The last posted U-values I cannot nachvollziehen. At least not those for the monolithic construction. I had already posted these further up - the difference is significantly more pronounced.
The dowel issue is completely overrated. On the outside, you will need a handful of fastenings for lamps, a satellite mast once in a lifetime, and maybe an awning. Yes, for the [WDVs] you need special dowels and/or these mounting boxes. But what about the dowels on the inside? For aerated concrete definitely not standard dowels, and inside you need multiples more dowels just for the kitchen installation.
The myth of the pressed-in [WDVS] wall only comes from those who equate [WDVS] with yogurt cups and Styrofoam as transport protection. Ouch. Reading that is extremely painful and is not helpful at all but simply stupid. Go and run your fingernail over an aerated concrete block ... it's argued just as cleverly as the flying bicycles that could destroy everything. That’s what I meant at the beginning with practical relevance.
The main disadvantage of aerated concrete is soundproofing in relation to other building materials. Here, [WDVS] with sand-lime brick plays the trump card. You have to consider whether to take the risk; walls are difficult to replace later. But in a 30 km/h zone in a small area, you shouldn’t overestimate that. Furthermore, aerated concrete absorbs water, but it is not alone in this. In addition, the monolithic construction has disadvantages regarding thermal bridges and the associated problems for the building fabric. It can be a problem but doesn't have to be (just like not every [WDVS] is predisposed to algae growth or falls apart after 20 years).