ᐅ Bricking up a garage. Any tips?

Created on: 25 Jul 2017 23:27
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Forza...
Hello,
we had a 9 x 4 m (30 x 13 ft) garage shortened to 7 x 4 m (23 x 13 ft). Now the garage needs to be bricked up again. It’s already frustrating that I couldn’t do the demolition myself... Now, as the future homeowner, I want to at least build a wall myself! However, I have never done this before...
Additionally, a window and a door are to be installed.

The garage was built in 1981. It has a thick foundation with reinforcement and a frost skirt at a depth of 80 cm (31 inches). The walls are made of calcium silicate bricks (2DF). At the top there is a wall tie, which is currently hanging free on two sides due to the demolition. The ceiling consists of 4 m (13 ft) long aerated concrete slabs with steel reinforcement. These rest on the walls.
Now I want to brick up the front wall, where the garage door used to be and which has now been removed, by myself. Also, a standard door and a window should be installed.

In my mind, I had planned to simply build the new wall at a right angle to the existing wall so that it aligns with the aerated concrete ceiling on top. I would install a lintel above the door and window, and that’s it. However, I was told that I should interlock the corners of the walls for stability. Also, the wall tie should be continued?
Open garage with construction debris, tools, and building materials in front of a residential house

Dark facade side with entrance door, window, and wooden floor in the foreground

3D front view of a modern house with entrance door and paved forecourt


Perhaps some of you can give me good advice on how to best get started, which approach is the right one, and whether it might be better to just hire a mason to do everything.

For clarification, I have attached photos of both the current state and the planned state.

Thank you in advance!

Good luck,
Manu
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winnetou78
26 Jul 2017 09:51
In the end, you’re just building onto the concrete slab,
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baufix42
26 Jul 2017 11:14
I still see many usable stones in the demolition debris. Just a little cleaning can save about 50 cents per stone.
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Caspar2020
26 Jul 2017 11:28
baufix42 schrieb:
I still see many usable stones in the demolition debris. Clean them up a bit, and you save about 50 cents per stone.

Above all, this also reduces the costs for disposing of the rubble.
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Nordlys
26 Jul 2017 13:24
I want to revisit my previous comment about sealing with Ytong. You can bond it directly to the old walls and install an anchor every second or third row—that works. For details on how, check online. There are many YouTube videos available. Karsten
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toxicmolotof
26 Jul 2017 14:07
Just a different question:

Is the former garage located on the property boundary? And is the change of use approved?

You don’t want to do all the work and then have the authorities come around and say: that’s not allowed...
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Nordlys
26 Jul 2017 14:20
Pssst. This is not something you talk about.