Several tax advisor supports planned - is that normal and okay?

Hello,

we are building our new house with the following masonry structure: 24cm Poroton + 14cm insulation + 11.5cm facing brick.

I posted the floor plan here yesterday:

Now the architect has updated the drawings again just before the start of construction. Suddenly, the two western corners of the house are made of reinforced concrete, and there are also reinforced concrete columns in the western wall and in the southern wall. Allegedly, the size of the living-dining area is responsible for this.

Furthermore, there are now two reinforced concrete bracing columns on each "long" side of the upper floor, supposedly because of the large span of the rooms. The house is 15 meters long, and upstairs there are two rooms nearly 7 meters long each.

Question: Couldn't this be solved differently? Should I ask the architect for a stronger ceiling (currently 20cm) or for "better" masonry blocks? Or is this alright? I am concerned about the so-called thermal bridges.

Good evening,

Your architect did not change the execution drawings for fun, but according to the specifications of the structural calculations; requirement of the structural engineer. Fewer steel columns would have surprised me given the architecture of the single-family house, not the other way around.

Construction expert on the go

Hello construction expert,

thank you for your response.

Do I have to expect problems due to the worse thermal insulation in the areas, or is it offset by the 14cm core insulation?

At a BV, many people already work hand in hand during the planning stage. I am sure that especially your architect pays special attention to the building envelope.

Continue to give him your trust; he had that when signing the contract, didn't he?

If you are so uncertain, you should rather consider external construction supervision; an extra pair of eyes is never wrong ... for all 3 temporary partners ;-)

Construction expert on the go

14 cm of wool with a WLG of 0.035 W/mK have a U-value of 0.24 W/m²K - less than with aerated concrete, but overall not so low that you would have to fear condensation here. At -5° C temperature, you have a surface temperature of 18.5 °C - for condensation to occur there, you would need about 80% relative humidity at 22 °C room temperature... which is rather very rare (never) in winter.

Thank you very much for the helpful answer.