ᐅ Blower Door Test Not Conducted During Construction – What Now?
Created on: 11 Feb 2014 16:13
S
Sanguinius
Hello everyone,
I have a delicate problem—or maybe not, we’ll see.
The construction of my new condominium (3 units) is nearing completion. Everything went well so far, but once it came to the finer details of interior finishing, problems started...
For example, the vinyl flooring was installed first, and then work began on chiseling, drywall, tiling, and painting. You can imagine how the construction dust and debris affect the floor...
My biggest issue, however, is that we had the building constructed to KfW 70 standard. This is also stated in the construction description. The developer seriously claimed that a blower door test is not necessary to measure and verify airtightness for a condominium. The bank had a different opinion.
After overhearing some conversations among the tradespeople, with dialogues like: “Do we have to use this or that foam because of the blower door test?” I’m seriously concerned that these considerations might be coming in too late.
What happens if the KfW 70 airtightness is not met? Do you have any suggestions on how I should proceed in this case?
I have a delicate problem—or maybe not, we’ll see.
The construction of my new condominium (3 units) is nearing completion. Everything went well so far, but once it came to the finer details of interior finishing, problems started...
For example, the vinyl flooring was installed first, and then work began on chiseling, drywall, tiling, and painting. You can imagine how the construction dust and debris affect the floor...
My biggest issue, however, is that we had the building constructed to KfW 70 standard. This is also stated in the construction description. The developer seriously claimed that a blower door test is not necessary to measure and verify airtightness for a condominium. The bank had a different opinion.
After overhearing some conversations among the tradespeople, with dialogues like: “Do we have to use this or that foam because of the blower door test?” I’m seriously concerned that these considerations might be coming in too late.
What happens if the KfW 70 airtightness is not met? Do you have any suggestions on how I should proceed in this case?
B
Bauexperte13 Feb 2014 16:35Hello Wastl,
if anything, they follow the standards of a KfW 70 energy-efficient house – but do not use KfW loans and only need to comply with the applicable Energy Saving Ordinance. However, if a builder includes KfW funds in their financing and installs a ventilation system, a BDT is required to my knowledge.
Bauexperte, from on the go
if anything, they follow the standards of a KfW 70 energy-efficient house – but do not use KfW loans and only need to comply with the applicable Energy Saving Ordinance. However, if a builder includes KfW funds in their financing and installs a ventilation system, a BDT is required to my knowledge.
Bauexperte, from on the go
Bauexperte schrieb:
...If a ventilation system is installed, the BDT is generally mandatory when KfW funding is used, as far as I know; regardless of whether it is used to meet KfW "X" requirements or not... Correct! The energy saving regulations are one aspect, KfW often represents a slightly different matter
Best regards
Similar topics