Attaching joist to posi rafter

[SB2023]

Hi all

I have a small loft space above a bedroom that I am framing out. It is going to be used primarily for the 50kg mvhr unit a bit much else. The head height goes from 0 to 1.4m over a 4m span so not much good for anything else.

 

For all sorts of reasons I won't get into, one of my neatly spaced 400mm joists hit bang on with one of my posi rafters. All the rest carry between the rafters onto the roof plate.

 

Is there a suitable hangar I could use for this purpose? Would be rafter at 25 degrees to the horizontal joist.

 

Or am I just going to have to add a joist either side of the rafter so I don't break the "no greater than 400mm centres" rule from the engineer?

Thanks!

[markc]

You could sister the joist one or both sides of the rafter, or double up as you say. 

[SB2023]

Thanks @markc.

I guess if doing that, I might as well just double up!