Blower Door Test 1.7 with two hints

  • Erstellt am 2019-12-17 19:49:06

Tina mit K

2019-12-18 19:30:08
  • #1
For the Energy Saving Ordinance, a 2.99 is sufficient to pass
 

Adunoh1983

2019-12-18 19:37:15
  • #2
The bad thing is that the test is below 3, so it is to be criticized... The identified defects should definitely be fixed, but unfortunately I will not be able to do more... I am really angry I will request another test after the defects have been remedied, hope it will be significantly better then.
 

nominator

2019-12-18 19:44:45
  • #3
Thanks for the info - under 3.0? I think that’s a bad joke.

With [Kontrollierte-Wohnraumlüftung] it is 1.5, which is not a great performance for the BU. I think I once heard something about 0.1 - 0.2 for top houses.
 

haydee

2019-12-18 20:02:00
  • #4
You can’t do much about the test result. Passed is passed. The presumably found defects I would have checked by experts and have the GU fix them. An indication that something is wrong is the value. I can hardly imagine 0.1 or 0.2. Many here have values in the range of 0.6/0.8. Almost or just passive house value. Still, it’s not that easy to be guaranteed better than 0.6. That’s why for the passive house two tests are carried out and sealing is done much more elaborately. The 1st test after the building envelope is closed, before screed and interior finishing.
 

nominator

2019-12-18 20:12:22
  • #5
I once saw the BDT on the internet from someone who built a plus-energy house in Bavaria - I think it was 0.2 before and 0.1 or 0.15 after.

Our BDT tester stated (2008) that a typical value for houses with controlled residential ventilation is between 1.0 and 0.5.
 

guckuck2

2019-12-18 20:35:46
  • #6
I would not get hung up on the value, but on the identified defects that need to be improved. The goal is therefore not to criticize a strange threshold, but concrete structural defects. But yes, 1.7 is not exactly impressive.
 

Similar topics
01.03.2017Controlled residential ventilation - Yes or No?!31
03.03.2012Position controlled residential ventilation in the underground basement?16
09.04.2012Decentralized vs. Central Controlled Residential Ventilation? Points for KfW House Calculation20
26.07.2012Ventilation with controlled residential ventilation system15
05.07.2012Controlled residential ventilation - yes or no14
24.12.2012Is controlled residential ventilation in this case sensible or not?10
27.02.2013Controlled residential ventilation or regulated air - experiences?14
20.12.2013New underfloor heating instead of radiators and controlled residential ventilation; yes or no?15
25.08.2014Decentralized residential ventilation, exhaust air heat pump - experiences?10
25.05.2014When do you notice that the controlled residential ventilation system is working?18
24.06.2014Decentralized controlled residential ventilation so expensive?38
10.08.2018Landscaping company - defects, high bill, no warranty?!13
18.10.2018Liability for various defects after acceptance of the property19
21.05.2019Balcony door and window sills - defects in new construction28
09.03.2021Withholding payment for defects in the shell construction74
24.12.2021GU insolvency after acceptance - Open defects15
03.10.2022Building acceptance of new construction despite missing heat pump. Significant defects?50
06.04.2023Deficiencies in the new construction. Dispute over the amount of withholdings.35
19.04.2024Bank withdraws financing commitment due to defects20

Oben