basti009
2022-01-12 07:26:52
- #1
But there was also insulation on it, I don't know how old it is. Can anything be recognized here?
Now there are 16 cm on it, which was enough for a U-value to receive the subsidy.
one more question:
In the energy certificate from 2014 it says:
Energy efficiency class E (demand certificate) with a value of 133.
From 130 there is class D. How much would the new roof have lowered the value approximately? It should definitely be class D now, right?
Here is the picture of the waste from the old roof. Can you see how much insulation was on it?