Hi!

I'm working on a garage. The slab is cast and one course of lecablock is laid. Now when I re-measure the height of the level of the lecablock, I find that in one area the height is 1.5 cm lower than the rest.

The slab is 5500*6000 mm. In the picture, you can see it all from above.

The black and gray are lecablock. In the middle of the gray, it is approximately 1.5 cm lower than the black. Note that the 2-meter spirit level doesn't reveal this. I discovered it with a water level.

Should I try to fix the discrepancy?

If yes, what do you think about these solutions:

1) The standing studs in the wall frame can be slightly higher at this spot so the wall plate is level.

2) I apply some mortar on top to even out the surface under the sill.

Many thanks in advance.

Best regards, Fredrik
 
  • Overhead view of a rectangular concrete slab with dimensions marked as 6000 mm by 5500 mm; gray section is 1.5 cm lower than black.
Both methods work, but I would personally choose option 2, then it will be correct from the start so to speak.
 
Milkshaken
But hey.... It's not necessary to use more cement if he doesn't have drainage and slope in the garage....
Just cut the studs a little longer (cheapest and best)...
but if you have a drainage in the garage, you should check the slope towards it...
 
I would fix it with bruk so that I get a flat and straight sill to build from.
 
Proposal two! Then you build on a straighter foundation. It's always good to be as precise as possible with angles and a spirit level!
 
Hello Everyone!

I resolved the issue by casting a "tongue" with mortar on the lower lecablocks.
It turned out quite well actually.
I "casted" one day, and the next morning I was able to "straighten" any unevenness by "sanding" the "tongue" gently with a coarse piece of wood.

It turned out decent, just hoping it holds up now.
However, I probably still have a difference of maybe 3 millimeters, but it'll have to do.

Thanks for all the feedback.

Fredrik
 
it doesn't count. 3 mm it can tilt over a meter if I remember the regulations right, so it's fine
 
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