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17 replies
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17 replies
Is it risk-free to take down these blue concrete walls?
I think it looks like it's self-supporting. If you want to feel really secure, you can ask a structural engineer to drop by. You might also be able to get an answer from a truss manufacturer with the picture above.
If you have walls left around the stairs up to the roof, and similarly in the opening by the kitchen, the truss has a support there, if necessary, i.e., if it is not self-supporting. However, if you look to the left of the stairs, through the entrance and out towards the living room, it seems to me that you have two trusses lying there, in the same direction, which have no support or support from below. If that is the case and they are similar in construction, they are self-supporting.
It also looks like you have an extension in the living room, that the house is L-shaped. There you probably have the trusses perpendicular to these.
What happens and what to do if it's not like this?
If the truss is not self-supporting, you can try to squeeze in a 45X195 in the attic (maybe there's a hatch from the outside?) that you place on edge perpendicular to the trusses on the lower arms, extending from the bedroom/toilet wall out towards the wall by the stairs. (Was that understandable?) It should be placed above the kitchen opening and past the stairs. It is then attached to the truss's lower arm with hanger irons.
I don't think it needs to be that drastic.
If you have walls left around the stairs up to the roof, and similarly in the opening by the kitchen, the truss has a support there, if necessary, i.e., if it is not self-supporting. However, if you look to the left of the stairs, through the entrance and out towards the living room, it seems to me that you have two trusses lying there, in the same direction, which have no support or support from below. If that is the case and they are similar in construction, they are self-supporting.
It also looks like you have an extension in the living room, that the house is L-shaped. There you probably have the trusses perpendicular to these.
What happens and what to do if it's not like this?
If the truss is not self-supporting, you can try to squeeze in a 45X195 in the attic (maybe there's a hatch from the outside?) that you place on edge perpendicular to the trusses on the lower arms, extending from the bedroom/toilet wall out towards the wall by the stairs. (Was that understandable?) It should be placed above the kitchen opening and past the stairs. It is then attached to the truss's lower arm with hanger irons.
I don't think it needs to be that drastic.
Will you still have a wall around the staircase up to the roof, and similarly in the opening by the kitchen where the roof truss has a support if necessary, i.e., if it is not self-supporting?
Yes, understood correctly.
However, if you look to the left of the staircase, through the entrance and towards the living room, I suspect you have two roof trusses laying there, in the same direction, without any support or backing underneath. If that's the case and they are identical in construction, they are self-supporting.
Yes, that's how it looks.
I also think it looks like you have an extension in the living room, that the house is at an angle. You probably have the roof trusses perpendicular to these.
That is also correct.
It is also the case that the roof trusses go "freely" in the entrance as you have mentioned before.
Yes, understood correctly.
However, if you look to the left of the staircase, through the entrance and towards the living room, I suspect you have two roof trusses laying there, in the same direction, without any support or backing underneath. If that's the case and they are identical in construction, they are self-supporting.
Yes, that's how it looks.
I also think it looks like you have an extension in the living room, that the house is at an angle. You probably have the roof trusses perpendicular to these.
That is also correct.
It is also the case that the roof trusses go "freely" in the entrance as you have mentioned before.
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