Grundaus
2021-03-24 10:25:33
- #1
a small photovoltaic system with 600 watts for self-consumption. costs under 1000.--€ and pays off relatively quickly
Old building 1971 - What should/must be renovated?
- Erstellt am 2021-03-18 14:15:14
basti009
2021-04-29 10:14:09
- #2
Thank you very much!
Please assess the following:
We have an ETICS of 5 cm. The facade was repainted in 2014.
I have never really looked closely at the facade, the color is great and the facade looks like new from a distance.
But now I was on the garage and noticed the following cracks (see pictures):
- Mini cracks in the grooves of the paint - actually all over the facade - barely visible
- some slightly longer cracks up to 0.4 meters (very thin) - these mainly extend above the garage over large parts of the facade.
- 2 vertical cracks from the garage. The latter are the only ones you can see, even if you are not standing on the garage, when you look closely. But these are also really very thin.
My question:
We have invested so much money in the house now and after the roof renovation were actually happy not to have to make any major investments for the next 20 years. Are these cracks in any way dangerous? In other words, can they damage the insulation?
I have read about the tapping test, but it doesn’t help because an ETICS apparently sounds hollow everywhere.
What I also noticed: there are small areas without ETICS on our facade, with the same color, and apart from these micro-cracks in the grooves of the paint, I found no cracks there. Could that be due to the ETICS?
I have read that a new facade with insulation costs 30-40 thousand and that if more than 10 percent repairs are needed, the entire facade has to be redone, and honestly, we have neither the desire nor the money for that... can you reassure us? We actually thought a facade just needs repainting and never has to be redone...
Picture 1: this was done in 2014.
Picture 2: the cracks are not visible from below in the sun - so very thin.
Following pictures: taken from the garage
Please assess the following:
We have an ETICS of 5 cm. The facade was repainted in 2014.
I have never really looked closely at the facade, the color is great and the facade looks like new from a distance.
But now I was on the garage and noticed the following cracks (see pictures):
- Mini cracks in the grooves of the paint - actually all over the facade - barely visible
- some slightly longer cracks up to 0.4 meters (very thin) - these mainly extend above the garage over large parts of the facade.
- 2 vertical cracks from the garage. The latter are the only ones you can see, even if you are not standing on the garage, when you look closely. But these are also really very thin.
My question:
We have invested so much money in the house now and after the roof renovation were actually happy not to have to make any major investments for the next 20 years. Are these cracks in any way dangerous? In other words, can they damage the insulation?
I have read about the tapping test, but it doesn’t help because an ETICS apparently sounds hollow everywhere.
What I also noticed: there are small areas without ETICS on our facade, with the same color, and apart from these micro-cracks in the grooves of the paint, I found no cracks there. Could that be due to the ETICS?
I have read that a new facade with insulation costs 30-40 thousand and that if more than 10 percent repairs are needed, the entire facade has to be redone, and honestly, we have neither the desire nor the money for that... can you reassure us? We actually thought a facade just needs repainting and never has to be redone...
Picture 1: this was done in 2014.
Picture 2: the cracks are not visible from below in the sun - so very thin.
Following pictures: taken from the garage
apokolok
2021-04-29 10:22:21
- #3
I can reassure you, the 'cracks' are only in the paint layer, completely normal and totally irrelevant.
basti009
2021-04-29 10:36:27
- #4
I can reassure you, the 'cracks' are only in the paint layer, completely normal and totally irrelevant.
Ok but is that allowed?
Because the cracks only appeared where the ETICS is underneath. So where it is just the house wall underneath, I don't find these cracks.
Picture 1: Facade with ETICS
Picture 2: Facade directly on house wall
Is it then enough to wait until you don't like the facade anymore because of dirt etc. and then maybe paint it again in 15-20 years?
apokolok
2021-04-29 11:41:57
- #5
Yes, that is simply due to the different substrate. The ETICS may expand or contract a bit more with temperature fluctuations, which causes the paint to crack. Just repaint it if it no longer looks good or if you feel like something different. It is really completely harmless and perfectly normal.
basti009
2021-05-01 11:50:58
- #6
In the first two pictures, the widest crack, when pressing very hard, creaks slightly in some places and the plaster can be pressed inwards minimally. Crack width approx. 0.3 mm. This is not the case with any of the other cracks. Can it be left as is, or what is the best way to proceed?
