What is an Energy Strut? It is technically defined as a composite truss, outer cord bearing, with the inner cord suspended from the outer cord to create a 14.5" wall cavity. By adding 12" of fiberglass bat insulation, R values exceeding 42 are created. Adequate moisture ventilation is maintained by the 2.5" remaining space and the integrated shell venting system. In addition, the framing contains a thermal break between the exterior and the interior members. This prevents direct heat transfer from the inside. The dome wall is protected from moisture infiltration and condensation by a positive cavity ventilation system.

Shell Connector System

The Energy Strut® is made of 2x6 and 2x4 standard building materials, and color coded for easy assembly. The connectors are steel construction and are independently tested by a certified structural engineere to meet all federal, state, and local building code requirements. The tests indicate that the dome will withstand 120-mph winds with a 3 times safety factor The dome hardware kit is available for purchase by qualified buyers.

Energy Strut Framework 52' Navajo with 2' Riser Wall

	The sheathing is 1/2" CDX exterior grade plywood. The panels are color coded and shipped in one piece for easy assembly. The riser walls, if applicable, are also double walled (R42) construction and are flush both with the interior and the exterior dome shell. Interior braces are installed in the top three rows of panels. A sealant is provided to seal off all of the joints, before the shingles are installed.
		Exterior Panels 40' Sioux with 3' Riser Wall and PWF