Do i understand my roof structure correctly?

[padstar]

The rafters are nailed to the ledger plate using 90mm collated nails. I thought this was common practice - Is that OK

I went a bit OTT on the size of the ledger board but as it wont be seen i am not too fussed about it.

I need to install a small fillet above the ledger board for the top tile batten to fit to. I realized the rafter calculator i used allowed for a fillet rather than the tops of the rafters hitting the wall after i had made all of the cuts!!

I was considering adding a smaller restraint strap mid door span as the door is 2.5m wide. I will pick some smaller depth ones up this week

Last rafter on the right is spaced differently as it has a cavity wall between it and the next rafter. Its only fixed temporarily to allow me to build the wall up then i will add a further rafter in between the 2 to close off against the wall.

Ridge and jack rafters are now in also just leaving the valley

 

[padstar]

Do i need to install joists between the existing and new wall or can it be left like this. I plan to use this as a home gym and thought the extra head height may be nice

 

[23vc]

BCO might want some kind of truss clip type thing at the rafter tops as theyre not sat atop the plate as woody says

 

[23vc]

Do i need to install joists between the existing and new wall or can it be left like this. I plan to use this as a home gym and thought the extra head height may be nice

As far as I can see you’re not relying on any ceiling joists to hold it together so should be able to go vaulted ... I think

 

[padstar]

This sort of set up?

Do you think this will be an issue? All the research i did most nailed back to the board.

I was thinking is there any sort of clip i should install at the bottom where the birds mouth is similar to the image above

 

[^woody^]

The rafters are nailed to the ledger plate using 90mm collated nails. I thought this was common practice

No it's wrong. There is potential for the rafter to be pulled outwards, let alone the fact that vertical load is reliant on a couple of nails - unlike seating the rafters on top of a ledger board.

You should fit some brackets as per 23cv to restrain each rafter. Right angle brackets will do, instead of truss clips.

 

[padstar]

So right angle brackets fixed to each side of the rafter and back into the ledger?