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==== Improving Sturdiness ====
The pointy ends of the roof pieces are pretty fragile particularly when moving and setting up. Foot-long pieces of sheet rock corners (the light-weight metal angles, about an inch on each side) taped along the side
hear the point make them very sturdy and only add a bit of weight.
Similarly, pieces could be added to the corners of the square pieces to keep from denting the corners when moving.