What does the term 'seat cut' refer to in rafter construction?

In rafter construction, the term 'seat cut' specifically refers to the cut made at the end of a rafter to ensure it can fit securely onto the top plate of the wall. This cut creates a flat surface, allowing the rafter to rest firmly on the top plate, which is critical for stability and structural integrity. Properly executed seat cuts enable the weight of the roof to be distributed evenly, minimizing stress on both the rafters and the walls of the structure. Making accurate seat cuts is integral to constructing a sound roof, as it helps in aligning the rafters correctly and contributes to the overall strength of the building frame.