Hello,
I am planning to buy a house, but unfortunately, no energy consultant is available at the moment, so I’m trying to figure out myself whether additional insulation is necessary or not.
The house was built in 1973 and is a solid construction.
According to the energy certificate, the thermal quality of the building envelope is 0.81 W. Is that considered good?
The property has a full basement, and I noticed that the front and back doors contain a lot of thin glass. I think replacing these doors could help somewhat.
All the windows are double-glazed with wooden frames.
Basement: KSV 1.8/150, thickness = 36.5cm (14 inches), insulation plaster on the outside in the soil.
Ground floor: 11.5 cm (4.5 inches) KSV, 1.8/250, 2cm (1 inch) polystyrene, 17.5 cm (7 inches) KSL 1.4/150
Additionally, one entire exterior wall has an attached garage, and the upper floor features a covered loggia.
The roof is insulated, with a blue vapor barrier underneath, partially covered with slate and concrete tiles, and it is a collar beam roof. Furthermore, the attic floor consists of boards and 10cm (4 inches) mineral wool.
The living area and the main entrance are also covered by an additional roof.
Based on this information, is it possible to roughly estimate whether significant additional insulation is needed, or is it something that only an energy consultant can determine?
Thank you in advance, and have a nice weekend.
I am planning to buy a house, but unfortunately, no energy consultant is available at the moment, so I’m trying to figure out myself whether additional insulation is necessary or not.
The house was built in 1973 and is a solid construction.
According to the energy certificate, the thermal quality of the building envelope is 0.81 W. Is that considered good?
The property has a full basement, and I noticed that the front and back doors contain a lot of thin glass. I think replacing these doors could help somewhat.
All the windows are double-glazed with wooden frames.
Basement: KSV 1.8/150, thickness = 36.5cm (14 inches), insulation plaster on the outside in the soil.
Ground floor: 11.5 cm (4.5 inches) KSV, 1.8/250, 2cm (1 inch) polystyrene, 17.5 cm (7 inches) KSL 1.4/150
Additionally, one entire exterior wall has an attached garage, and the upper floor features a covered loggia.
The roof is insulated, with a blue vapor barrier underneath, partially covered with slate and concrete tiles, and it is a collar beam roof. Furthermore, the attic floor consists of boards and 10cm (4 inches) mineral wool.
The living area and the main entrance are also covered by an additional roof.
Based on this information, is it possible to roughly estimate whether significant additional insulation is needed, or is it something that only an energy consultant can determine?
Thank you in advance, and have a nice weekend.
B
Benutzer2006 Feb 2022 13:34Jermomio schrieb:
Can it be roughly estimated from this whether significant additional insulation is necessary,Where does this "must" come from? The only requirements initially when purchasing are: attic or roof, and pipes in unheated basements. But only if nothing has been done yet.The next question is whether energy efficiency measures make sense. This does not necessarily mean insulation; it could also be windows, a modern heating system, and/or new radiators.
You can already answer this yourself if you know the actual energy consumption of the house. At 6,000 liters of heating oil per year, energy measures definitely make sense – at only 1,000 liters, probably not.
Apart from that, with the information you provided, the answer to your question is: no idea.
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