Passive house, heating combination with solar, energy recovery, photovoltaics?

  • Erstellt am 2009-10-28 20:56:30

parcus

2009-11-27 23:06:47
  • #1
Hello,

gladly.

BUT chromate allergy is not called mason's itch for nothing. In allergy tests at dermatology clinics, chromates with 4–10% positive reactions are among the most common contact allergens in Germany.

The reason is the very high cement content in wood-concrete to achieve usable strength values.

Regards
 

Paulius

2009-11-28 00:19:40
  • #2
Hello parus,

I am really glad that I will plaster my wood chipboard walls with gypsum plaster. What is the cement content? The stones are quite light at 25/25/50 cm with 7kg.

Regards
 

parcus

2009-11-28 10:07:03
  • #3
Hello,

Wood(chip) concrete has densities in the range of 400 to 600 kg/m3

(I haven't checked where your used stone is located)

A 'medium-'compacted mixture consists of about < 25 mass percent crushed wood chips or sawdust, about < 65 mass percent hydraulic binder and water as well as possibly further additives.

Attention: the high proportion of cement is necessary so that the wood petrifies. If the proportion is not sufficient, then the lifespan of the material is greatly shortened, the wood gets mildew stains and rots away. (the plaster is not a vapor barrier here)

If you want to do something for your health, then check whether the plaster has a proper lime content, as lime acts antiseptically. (see the liming of pigsties)

In your case, of course, the microencapsulated latent heat storage materials in gypsum plaster are decisive.

But thank you for the topic, I will write something about it on my homepage.

Best regards
 

Paulius

2009-11-28 11:24:43
  • #4
Hello parcus,

I hope that you research your other information distributions better. But the spread of half-knowledge on this topic seems to be due to a lack of basics and reference works. Official building approvals, tests in the areas of fire protection, load-bearing capacity, diffusion behavior, rot, and all other facts can be found abundantly on the Internet.

Please research first and then write, otherwise this portal makes no sense. I find your other information about passive houses more meaningful. However, I consider the current implementation of passive houses to be improvable, as human beings and their habits are not sufficiently taken into account. More nature and less technology on the house yield surprising results.

Best regards
 

parcus

2009-11-28 11:46:39
  • #5
Hello,

I certainly will not get the information from advertising brochures of companies that serve exclusively marketing purposes.

Furthermore, extensive investigations were conducted by ETH Zurich in the years 2000 - 2001, which are available.

Oder soll das ganze eine Werbeaktion für die Produkte sein ?

Best regards
 

Bunnyguard

2010-02-01 15:02:56
  • #6
What just went through my mind recently during the wintertime is that I find the air in our apartment very dry. What happens now if I have a ventilation system with heat recovery in the new house, will the air be somehow humidified there or will it also be dry like with an air conditioner?

mfg
 

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