Private Residential Dome - Angora, MN
N 47° 42.417 W 092° 38.760
15T E 526555 N 5283790
Located at 8123 US Hwy 53 Angora, MN 55703 between Cook and Virginia, MN
Waymark Code: WME4F2
Location: Minnesota, United States
Date Posted: 04/02/2012
Views: 7
Geodesic Domes
A geodesic dome is a spherical or partial-spherical shell structure or lattice shell based on a network of great circles (geodesics) on the surface of a sphere. The geodesics intersect to form triangular elements that have local triangular rigidity and also distribute the stress across the structure. When completed to form a complete sphere, it is a geodesic sphere. A dome is enclosed, unlike open geodesic structures such as playground climbers.
Methods of construction:
Wooden domes have a hole drilled in the width of a strut. A stainless steel band locks the strut's hole to a steel pipe. With this method, the struts may be cut to the exact length needed. Triangles of exterior plywood are then nailed to the struts. The dome is wrapped from the bottom to the top with several stapled layers of tar paper, in order to shed water, and finished with shingles. This type of dome is often called a hub-and-strut dome because of the use of steel hubs to tie the struts together.
Panelized domes are constructed of separately-framed timbers covered in plywood. The three members comprising the triangular frame are often cut at compound angles in order to provide for a flat fitting of the various triangles. Holes are drilled through the members at precise locations and steel bolts then connect the triangles to form the dome. These members are often 2x4's or 2x6's, which allow for more insulation to fit within the triangle. The panelized technique allows the builder to attach the plywood skin to the triangles while safely working on the ground or in a comfortable shop out of the weather. This method does not require expensive steel hubs. From -
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We have passed this private home quite a few times in the summer and fall without ever noticing it was there because of the hills and treed landscape. This trip, in the early spring revealed this rather large geodesic dome home. It does appear to be built using the Panelized dome method because of the shingled exterior.
I cannot imagine the challenge the roofers endure to complete this task.
Please remember this is a private residence.