ᐅ Bathroom on the upper floor: ventilation shaft?

@Tubifex: Hello, you seem to be quite knowledgeable, so I have a follow-up question regarding your last post: A DIN standard is not always mandatory by itself. Which regulation requires the installer to comply with it?

Hello Tubifex,

thank you for your reply!
The ventilation outlet is actually far enough away, even on the opposite side of the gable roof. So it is definitely at least 2m (6.5 ft) away. I’m not exactly sure if the outlet is 1m (3.3 ft) higher or not, but I think that requirement would also be met.
However, because of the wind draft (which blows from a mountain down towards the house), the odor is being blown directly toward our windows…. Most likely, the ventilation would need to be relocated completely to the other corner of the roof to prevent it from drifting into the windows. (But who knows if the wind might change direction occasionally…)

willWohnen schrieb:
@Tubifex: Hello, you seem very knowledgeable, so I have a follow-up question regarding your last post: A DIN standard is not always legally binding by itself. Under which regulation is the installer bound to it?

Hello.
That is correct: a DIN standard is a technical guideline and a recommendation, not initially a legally binding regulation. It is different if the service specification or the architect’s or specialist engineer’s documentation in the building contract refers to a specific currently valid DIN standard. For example, if there is a written note that the latest DIN 1986 standard must be applied and complied with, then the guideline or rule becomes a legally enforceable directive. Generally, any construction services specified by a planner, architect, or specialist engineer in the bill of quantities or building contract include references to the VOB/C and the currently valid DIN standard applicable to the trade.

The DIN standard provides engineers, architects, craftsmen, clients, and ultimately mediators or judges with a basis on how to carry out a work and how to assess, remedy, or rule on a defect.

DIN standards are developed by experts from the relevant trade who serve as consultants—such as university lecturers, specialist engineers, craftsmen, and others.

DIN standards are a German system; recently, European standards have been gradually established based on national standards, harmonizing and integrating them into a European standard.

Best regards,
Leo

@Tubifex Thank you. In our case, several things are unfortunately combined in one sentence: "...constructed in solid, craft-based workmanship according to the currently valid DIN standards, regulations, the Energy Saving Ordinance (Energieeinsparverordnung), and the recognized rules of technology." Unfortunately, this wording allows the construction company to deviate somewhat from the DIN standards, as long as it complies with the recognized rules of technology. The latter are, of course, difficult to define. In a discussion, our expert inspector did not dare to insist strictly on compliance with DIN standards; instead, the argument revolved around whether the method of construction could function properly or not. Fortunately, I had a reference to specific guidelines that include DIN descriptions added in writing for the base construction. This is shared here for completeness for anyone who is about to sign a contract.

This is to complete the information for everyone who has yet to sign a contract.

A good recommendation!!