Beam above doorway

[Willy Sangwill]

By "hängsla upp," he means placing cross beams at the support legs between two roof trusses. But you cannot frame over the loft, unless the loft is supposed to be about 2.9 m above the floor. It should be enough with 7 roof trusses.

 

[steppen7]

Maybe I was unclear, it should be a raised framework so that the exterior wall the roof trusses rest on will have two heights. The standard height about 2.7m for the trusses and 2.1m or whatever it becomes for the framework trusses.

 

[Willy Sangwill]

I understand it will be a framework with raised wall life. But I don't understand why 10 trusses are needed. As I wrote in the previous post, 7+2 should be enough, 2 at the gables.

 

[steppen7]

You're right. 9 pieces are enough if you place them on cc1200. Then they cover (9-1)x1.2=9.6m and the garage is 9.3m. But that places a post above the door, so I either need to move the door or raise the framework a bit to make room for the header. The third option is to invest in an extra truss and place one on each side of the door. I would probably have needed an extra crossbeam even if I didn't take an extra truss, so you could say that the additional cost to avoid moving the door or raising the frameworks a bit is barely 1000 SEK, and I think it's worth it to get the loft and the door optimally. However, it won't be standard measurements, so it will be a bit more complicated to build...

I'm still not entirely sure where to best place the framework post closest to the attic space. How do you build the inner wall on the loft? Maybe just cover that truss with sheet material and 45mm insulation? Though you want more insulation on that part of the wall where there is attic space on the other side... Hmmm...

 

[Willy Sangwill]

My idea was to cover the truss with insulation and wall panels; you have to build onto the truss to make it wider. In my previous post, the idea was to attach the floor joists to the truss-wall and laminated timber at the ridge. This way, you avoid altering the outer wall, resulting in a more stable floor structure. For the opening at the door, construction timber 45x220 is sufficient. Probably cheaper too.