I'm adding a roof to a derelict (but strong) old shed.
The image below shows the simple plan. 152x38mm rafters, upon which there will be 76x50mm purlins at 1,000mm spacing. IBR roof sheets will be fixed to the purlins.
What I'm wondering is:
- Do I need to have wall plates on the load bearing walls? (so long as each rafter is fixed by a wall tie)
- What is the best (rudimentary) way to connect the rafters together at the apex? Circled in the image below. I'm hoping to avoid nail plates because of my remote location and their unavailability.
- What prevents the rafters falling over before the brick fill between them is added?