I have some thoughts on my glazed patio room that I'm building. A ridge beam needs to be installed, which will be attached to the existing house. It has vertical board and batten siding, and inside the house wall at that height is the living room with a vaulted ceiling. This means I can't access, for example, the attic to reinforce a bit. Is it sufficient to attach a ridge beam to the existing facade with, for example, a joist hanger, or do I need to reinforce anything more? It is 90x270 and about 4 meters long.
Looked at some old pictures of the house interior. This beam that goes vertically upwards is just outside where the ridge beam will go. I could possibly have a beam from the ground, but I haven't reinforced the decking there, so I'd have to screw the boards back up and fix it. If that's what it takes, I'll do it, but I'd rather avoid it. How would it work with a joist hanger and then a shorter beam that I attach to the wall below as extra support? Hopefully, it will reach the beam you see in the picture. Should I try drilling and see if I hit resistance after the facade board, maybe?
It is not appropriate to attach a glulam beam with a joist hanger, as it usually provides too small a bearing surface. Furthermore, there is a suspicion that the load on the joist hanger might be too large. Joist hangers should also be avoided in visible installations. They are not aesthetically pleasing. In order to assess the load that the beam conveys, and thereby determine the suitable type of support, we need to know the dimensions of the conservatory, both width and depth.
With snow zone 2.5, the load on the fastening becomes approximately 18 kN, which is just over 1800 kg. This requires a glulam post, preferably 90x90. Additionally, the construction needs to be stabilized at the front if you are not going to have a solid roof with råsport or similar. This is most easily done with some form of diagonal bracing in the roof's plane.
Where is this 42x120 located?
One must ensure that the fastening of the support rule can handle the current load. It is half as large at the short sides as in the middle. Additionally, the bearing pressure must be checked to ensure it doesn't become too great. I'll get back to you later today, need to fix a couple of things first.
Thanks, no rush!
What is on the short sides has been calculated by Skånska byggvaror since they have included it and said that it should be used as such. However, they haven't included anything for the ridge beam or written how it should be attached for obvious reasons. It feels like the crucial point.
What is on the short sides has been calculated by Skånska byggvaror since they have included it and said that it should be used as such. However, they haven't included anything for the ridge beam or written how it should be attached for obvious reasons. It feels like the crucial point.
You would need support for your ridge beam that is 90 mm wide and at least 70 mm deep. You can, of course, choose the same method as for the wall beam fastening, but then there will be many long screws. You should also be careful not to load the rule in the wall more, considering that it is already carrying quite a heavy load. The best solution is an extra column. It doesn’t have to be glulam. You can take two regular wooden studs of decent strength class (e.g., C24) and screw them together.
If the polycarbonate on the roof is properly fastened, it should suffice for bracing.
If the polycarbonate on the roof is properly fastened, it should suffice for bracing.
When I looked at the photo, I see that the supports for the side wall beams go all the way down, so much of what I wrote in the previous post doesn't feel relevant. Do it the same way in the middle but use two such studs on top of each other and it will be fine. Sorry.
Then there's of course another problem... A bit further up, the panel extends about 50mm.
Should I first put a 45-rule and then two more on top of that, going all the way up? Or is it enough with a 45-rule going up to the joint in the picture, and then just one more going all the way up to the roof ridge?
Should I first put a 45-rule and then two more on top of that, going all the way up? Or is it enough with a 45-rule going up to the joint in the picture, and then just one more going all the way up to the roof ridge?
