The house is perched on nine broad wood trusses to avoid cutting a single tree. The trusses also permit air and water to flow under the house, preserving the hydrology. The butterfly-shaped roof opens views to the creek and funnels rainwater into a collection system. Photo 14 of 16 in The 7 Main Roof Types—and What You Need to Know About Them from Triangle House Tours

The 7 Main Roof Types—and What You Need to Know About Them

14 of 16

A gravity-defying cantilever and a butterfly roof make this house appear as if it were precariously perched on the hillside.

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