I have a question about the roof truss in our newly purchased house from 1936.
The house has a broken roof/mansard roof but lacks the typical support beams.
Instead, the roof goes all the way down to the floor in almost all rooms on the upper floor.
The question of the absence of support beams has been discussed here on BH before, and in those cases, the answer has been that the knee wall can be load-bearing if they are built of thick planks.
Now, we have neither support beams nor knee walls.
* In bedroom 1, there are two built-in wardrobes. Whether their front side is the old knee wall or if they were added later, I have not been able to figure out.
* In bedroom 2, there is a knee wall built of some panel material and not accessible. Could the whole space be filled with insulation?
* In bedroom 3 and bathroom, the roof goes all the way down to the floor.
* At the staircase, there is an about 2-meter wide knee wall/closet made of fairly thick planks. However, the entire thickness of the roof truss is not insulated; instead, there is a masonite sheet in the middle. Is that how it looked originally?
What I wonder is if there were such constructions or if the previous owner has removed load-bearing parts.
What ensures the shear action and rigidity in the length direction of the roof truss?
If the renovation was done a long time ago, then it obviously holds up, so maybe you don't need to worry?
Otherwise, theoretically at least, you could have sufficiently reinforced rafters to manage without the support too...
/K
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