I celebrated Easter at my father/mother-in-law's place. They have a glazed patio, and today I started wondering when I noticed that the roof beams only seem to be attached to the support beam using toe nails. When using the model in the picture where the roof beam doesn't rest on the support beam, shouldn't it be fastened with a joist hanger? See the picture where the attachment is marked.
There is no fundamental problem with toe-nailing. It depends on the number of nails and their strength. The maximum vertical load on such a fastening can easily reach 500 kg. Much more if it is a deep roof and it is in a higher snow zone or if the risk of snow pockets is high.
Would have been easier to answer if you had provided measurements for the roof, it's different if it's 3 sqm or 50 sqm, and where in the country it is Skåne or Norrland.
Never use perforated plates of any kind if it's a visible installation. They are really ugly, and camouflage painting them doesn't help at all either. Toe nailing is the way to go. It's just like Justus says, just adapt the timber and nails to the circumstances.
Would have been easier to answer if you had put out measurements of the roof, different if it's 3 sqm or 50 sqm, and where in the country it is Skåne or Norrland.
No problem with skew nailing if there isn't much snow.
The holders aren't exactly pretty as people here have pointed out.
Ok great! It usually doesn't snow much here.
If it were a sunroom in Norrland, how would it be recommended to attach the roof beams to the bearer?
I've seen that sometimes a smaller board is screwed along the bottom of the bearer, and a corresponding cut-out is made in the roof beam. Then the roof beam rests on top of that board. The beam is, of course, also attached to the bearer in a similar way as above.
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