In addition to the north and south walls, the center roof is supported by four glulam beams spanning east to west.
Once the beams were all in place, doubled 2x12's were placed spanning down the slope in the north south direction.
2x4 purlins were then placed across the 2x12's to support the sloping portion of the central roof where water will drain off the side roofs.
In the middle of this sloping roof a hand framed truss rises to create a higher roof that will provide space for clerestory windows and skylights above.
Here the directional flow of the water down the roofs can be understood.
Five skylights above, three clerestory windows on the south, one on the east and west sides, and three on the north side create the full extent of light that will filter down into the central living space. Each section of light from above corresponds to a function below- the kitchen island, the dining table, entry into the living room around the fireplace and the balcony library.
Here are the three skylights above the dining table. Eventually, white hollow cube forms will be set up within these trusses, directing and reflecting this light from above.