Week 19 I am laying out rafter tails in the design drawings above. These rafter tails vary away from the common rafters we have been practicing frequently, and even the hip and valley rafters we spent a considerable amount of time on. What we're trying to accomplish, with all of these different pieces shown, is a rafter tail that will support crown molding.
The 5/8" plywood on top (top referring to rafter orientation, the plywood is actually all the way to the left) is standing in as a mockup for the roof deck that would be on top of these rafters once assembled. The thin piece of a block that lies flat represents the crown molding. The thicker block that lies just below that represents the fascia.
The dormer mock up shed we're working on, This shed has an 11/12 pitch roof and will have a dormer framed on either side. In This picture we have the rafters and ridge board installed, as well as some bracing to keep the whole system from racking back and forth.
A picture of our rafter tails. I was getting a lot of questions in class as to why the tails looked so weird, but again, referring to the pictures above of the sheathing, crown molding and fascia system, this is the way that the system presents on the end of the rafter tail. The first almost 90 degree (to the rafter tail itself) run downward supports the crown molding. The v cut in the center (the lower portion) will support the fascia, while there will be sheathing above and below the rafter tails we will place the soffit.
Here I am using a bar clamp to pull this rafter back down, so it will be firmly seated on the plate. With it clamped in place, I was able to re screw the birds mouth in place.
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