Hello!
I have a glulam beam that was installed about 10 years ago. Now I think I see a few more cracks than before. However, there is no measurable deflection.
What concerned me was that one crack is quite deep in some places, about 1/3 of the total beam depth. Longer but not as deep cracks on the other side. See pictures, when should one be worried?
It is a load-bearing wall, in a 1 1/2 story house. Where the floor structure for the upper floor rests on the load-bearing wall and outer wall.
Kind regards,
I have a glulam beam that was installed about 10 years ago. Now I think I see a few more cracks than before. However, there is no measurable deflection.
What concerned me was that one crack is quite deep in some places, about 1/3 of the total beam depth. Longer but not as deep cracks on the other side. See pictures, when should one be worried?
It is a load-bearing wall, in a 1 1/2 story house. Where the floor structure for the upper floor rests on the load-bearing wall and outer wall.
Kind regards,
At least it's the right season for dry cracks to show their worst side. It's probably no problem. Bumping the master @justusandersson who surely knows what to do.
Hard to evaluate, I think. Not really my area of expertise. As long as the cracks remain within the respective lamella, it might not be a disaster. They seem to be primarily at the upper edge of the beam, which is positive. When similar cracks appear in solid wood, it is often over-dimensioned constructions. I don't think it should happen with glulam. Glulam manufacturers naturally have specialists in this type of phenomena. It might be wise to verify the dimensioning.