Is there any established technique for creating a passage in the bottom chord of a truss? I am planning the installation of a stove, and of course, the chimney passes within 2mm right in the middle of a truss's bottom chord.
The basic principle is, of course, to create a passage using nearby trusses, and that will work well—I also have a wall a few decimeters from the truss I want to cut which can act as support.
What I am pondering is how to handle potential tension loads in the truss's bottom chord.
The solution I spontaneously imagine is to mount a vertical stud between the top and bottom chords and then secure this with large pieces of plywood on each side. That way, I can accommodate non-vertical loads.
Tips from the coach?
The basic principle is, of course, to create a passage using nearby trusses, and that will work well—I also have a wall a few decimeters from the truss I want to cut which can act as support.
What I am pondering is how to handle potential tension loads in the truss's bottom chord.
The solution I spontaneously imagine is to mount a vertical stud between the top and bottom chords and then secure this with large pieces of plywood on each side. That way, I can accommodate non-vertical loads.
Tips from the coach?
I did it that way in a similar case.
We replaced a window with a balcony door in a brick gable and had to cut a "underarm" (see picture). Additionally, we had an extra complication since the next truss had been completely removed and the forces were transferred to the gable.
To handle the longitudinal forces, I installed strong vertical studs to the floor joist and then plywood (and plasterboard) for additional locking and reinforcement.
Did it hold? I don't know... haven't cut the underarm yet...
Edit> The gable is not brick in the usual sense, it's basically a truss filled with stacked limestone.
We replaced a window with a balcony door in a brick gable and had to cut a "underarm" (see picture). Additionally, we had an extra complication since the next truss had been completely removed and the forces were transferred to the gable.
To handle the longitudinal forces, I installed strong vertical studs to the floor joist and then plywood (and plasterboard) for additional locking and reinforcement.
Did it hold? I don't know... haven't cut the underarm yet...
Edit> The gable is not brick in the usual sense, it's basically a truss filled with stacked limestone.
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Ok....if you get the saw, we'll see what happens before I start building.....
There have been offsets made for a masonry chimney (which no longer exists) here in the house, and you can't see that anything special has been done to handle anything other than vertical forces.
There have been offsets made for a masonry chimney (which no longer exists) here in the house, and you can't see that anything special has been done to handle anything other than vertical forces.
The new chimney is of the Premodul type and has a diameter of 28cm. Additionally, there are 5cm for combustible material.
It feels a bit shaky to extend so much on the width.
I will take a closer look at the support that has already been done and see if it's possible to build stronger from that.
It feels a bit shaky to extend so much on the width.
I will take a closer look at the support that has already been done and see if it's possible to build stronger from that.