All rafters are attached with framing nails, usually 10d or 12d, driven in with a hammer, but specific installations vary according to the type of roof. ... Nail each rafter to the ridge board with the plumb cuts flush against the sides of the ridge. Nail rafter tops together with the plumb cuts flush against each other.

How are rafters joined?

Connect rafters at the peak with a ridge board or with gussets. A ridge board runs between pairs of rafters the length of the roof, to form the actual peak. The angled tops of rafters are nailed to the ridge board, two nails in each rafter. ... They are nailed across the rafters to join them securely.

How do you attach rafters to joists?

Attach a seismic anchor to the side of the rafter opposite the joist. Seismic anchors are joints with a 90-degree-angle twist that connect the rafters directly to the wall. Nail the joist to the rafter. Use at least four nails per joist/rafter connection.