Flat roof: Insulation requirement upon change of ownership and exceptions

  • Erstellt am 2021-08-21 11:04:24

Proeter

2021-08-21 11:04:24
  • #1
Hello everyone,

As is well known, when an older house changes ownership, there are various renovation obligations, which also include the insulation of the roof, provided the living space is directly adjacent to it.
Now, in §47 paragraph 2 of the [Gebäudeenergiegesetz] there is an exception (or rather a mitigation of the obligation) in the case:
"Wird der Wärmeschutz nach Absatz 1 Satz 2 als Zwischensparrendämmung ausgeführt und ist die Dämmschichtdicke wegen einer innenseitigen Bekleidung oder der Sparrenhöhe begrenzt..."
This exception is frequently used for pitched roofs and is also widely discussed on the internet.
But what applies to flat roofs? Their insulation cannot (in my understanding) be equated with an insulation between rafters, as paragraph 2 would literally apply.
But are there also any exceptions there? Or must the 0.24 W/m²K specified in §47 paragraph 1 fundamentally be complied with in the case of an old flat roof?

Important: Even though my question contains some paragraphs, I obviously do not expect legal advice. Perhaps some of you have bought, inherited, or renovated a house with an old flat roof and have dealt with this question?

Best regards from
Pröter
 

Similar topics
29.04.2014Combination of shed roof and flat roof14
12.06.2014Single-family house with flat roof - your opinions?15
22.05.2015Alternative to the flat roof16
27.02.2015Water on flat roof - double layers of roof sealing11
14.04.2016Detached villa with "gable roof" or flat roof37
26.01.2017Satellite antenna on flat roof - installation and cable laying11
24.04.2017cost of walkable flat roof13
17.06.2017Is a penthouse allowed if the development plan requires a flat roof?15
25.06.2017Saddle or flat roof - experiences?18
30.08.2017setback floor, attic floor, gable roof, flat roof11
15.08.2018Work planning single-family house 180 sqm flat roof with basement & double garage142
29.10.2018Roof, flat roof, gable roof, shed roof - How much does each cost?22
19.07.2020Single-family house - flat roof - forest edge location - 175 sqm125
09.07.2023Green flat roof and photovoltaic system14
19.08.2019Feedback on the floor plan - single-family house with flat roof34
30.06.2019Attic training at a flat roof10
27.02.2020Flat roof warranty expired, what to do or do nothing?29
01.04.2020Flat roof construction with self-supporting railing or similar13
22.12.2020Floor plan of a single-family house with a flat roof on a 600m² plot19
19.03.2021Flat roof leaking, repair or build a roof structure over it?24

Oben