A structure consisting of a partial sphere (usually about half of a sphere) used to enclose space. Domes are commonly used for events, homes, greenhouses, temporary structures or to enclose equipment.

Geodesic refers to the use of points that share placement on a common curved surface and the chords (straight lines) that connect these points. The icosahedron is a platonic solid. Using the icosahedron and iterations of the icosahedron to smooth the profile, Pacific Domes structures retain the geodesic quality and the beauty and strength of the sphere, maintaining the geodesic principal.

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When talking about domes, the definition of frequency refers to the number of pieces that each edge of the base figure is divided into in the process of triangulating its sides. For instance, we might start with a base figure of an icosahedron and divide each edge of each triangular face into 3 equal lengths. Those new points are connected to divide the original triangle into 9 smaller triangles. Since the original edges were divided into 3 parts, we call this a 3-frequency dome. The frequency is commonly abbreviated as “v”, so a 2-frequency dome is called 2v, 3-frequency is 3v, and so forth. The higher the frequency the more curved and sphere like the dome appears.

Read more about Dome Frequencies.

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