Purlin supports

[Sambaker]

Hello, How do I fix struts to support purlins onto a supporting wall that runs parallel almost mid way between the two. I have studied lot of photos and diagrams but none have a similar angle to mine. Most purlins it appears are angled at 90 degrees to the rafters and the struts are attached at a similar angle as the purlin. My purlins are vertical to the floor of the loft so how would to struts work in this instance?
I have included a sketch

to illustrate the situation.

 

[EFLImpudence]

We have a roofing forum.

I'll ask for your post to be moved.

 

[^woody^]

Vertical struts. Horizontal braces.

 

[chappers]

just run struts back to the spine wall it makes no odds that your purlins are set vertically rather than on the angle.