Best way to support rafters against a wall

[Jeffers_S13]

Hi All

See image below which shows my idealised sketchup model of my project. I'm rebuilding some old outbuildings. I've done one, it's the one shown with the roofing tiled at the back of the image and I'm about to start the roof of the other intersecting building in the foreground. That other tiled roof will come across and will form an overlaid hipped roof onto the rebuilt roof in the foreground.

Massive RSJ in place as shown, I would like to know people's suggestions for how best to support the rafters against the wall of the other building.

 

[Scally-Ho]

Joist hangers. Check your local builder's merchant for what is available.

 

[noseall]

Hi All

See image below which shows my idealised sketchup model of my project. I'm rebuilding some old outbuildings. I've done one, it's the one shown with the roofing tiled at the back of the image and I'm about to start the roof of the other intersecting building in the foreground. That other tiled roof will come across and will form an overlaid hipped roof onto the rebuilt roof in the foreground.

Massive RSJ in place as shown, I would like to know people's suggestions for how best to support the rafters against the wall of the other building.


View attachment 384824

Has that gable wall been engineered to take the load?

My guess is that they would either need to be built in or a pole plate fixed or return a steel beam onto the gable somehow?

 

[Jeffers_S13]

The wall is actually concrete blocks laid on their side, I rebuilt it, and there is another new RSJ spanning the two openings. The roof I'm rebuilding was King Trusses and purlins, one of the king trusses is as shown below, from the calcs for the other RSJ in red below. This image is from the inside of the completed building. After lots of procrastinating I decided to re-roof this building too. But the load of the truss involved was included for in the calcs for the below.

I was considering a ledger and hangers as the first reply suggests, but had considered another smaller RSJ on posts, held against the wall.

 

[@tlan]

Will this ceiling be open ?

 

[Jeffers_S13]

Will this ceiling be open ?

Yes, hence the huge RSJ.

 

[@tlan]

Extend the existing ridge across to the steel, drop in 2 new valley rafters and then infill with jack rafters. No need for extra steel or hangers. One point of note the valley rafters will be deeper than your other rafters if that makes a difference.

@tlan.