Hello, I'm just about up to roof level on my extension and could do with some advice please.
It's a duo pitch cut roof that will form an attic style bedroom. The rafters are 7.2M long and 175mm x 50mm at 400 centres (SE's specification). Support is provided by the outer walls, a steel ridge beam with bolted on wall plate and an intermediate purlin each side. All rafters will be birdsmouthed and secured to the wallplates with truss clips or framing anchors.
My questions are -------
1) Will I have to fit the full length rafters or can I fit two half length rafters and overlap them on the intermediate purlins?
2)Will I need to fit any bracing? All the stuff I've read seems to apply to trussed roofs but it's not clear if it also applies to a cut roof.
Any thoughts would be appreciated.
It's a duo pitch cut roof that will form an attic style bedroom. The rafters are 7.2M long and 175mm x 50mm at 400 centres (SE's specification). Support is provided by the outer walls, a steel ridge beam with bolted on wall plate and an intermediate purlin each side. All rafters will be birdsmouthed and secured to the wallplates with truss clips or framing anchors.
My questions are -------
1) Will I have to fit the full length rafters or can I fit two half length rafters and overlap them on the intermediate purlins?
2)Will I need to fit any bracing? All the stuff I've read seems to apply to trussed roofs but it's not clear if it also applies to a cut roof.
Any thoughts would be appreciated.