 lost volumes of air. From this calculation, you can also see how impossible it is to achieve similar air quality with window ventilation. No one ventilates 12 times a day.
 

11ant

2023-01-18 12:45:34
  • #2

Now don’t be ungrateful: You know the semi-detached neighbors and talk to each other. The not exactly average / usual, but also not exactly rare semi-detached house builder has to come to terms with getting to know the buyer of the other half-plot in three years and "being allowed" to insulate the "shared" wall as an exterior wall until then. Besides, I imagine that Schwabenhaus wouldn’t have suited you price-wise either (?)

Where did I overlook the reasons why the timber frame house is fundamentally out of the question? Incidentally, anyone who blindly wouldn’t deviate an inch from the line of questioning searching for answers without the slightest sideline added value would be in the wrong forum here. Here "the whole picture" is usually considered. That may be due to the experienced discussants who often already live in (not always their first) owner-occupied home. Forcing one’s fellow humans to run against walls with open knives is something that, at most, cynics could be "expected" to do ;-)

Now just briefly about my not yet "processed" post #17:

With the suggestion "shell house" I wanted to point out the possibility to use the same "shell builder" as the half-neighbor even if you want to choose different contractors for finishing trades and/or a significantly different standard. DIY is not necessarily involved. "Clever" means something similar to "knorke," that someone is "smart," so "a clever guy." And such a person would also be able, even with different building depths, to achieve largely parallel rooflines. And no, I am honestly surprised that with only twelve meters you are still building more depth than the half-neighbors. Yes, share the plans – gladly also those that you consider imperfect, we can sort them here (not me, I’m no great drawer, that’s more Katja, Yvonne, RomeoZwo, and so on, as you have surely noticed).


Basically, it is "the same stuff from the ingredients," although of course the wall panels are produced differently (lying down, but you can see that in the video on the Lechner Massivhaus website) and with the consequence of a wall inside surface that is even smoother rolled compared to the plan stone top side. So technically the "same content," but "more ready for wallpapering." Incidentally, I live in 30 cm lightweight concrete and have no impression that it would be equivalent with just 24 cm porous tiles. Regarding the idea of building with wall panels, I quote myself from the Green Thread: wall panels "in the batch size ‘half a semi-detached house’ are pretty much a joke in a bag, at least far above the boundary of jesting."


The regulations are the same, and as far as I know, controlled mechanical ventilation is still optional for everyone. Presumably, Lechner Massivhaus (are you actually planning to build with KlimaPOR? – KlimaVER would not be expanded clay but an alternative from them) simply has not integrated controlled mechanical ventilation into their system (Core not either, they then advise controlled mechanical ventilation in the decentralized variant). Incidentally, on Lechner Massivhaus you also see a project "Wohnen am Sonnenwald" with semi-detached houses which, although described as having "solid walls," are shown in the floor plan drawings as "double-walled" like external thermal insulation composite systems.
 

motorradsilke

2023-01-18 16:57:36
  • #3

And with low heating costs despite only 36cm wall thickness. And so far (moving in October 21) without any cracks. And despite construction without ventilation with perfect humidity between 40 and 60%, without mold in any corners. And no, we do not ventilate 12 times a day, 2 to 3 times is completely sufficient, our house is also designed so that air can flow in all directions. And of course the front door is opened several times a day.
 

Bobby007

2024-01-07 21:06:01
  • #4
We are building in the Eifel and our shell builder would like to build with pumice stone. However, we do not know anyone with experience and cannot make sense of the designation HW2, 010. The exterior walls are to be 36.5 cm thick, the interior walls 24 cm. Can someone tell us something about this and maybe has also built with pumice themselves? We would really appreciate any information.
 

jens.knoedel

2024-01-07 23:23:13
  • #5

My previous owner. Mid-60s.


These are presumably HW plan solid blocks with a strength class 2 and 0.10 W/mK – so very well insulating.

Something like this:
 

11ant

2024-01-08 02:11:57
  • #6
Did you move here? - the natives in the Eifel and the Pellenz all the way over to the Neuwied Basin have the experience of preferring this local building material for centuries. I myself also live in it, monolithic, even 30 cm thick due to the year of construction. Significant differences to expanded clay (from the resident's or user's perspective) are not known to me. Under the microscope ;-) there are some, but you don't notice them in everyday life. You are well advised to follow the shell builder's suggestion (see "11ant Steinemantra").
 

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