Scaffolding and trusses

Last two weeks,we have tacked double top plate on the top plate and put ceiling batten on.
First,we tacked double top plate on external wall framing,2 nails / 400 mm,then we put one edge of ceiling batten in the double top plate,another edge of ceiling batten is on internal wall framing from building's back to the front,the ceiling batten's space is 330 mm. we also put double top plate(short)on internal wall between ceiling batten.

we spent a lot of time on erecting scaffolding last week.I think it's worth.Spending more time,means making it stable and safety for us in the future.We have known Right angle coupling,swiveling coupling,jointer etc scaffolding connector and learned how to erect scaffolding,how to make it firm.

we began to tack trusses last week,about this section,I'll write next week.