Week 8 has included the building of the four main structural trusses that will be exposed to the interior space and carry the weight of the framing and roofing loads. John and I designed the truss to a specific angle specified by our solar systems engineer and began the build. They are currently cut to fit and tacked together with screws and will eventually receive metal strapping and hardware at all planar connections. The wood type is Piuva, a Brazilian hardwood and is rough sawn at best. It is milled to size with a chain saw (plain sawn technique) and the accuracy is excellent given the tools and conditions. Attention is paid to thickness when cutting stock for the king post and intersecting cords and crowning for all sloped and horizontal members is in the upward direction. The king post is left un-cut at the top where it will receive the ridge beam so fine adjustments can be made according to the varying dimensions of material that it will receive.
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