Garage made of sand-lime brick or Ytong

Hey everyone,

our construction company has planned a garage with us with the following criteria:
- 6 x 9 meters (5 meter gate)
- strip foundation and will be paved
- hip roof with 18 degree pitch
- 17.5 cm Ytong PP6 (<----- we are not yet in agreement here)
- plastered
- unheated
- static calculation is good

The garage is intended to be used as a garage later, additionally as a training place and sometimes as a party location. Now it depends on whether sound insulation is more important or the thermal properties of Ytong.

My idea was to build the garage with 17.5 cm sand-lime bricks. A ring beam on top and a hip roof on that.
The construction company advises me to use Ytong instead. If I don't want 17.5 cm, then to build with 24 cm Ytong.

What is your opinion on this, what would you advise? Does anyone have a garage made of Ytong and have you not regretted it? Isn’t it too reverberant? Does Ytong really keep the garage that warm? Or is sand-lime brick actually the better alternative?

It is my decision, yes, but I am really having a hard time with it

Thanks in advance!

Best regards

Yes, Ytong keeps warm. No, it does not absorb sound very well. And. It saves costs in masonry because it goes quickly, labor is expensive.

We want to do all the masonry ourselves. Ytong is easier to masonry yes, but Ratio plan bricks made of sand-lime stone are not that difficult to masonry either, if the first row is well aligned. The question rather is, if the garage is not heated, where should the heat come from? Does Ytong even make sense for an unheated garage?

Rather not. But completely unheated and a substitute for a party cellar? Doesn't make any sense.

The advantage of Ytong, the thermal insulation, is completely irrelevant for your intended use. You don't even want to do masonry yourself.

Build with KS. Saves space, gains area, is the same price or even cheaper.
If you party, use a patio heater or cannon (but ventilated, of course).

In 175mm KS, you can easily anchor your entire inventory to the wall. You can forget that with precast concrete garages; with aerated concrete, it's doable.

Yes, I do want to do the masonry myself. We will also build the house ourselves out of Ytong 36.5. The garage has no direct access to the house. As a party room, it would only be used occasionally if the weather is bad, otherwise with a pavilion outside. Heating can be done with a mobile heater only on the party day and of course ventilation. It would of course be nice to hear from builders who have built with Ytong or calcium silicate bricks whether they are satisfied with them. Vote: 17.5 KS or 24 Ytong PP6?