Hello
I'm planning to replace the roof on the garage and I'm wondering about these beams that form a cross at the height of the wall plate. They have been used to frame an inner ceiling, but now that I've planned to have it open to the ridge, that function is irrelevant. Could they also have had a bracing function?
So there is no support between the ridge beam and these, they hang and sway completely freely.
The trusses with the ridge beam were significantly under-dimensioned (50x140mm on 3.5*6.2m) but held surprisingly well. I'm going up a couple of dimensions now just to be safe.
I'm planning to replace the roof on the garage and I'm wondering about these beams that form a cross at the height of the wall plate. They have been used to frame an inner ceiling, but now that I've planned to have it open to the ridge, that function is irrelevant. Could they also have had a bracing function?
So there is no support between the ridge beam and these, they hang and sway completely freely.
The trusses with the ridge beam were significantly under-dimensioned (50x140mm on 3.5*6.2m) but held surprisingly well. I'm going up a couple of dimensions now just to be safe.
The images unfortunately provide too poor an overview for me to understand the construction.
Yes, it wasn't a great photographer. But it's quite simple, there are two beams about 70x150 in a cross and half by half in the middle where they meet. These rest on the top plate and are not connected to the ridge beam. Possibly, one of the beams was joined with the central roof beam on the short side where they met at the top plate.
What is the dimension of the ridge beam?
50x135 approximately. High-density wood from the old school. I was thinking of screwing and gluing a 45x170 to this to strengthen, but primarily to get a straight ridge, right now it's sagging a bit.J justusandersson said:
So this cross can be seen as a relief for the flimsy ridge beam even though they are not connected? Maybe I should keep it since, even though it has also seen its best days and makes the room narrower.
A laminated beam for the ridge seems impossible to get otherwise it would be an idea to beef it up some and then the cross would be redundant.
New idea after seeing that they have received glulam beams at the hardware store:
Buy three 56x225 glulam beams and place one at the ridge and the other two as side roof beams halfway between the ridge and wall plate to relieve the roof rafters. Then the "cross" should be able to be scrapped, right? 45x170 on roof rafters cc 90 with felt roof? The garage measures 3.6*6.2m where the ridge runs between the long sides.
Buy three 56x225 glulam beams and place one at the ridge and the other two as side roof beams halfway between the ridge and wall plate to relieve the roof rafters. Then the "cross" should be able to be scrapped, right? 45x170 on roof rafters cc 90 with felt roof? The garage measures 3.6*6.2m where the ridge runs between the long sides.