Dear Americans
I work in the construction business in Belgium and we have a lot of legislation telling us what technical installations are mandatory in a new-build home.
For example, a new build home must contain a ventilation system, energy recovering heating system… In your case, I know this maybe vary per state, but just to get a general understanding…
My questions are:
* Are certain technical installations mandatory in a new-build home in the US?
* Is specifically a ventilation unit mandatory in a new-build home in the US?