Hello!

I'm new here, so this might be in the wrong thread, but we'll see!

Almost two years ago, we built a 1½ story house, and it's time for a two-year inspection.

I have noticed that two of the roof trusses are higher than the others "on one side of the house," resulting in a "bump" on the roof that is quite visible, as well as varying distances between battens. I don't think it looks very good.

The question is:
Is there any tolerance for the height difference of roof trusses? So that I can measure before the inspection to see if it's even worth mentioning. I estimate it is about 5-7cm, maybe more.
 
It was quite a lot, I must say. Maybe it's 5-7 mm?

Possibly they've mixed up the roof trusses which usually come sorted in a package and should be installed in the same order to prevent the roof from becoming wavy.

How can you see the battens on a finished roof?
 
No, it's cm, if it had been 5mm you wouldn't have seen it so clearly from the ground.

I have a 5-meter leveling rod that I'm planning to check with and measure once this week. Let's see how that goes :)

You don't see the battens, but if you look at the roof tiles, the top 4 rows are at different distances while the rest of the roof is at the same, so I assume it's the battens that are at different levels.

I also have a dormer on the other side, it's those rafters that are higher.
 
The roof has probably settled due to the dormer.

It's possible that the rafters, if cut for the dormer, haven't been properly reinforced. Maybe there should have been a ridge beam.
 
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peternicklas
What does the ceiling look like inside? If it's as much as 5-7 cm, this must also be visible from the inside. Cracks in the ceiling? Wavy wall at the dormer? etc.
 
mycke_nu said:
The roof has probably settled due to the dormer.

It may be that the rafters, if they were cut for the dormer, were not bridged correctly. Maybe there should have been a ridge beam.
There is a ridge beam, and double rafters. It must have been wrong from the start.
 
peternicklas said:
What does the ceiling look like inside? If it is as much as 5-7 cm, this must also be visible from the inside. Cracks in the ceiling? Wavy wall by the dormer? etc.
The ceiling looks fine inside, with some cracks along one gable. I should add that the upper floor was recently renovated, noticed it was a bit low/high in some spots when I was spacing and plastering, but not enough for me to think much of it. It's more on the outside.

I should contact a structural engineer to find out if there's any tolerance for this.
 
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