How must rafters be framed to each other?

Rafters must be framed to each other using a gusset plate because this method provides additional strength and stability to the joint connections. Gusset plates are flat pieces of metal or wood that are used to connect the rafters at their junction, effectively transferring loads and forces across the connection. This is especially important in roofing systems, where structural integrity under various loads, such as snow and wind, is crucial.

Using gusset plates not only enhances the load-bearing capacity of the framing but also helps to ensure proper alignment and reduces the likelihood of rafter movement over time. The design allows for a greater surface area for the connection, distributing forces more evenly and minimizing stress concentrations.

In contrast, other methods such as metal brackets or toenailing may not provide the same level of stability or may be more suited for different applications, while screws can be effective but may not offer the comprehensive support that a gusset plate provides in this specific context.