ᐅ Garage built with sand-lime bricks or aerated concrete blocks

Created on: 7 Feb 2020 21:12
S
Schurik19855
Hi everyone,

Our construction company planned a garage with the following specifications:
- 6 x 9 meters (5 meters (16.4 feet) wide garage door)
- Strip foundation and paved floor
- Hipped roof with an 18° (18 degrees) pitch
- 17.5 cm (7 inch) Ytong PP6 blocks (<----- we haven’t decided on this yet)
- Plastered finish
- Unheated
- Structural engineering checked and approved

The garage will primarily be used for parking, but also as a training space and occasionally for social events. Now the question is whether sound insulation or the thermal properties of Ytong are more important.

My idea was to build the garage with 17.5 cm (7 inch) sand-lime bricks, add a ring beam at the top, and then the hipped roof. The construction company, however, recommends Ytong instead. If I don’t want the 17.5 cm (7 inch) Ytong, they suggest using 24 cm (9.5 inch) Ytong blocks.

What do you think? What would you recommend? Does anyone have a garage made of Ytong and not regretted it? Is it not too noisy? Does Ytong really keep the garage warm? Or is sand-lime brick the better option after all?

It’s my decision, of course, but I’m really struggling with it.

Thanks in advance!

Good luck
N
netuser
23 Aug 2021 14:14
11ant schrieb:

Of course, sealing is done on both sides, and it is also flexible on both sides.

That was my (non-expert) understanding as well. However, the garage builder disagreed and said that 1. it would only be allowed with the neighbor’s permission, and 2. the gap wouldn’t be a problem. It would remain ventilated and would always dry out!?

He also pointed to the garages in the neighborhood, some of which actually stand with a small open gap like that
.

So sealing it would be better after all? 🙂
11ant23 Aug 2021 14:47
Moisture doesn’t care who owns the land or property it affects. Your neighbor will be equally interested in avoiding damage. Similar to sharing a small wall on the property boundary, you should address the joint together.
netuser schrieb:

Among other things, pointed out the garages in the neighborhood, some of which actually have a small open gap...

This is different for precast concrete garages, which arrive on flatbed trucks with a scratch plaster finish “like 3D printing” ;-) compared to those built with masonry. Does a 5cm (2 inch) air gap really guarantee that water will be blown away?
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https://www.linkedin.com/company/bauen-jetzt/
S
Schurik19855
4 Oct 2021 08:20
casperns schrieb:

Hello,

I’m facing the same dilemma and just can’t decide between sand-lime brick or aerated concrete, both in 17.5cm (7 inches).

@Schurik19855: Have you had any experience with your garage yet? Was Ytong ultimately the right choice?

From what I’ve read, rooms built with sand-lime brick tend to stay a bit cooler in summer due to their high bulk density. Aerated concrete allows more heat to pass through. In winter, it’s the opposite. Aerated concrete performs better than sand-lime brick, but for an unheated “garage,” I guess it doesn’t really matter. It will get cold with both. For now, I’ll find other ways to keep warm.

Hello,

I haven’t gathered much experience yet, but so far I’m satisfied.

We have a 24cm (9.5 inches) thick wall facing the neighbor because of the internal gutter. Otherwise, 17.5cm (7 inches) blocks are sufficient. With the right anchors, you can easily hang heavy items firmly without any issues.

I would always choose the highest bulk density grade, meaning PP6.

The installation isn’t that much easier. We also used sand-lime brick in the house, and it’s just as straightforward if you have good cutting tools.

PS: A 24cm (9.5 inches) Ytong PP6 block weighs 27 kg (60 lbs).