Insulate new construction 36.5 aerated concrete?

  • Erstellt am 2014-01-17 14:00:38

Nordlys

2017-02-05 21:05:13
  • #1


Well, almost always Ytong, Porit, Hansapor, Hebel....at least since around 2000.
 

Alex85

2017-02-05 21:05:25
  • #2


Yes and no. These are mostly not the conditions according to the Price Indication Ordinance. Especially since the Commerzbank tends to act as an intermediary.
 

Grym

2017-02-05 21:19:36
  • #3

So again, Commerzbank has an online calculator and if you consider that 2 months are offered there and in the branch 12 months of interest-free provisioning is given and for that an interest surcharge of 0.06 to 0.08 percentage points is justified, then the online conditions are also the conditions that were offered to us. If we had said on that day that we would do it, then those would have been our conditions.

The contract is then concluded between us and Commerzbank. Whether they resell the loan, no idea. Comdirect acts as the intermediary, do you mean that?

2.08% for 20 years
1.16% for 10 years
Each with 2% repayment, 2 months without provisioning interest, and 80% loan-to-value ratio

KFW 55 at 2.25% for 20 years with simultaneous higher repayment obligation as well as KFW-Eigentum at 1.50% for 10 years also with higher repayment obligation currently make no sense.

But that is only a marginal topic anyway.

Originally, the point is that in contrast to a monolithic wall, [WDVS] saves you almost nothing in energy costs. In my example above about 500 EUR over 50 years.

Compared to ventilation losses, windows, and hot water, the other items are peanuts.

Therefore, I do not decide between [KS+WDVS] or monolithic based on manufacturing costs or energy savings, but based on what I feel comfortable with for 50 years and more and where I know (!) that no major renovation or disposal costs are waiting for me.
 

11ant

2017-02-05 22:02:08
  • #4


When doubling the panels, not following the roof overhang to the shift of the exterior wall surface is probably a "classic". At least when the roof covering is not renewed.
 

Tego12

2017-02-06 13:22:19
  • #5


Statements like these are exactly your problem, why nobody took you seriously in the green forum. I don’t know whether you are just making up the numbers randomly or completely inventing them for fun, but you only need to google for 5 seconds and you’ll see that your figures are complete nonsense.

42.7% through ventilation... please what? No windows installed? (that would also explain the way too high heat losses through the windows).

With numbers like these, you can save yourself any calculation. Garbage in -> Garbage out. Aside from that, economic efficiency is not my point in the discussion. That a lot doesn’t pay off... absolutely agree with you. By the way, with us aerated concrete was the cheapest option, then sand-lime brick + ETICS, then our current clinker.

What I was getting at:
The blanket badmouthing of ETICS with arguments you read somewhere, which you sell as if it were expert consensus without ever citing any source.

Example:
You claim it is more likely that ETICS has to be renovated earlier than monolithic walls... Strange, the Fraunhofer study says that a higher percentage of damage was found on facades of monolithic systems. For example, they also have significantly more problems with thermal bridges. The ETICS itself lasts forever...

Ominous woodpecker... it definitely counts as facade damage, but almost never occurs. Wow, there are few documented cases on the internet... how can you build an argument on that?

Algae: much has already been said. Not a problem of ETICS facades, clinker and monolithically built buildings have it just as massively. It may appear slightly more often on ETICS, but the surrounding environmental influences matter much more (trees, biotopes, ...)

I understand that emotionally one might dislike plastic, but that is purely an emotional issue and we have discussed that here many times. You would then have to do without yogurt cups, toothbrushes, your couch in the living room, and a thousand other things. You even have direct skin contact with those or ingest them through food. ETICS is just inside the wall, no contact with the outside world...
 

Grym

2017-02-06 14:51:42
  • #6
19 windows are installed and the numbers have been determined by a specialist using a professional program. As far as I can check the entries, he has made no mistakes.

I have no problems with plastic, but if it is not necessary, then it is not necessary.

In the Frauenhofer study, the ETICS is rated so well because it was regularly maintained and renovated. That’s what I’m talking about: follow-up costs!!

A service life of 22 years until the first renovation is indicated. Determined on the 2-6 cm mini-ETICS from back then.

Other damage patterns are only present or more common with ETICS. Woodpecker, algae, cracks, bubbles, stains, etc.

There is no alternative in renovation, but in new construction, you don’t need to take any risks for 10 euros of heating costs per year, no matter how small they may be.
 

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